Good days to take off work:
February 7, 2036 NTP 32-bit unsigned time stamp values will overflow.
January 19, 2038 Unix Time 32-bit signed value will overflow.
November 20, 2038 GPS week number rollover.
A diagram illustrating the starting position of the chess problem on a chess board. The chess pieces are arranged as follows, White - King: h6, Queen: b7, Knights: f3 f4, pawns: b2 a4; Black - King: d6, pawns: c6. The instructions for solving the chess problem are, "White to move and checkmate in three moves".
Chess problem for the week of Apr 20, 2026: By Cornelio Horn, published in "British Chess Magazine" in 1894. White to move and checkmate in three moves.
FEN: 8/1Q6/2pk3K/8/P4N2/5N2/1P6/8 w - - 0 1
SOL: chess.w00tness.info/26/83.html
#ajedrez #chess #échecs #schaak #schach #chessfeed
I’m very excited to hear this. I did a presentation on Lunar Claire Obscure effects at my local astronomy club in early March then had an opportunity to observe the Lunar V and Lunar (Werner) X on March 25 and those events have wetted my appetite for more CO observations.
Would you mind is I show (but not share) your image at my next astronomy club meeting? We had a discussion about this at our March meeting and the computer simulations just showed Callisto popping fully into view … first it was not there then, bang! It was there.
I think the term, “Dwarf Planet” is unfortunate but the two alternatives that came to my mind already have established meanings and definitions in planetary science.
I have been interested in astronomy since I was four years old. Even at that tender young age, flipping through the worn pages of my Golden Book of the Stars and Planets, I realized Pluto was not like the other eight planets. The demotion confirmed my childhood suspicions.
Callisto is usually brighter. Any idea why it is so faint in your image? It is emerging from Jupiter’s shadow?
A diagram illustrating the starting position of the chess problem on a chess board. The chess pieces are arranged as follows, White - King: g1, Queen: g5, Rooks: h4, Knights: g2, pawns: b2 c2 c3; Black - King: c4, Bishops: f4, Knights: g4, pawns: g3 b5 c5 d5 e5 f7. The instructions for solving the chess problem are, "White to move and checkmate in two moves".
Chess problem for the week of Apr 13, 2026: By F. Elson, published in "British Chess Magazine" in 1889. White to move and checkmate in two moves.
FEN: 8/5p2/8/1pppp1Q1/2k2bnR/2P3p1/1PP3N1/6K1 w - - 0 1
SOL: chess.w00tness.info/26/82.html
#ajedrez #chess #échecs #schaak #schach #chessfeed
A diagram illustrating the starting position of the chess problem on a chess board. The chess pieces are arranged as follows, White - King: c8, Rooks: a2, pawns: b6; Black - King: a8, Bishops: b8, pawns: a7 b7. The instructions for solving the chess problem are, "White to move and checkmate in two moves".
Chess problem for the week of Apr 6, 2026: By Paul Morphy as a child, later published in "New York Clipper" in 1856. White to move and checkmate in two moves.
FEN: kbK5/pp6/1P6/8/8/8/R7/8 w - - 0 1
SOL: chess.w00tness.info/26/81.html
#ajedrez #chess #échecs #schaak #schach #chessfeed
While the position in the problem is improbable and looks illegal, Loyd provided a comical proof game to show it could be reached through 'normal' play (contains spoiler). Download the file and play through it in a PGN viewer: chess.w00tness.info/files/Loyd-G...
(2/2)
A diagram illustrating the starting position of the chess problem on a chess board. The chess pieces are arranged as follows, White - King: h7, Queen: h6, Rooks: g6 h8, Knights: a1 f8, pawns: c2 d2 e2 h2 b3 b4 g5 a7; Black - King: g4, Rooks: g8, Bishops: b8, pawns: f4 f5 b6 e6 c7 d7 g7. The instructions for solving the chess problem are, "White to move and checkmate in four moves".
Problem for week of Mar 30, 2026: By Samuel Loyd, published in "NY Chess Association", 1894. White to move and mate in four moves.
FEN: 1b3NrR/P1pp2pK/1p2p1RQ/5pP1/1P3pk1/1P6/2PPP2P/N7 w - f6 0 1
SOL: chess.w00tness.info/26/80.html
(1/2)
#ajedrez #chess #échecs #schaak #schach #chessfeed
The objective of the study is to find the best sequence of moves that gives White a winning advantage. The winning advantage may appear many moves prior to checkmate and it is not always necessary to solve all the way to checkmate. Most studies are best solved with the aid of a chess board. (2/2)
A diagram illustrating the starting position of the chess study on a chess board. The chess pieces are arranged as follows, White - King: c2, pawns: b2; Black - King: f6, pawns: a4. The instructions for solving the chess study are, "White to move and win".
Chess study for the week of Mar 23, 2026: By F. Cassidy, published in "The Chess Monthly" in 1884. White to move and win.
FEN: 8/8/5k2/8/p7/8/1PK5/8 w - - 0 1
SOL: chess.w00tness.info/26/79.html
(1/2)
#ajedrez #chess #échecs #schaak #schach #chessfeed
A diagram illustrating the starting position of the chess problem on a chess board. The chess pieces are arranged as follows, White - King: f7, Queen: h1, Rooks: b7, Knights: g8; Black - King: a8, Rooks: a7. The instructions for solving the chess problem are, "White to move and checkmate in three moves".
Chess problem for the week of Mar 16, 2026: By Oscar Blumenthal, published in "777 Miniatures in Three" in 1908. White to move and checkmate in three moves.
FEN: k5N1/rR3K2/8/8/8/8/8/7Q w - - 0 1
SOL: chess.w00tness.info/26/78.html
#ajedrez #chess #échecs #schaak #schach #chessfeed
A diagram illustrating the starting position of the chess problem on a chess board. The chess pieces are arranged as follows, White - King: g5, Queen: f1, Bishops: f4, Knights: f2; Black - King: f3, Bishops: h1, pawns: h2. The instructions for solving the chess problem are, "White to move and checkmate in two moves".
Chess problem for the week of Mar 9, 2026: By W. Jensen, published in "320 Danske Skakopgaver" in 1902. White to move and checkmate in two moves.
FEN: 8/8/8/6K1/5B2/5k2/5N1p/5Q1b w - - 0 1
SOL: chess.w00tness.info/26/77.html
#ajedrez #chess #échecs #schaak #schach #chessfeed
A diagram illustrating the starting position of the chess problem on a chess board. The chess pieces are arranged as follows, White - King: h1, Queen: g8, Rooks: e5 f7, Bishops: f6, Knights: d1, pawns: e2 c4; Black - King: d4, Rooks: b5 d5, Bishops: d6, Knights: c5, pawns: b3 h5. The instructions for solving the chess problem are, "White to move and checkmate in two moves".
Chess problem for the week of Mar 2, 2026: By J.W. Abbott, published in "121 Chess Problems" in 1887. White to move and checkmate in two moves.
FEN: 6Q1/5R2/3b1B2/1rnrR2p/2Pk4/1p6/4P3/3N3K w - - 0 1
SOL: chess.w00tness.info/26/76.html
#ajedrez #chess #échecs #schaak #schach #chessfeed
Hints:
1) The objective is to find the best sequence of moves that gives White a winning advantage.
2) The winning advantage may appear many moves prior to checkmate.
3) It is not always necessary to solve all the way to checkmate.
4) Most studies are best solved with the aid of a chess board. (3/3)
Henri Rinck (1870 - 1952) was one of the most important and prolific early chess composers. He published 1670 endgame studies, 58 of which won first prize in study composition tourneys. He was buried with a copy of his ultimate study collection, "1414 fins de partie", under his arm. (2/3)
A diagram illustrating the starting position of the chess study on a chess board. The chess pieces are arranged as follows, White - King: h2, pawns: a3; Black - King: a2, pawns: f3. The instructions for solving the chess problem are, "White to move and win".
Chess study for the week of Feb 23, 2026: Composed by Henri Rinck and published in "Schweizerische Schachzeitung" in 1922. White to move and win.
FEN: 8/8/8/8/8/P4p2/k6K/8 w - - 0 1
SOL: chess.w00tness.info/26/75.html
(1/3)
#ajedrez #chess #échecs #schaak #schach #chessfeed
A diagram illustrating the starting position of the chess problem on a chess board. The chess pieces are arranged as follows, White - King: c1, Queen: d8, Knights: h3; Black - King: h1, Bishops: e4, pawns: h2. The instructions for solving the chess problem are, "White to move and checkmate in three moves".
Chess problem for the week of Feb 16, 2026: Composed by Nils Rutberg and published in "Svenska Dagbladet" in 1924. White to move and checkmate in three moves.
FEN: 3Q4/8/8/8/4b3/7N/7p/2K4k w - - 0 1
SOL: chess.w00tness.info/26/74.html
#ajedrez #chess #échecs #schaak #schach #chessfeed
Alain C. White (1880 - 1951) learned chess at age five and amassed a collection of some 250,000 chess problems by 1920. In 1914, he founded the Good Companions Chess Problem Club, to which many well-known problemists of the time belonged, and published the club's journal, "Good Companions". (2/2)
A diagram illustrating the starting position of the chess problem on a chess board. The chess pieces are arranged as follows, White - King: h8, Queen: f6, Rooks: d8, Bishops: d2 b3, Knights: f4, pawns: c2; Black - King: d1, Queen: b1, Bishops: c1. The instructions for solving the chess problem are, "White to move and checkmate in two moves".
Chess problem for the week of Feb 9, 2026: By Alain C. White and published in "Good Companions" in 1920. White to move and checkmate in two moves.
FEN: 3R3K/8/5Q2/8/5N2/1B6/2PB4/1qbk4 w - - 0 1
SOL: chess.w00tness.info/26/73.html
(1/2)
#ajedrez #chess #échecs #schaak #schach #chessfeed
Meindert Niemeijer (1902 - 1987) was a Dutch chess composer who created over 600 chess compositions and, in 1975, became an International Master for Chess Composition. He had a personal library of more than 7000 chess books and authored and published forty books on chess composition. (2/2)
A diagram illustrating the starting position of the chess problem on a chess board. The chess pieces are arranged as follows, White - King: b3, Queen: c5, Rooks: g1, Bishops: f2, Knights: e3, pawns: c6; Black - King: f4, Rooks: h3 f6, Bishops: h6, pawns: f3 e4 h5 h7. The instructions for solving the chess problem are, "White to move and checkmate in two moves".
Chess problem for the week of Feb 2, 2026: By Dr. Meindert Niemeijer, published in "Tijdschrift" in 1919. White to move and mate in two moves.
FEN: 8/7p/2P2r1b/2Q4p/4pk2/1K2Np1r/5B2/6R1 w - - 0 1
SOL: chess.w00tness.info/26/72.html
(1/2)
#ajedrez #chess #échecs #schaak #schach #chessfeed
The objective is to find the best sequence of moves that gives White a decisive advantage. This could be a passed or promoted pawn; a forked, skewered, trapped, or captured enemy piece; a superior position; or a checkmate. Most studies are best solved with the aid of a chess board. (2/2)
A diagram illustrating the starting position of the chess study on a chess board. The chess pieces are arranged as follows, White - King: f6, Bishops: c4, pawns: d6; Black - King: f8, Bishops: h5. The instructions for solving the chess study are, "White to move and win".
Chess study for the week of Jan 26, 2026: Composed by Otto Dehler and published in "Leipziger Tageblatt" in 1921. White to move and win.
FEN: 5k2/8/3P1K2/7b/2B5/8/8/8 w - - 0 1
SOL: chess.w00tness.info/26/71.html
(1/2)
#ajedrez #chess #échecs #schaak #schach #chessfeed
Kurt Laue (1887 - 1953) was a German correspondence chess player and composer, composing mostly direct mates and some helpmates. He was the first Treasurer of the Internationaler Fernschachbund, a society of international correspondence chess players formed in Berlin in 1928.
(2/2)
A diagram illustrating the starting position of the chess problem on a chess board. The chess pieces are arranged as follows, White - King: g5, Rooks: a1, Bishops: d5, Knights: f2 h2, pawns: g2 b3; Black - King: g3. The instructions for solving the chess problem are, "White to move and mate in three".
Chess problem for the week of Jan 19, 2026: Composed by Kurt Laue and published in "Deutsches Wochenschach" in 1910. White to move and mate in three.
FEN: 8/8/8/3B2K1/8/1P4k1/5NPN/R7 w - - 0 1
SOL: chess.w00tness.info/26/70.html
(1/2)
#ajedrez #chess #échecs #schaak #schach #chessfeed
A diagram illustrating the starting position of the chess problem on a chess board. The chess pieces are arranged as follows, White - King: g8, Queen: a6, Rooks: e1, Bishops: a3 d3, Knights: a5 a8, pawns: f2 g6 f7; Black - King: d5, Bishops: b8, Knights: a7 f8, pawns: f3 d4 f4 b5 c5 g7. The instructions for solving the chess problem are, "White to move and mate in two".
Chess problem for the week of Jan 12, 2026: By Arthur James Mosely and published in "Good Companion" in 1914. White to move and mate in two.
FEN: Nb3nK1/n4Pp1/Q5P1/Nppk4/3p1p2/B2B1p2/5P2/4R3 w - - 0 1
SOL: chess.w00tness.info/26/69.html
#ajedrez #chess #échecs #schaak #schach #chessfeed
A diagram illustrating the starting position of the chess problem on a chess board. The chess pieces are arranged as follows, White - King: b5, Queen: h7, Knights: b6 f7; Black - King: c7. The instructions for solving the chess problem are, "White to move and mate in two".
Chess problem for the week of Jan 5, 2026: Composed by Herman Weyer Lund Aschehoug and published in "Morgenbladet" in 1902. White to move and mate in two.
FEN: 8/2k2N1Q/1N6/1K6/8/8/8/8 w - - 0 1
SOL: chess.w00tness.info/26/68.html
#ajedrez #chess #échecs #schaak #schach #chessfeed