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Member since Dec-11-14 · Last seen Mar-28-21
Matthew Doucette, Game Producer at Xona Games (, an award-winning Xbox and PlayStation indie game studio. Interested in chess and computer chess. Author of Xonafish chess engine ( Peak rating on Chess Tempo: 1857 (peak), 1829 (peak active) (

   Xonatron has kibitzed 26 times to chessgames   [more...]
   Jun-20-17 Korchnoi vs Short, 1976 (replies)
Xonatron: @lostemperor, Short claims he was only 10 when he played in this game (simult), in his book, Nigel Short's Chess Skills.
   Jun-18-17 Short vs Chiburdanidze, 1985 (replies)
Xonatron: Short mentions this mate in 1 blunder in his book, "Nigel Short's Chess Skills".
   Jun-04-17 Deep Blue vs Kasparov, 1997 (replies)
Xonatron: In Garry's new book, Deep Thinking, he explains 7... h6 was a planned attacked, not a mistake, knowing that Deep Blue would not play 8. Nxe6 and retreat the knight instead. Other chess engines at the time were known not to play it, due to material disadvantage. Apparently he ...
   Jun-04-17 Kasparov vs Deep Blue, 1997 (replies)
Xonatron: 44. Rg7+ is coming in at +2.80 for Kasparov on Stockfish 8 at depth 39/91+ (after 8m:10s):
   Jun-02-17 Leitao vs K Georgiev, 2001
Xonatron: Up to half way through move 15, it's the same as Kasparov vs. The World: Kasparov vs The World, 1999 Thanks to Sneaky for this info: User: Sneaky
   Jun-02-17 Kasparov vs The World, 1999 (replies)
Xonatron: Left Stockfish 8 running all night from scratch (no hashtable fill from other moves) after 37...e6. It sees 38. Rd1 with a score of +7.20 at a depth of 61/110 in 6hrs:27m:37s: FEN: [DIAGRAM] Stockfish_8_x64_popcnt: 61/110 6:27:37 252,227,366k 10,845k +7.20 Rd1 Ke4 Bxd6 Kf5 g6 ...
   May-31-17 Kasparov vs Deep Thought, 1989 (replies)
Xonatron: By helping it with moves, I got Stockfish 8 to solve mate in 22 at the end of this game, with 37... Rc2+.
   May-31-17 Deep Thought vs Kasparov, 1989 (replies)
Xonatron: Stockfish 8 shows Kasparov had a mate in 26 with 45... Kf6! (His previous move of 44... g3 is also this same mate.) It follows: 46. fxg3 Nxe3 47. Rxe3 Rxe3 48. Qxf3 Rxf3 (all forced) and then black is up a rook and mate follows in 22 more moves.
   May-03-17 A Mayo vs T O'Donnell, 2000
Xonatron: Article (somewhat) on this game:
   Feb-03-16 Carlsen vs Radjabov, 2015 (replies)
Xonatron: Here is the game:
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