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ANNOTATED GAME
Memorial Day Classic Round 6
Ausbon (1620) vs. (me) byakuugan3 (1698)
Annotated by: byakuugan3 (1200)
Chess opening: Sicilian defence (B20)
Ausbon (1620) vs. (me) byakuugan3 (1698)
Annotated by: byakuugan3 (1200)
Chess opening: Sicilian defence (B20)
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38... Rxc5 |
White should have a forced draw somewhere, because it doesn't seem possible for me to win this. Kh2 avoids trading rooks, and then my only chances of winning are if I can get my knights to g3 and f4, and then forcibly play Rxg2# White letting me trade rooks gives me better winning chances | |||||
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39. Rd1 Rc1 40. Rxc1 Ndxc1 |
I didn't want to take with the other knight because I wasn't comfortable with White playing g3. | |||||
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41. Ne5 |
Now this appears to be drawn, since I see no way of promoting my last pawn. I didn't think I could ever win this since White will play Nf3 next move and take my last pawn, but then I realized that two knights might be enough to mate White since he still has pawns on the board. | |||||
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41... Kf4 42. Nf3 Kg3 43. Nxh4 |
White offered a draw here, and I was actually relieved that he took the pawn. If he leaves the knight on the board, then he has a much better chance of drawing. Taking the pawn is probably losing, although White must've thought that I couldn't possibly mate him with two knights. | |||||
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43... Kxh4 |
I declined the draw, because White's king is cornered, and his pawns are far from promotion. The only reason two knights can't mate a king is because the knights have to stalemate the king before mating it, which would be a draw. Since White still has pawns on the board, White won't be stalemated when I try to mate him with the knights, so I still have winning chances, and probably a forced win. | |||||
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44. Kh2 |
g3 and g4 lose quickly because Kg3 stalemates the king and then I just need to maneuver Nd3-f2 mate while White can only push his pawn. If both of White's pawns were off the board, then this would definitely be a draw. | |||||
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44... Ng3 |
I have to limit White's activity as much as possible | |||||
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45. Kg1 Nd3 |
White's king is locked in the corner. It's like a puzzle to figure out how I can complete a mating maneuver with two knights. | |||||
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46. Kh2 Nf2 |
I wanted to get my knight to e4 to support my g3 knight, because if my king was on f2, then Nf1 Kh1 Ng3# would be mate. When your opponent has limited moving range, then It's okay to think as if you have unlimited moves | |||||
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47. Kg1 Nfe4 48. Kh2 Kg5 |
My mating idea of getting my king to f2 will only work if White's h-pawn was blockaded, so I was thinking that maybe I couldn't win this. But if White tries to free space by pushing his h-pawn now, then I should still be able to win since White can only maneuver his king back and forth from h2 to g1. White has better drawing chances if he keeps the pawns on the board and waits to see what I do, instead of trying to get his pawns off the board quickly so he can claim a draw. I should be able to win as long as White still has 1 pawn on the board. | |||||
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49. Kg1 Kf4 |
I'm hoping White will push the pawn, since winning will be simpler if White only has one pawn. All I would need to do it find a cornering tactic and stalemate the king, then complete a mating maneuver while White can only push his pawn. I analysed this ending with my opponent and a few other tournament spectators, and couldn't find any way White could draw this. But White probably had many drawing chances before he sacced his knight for my last pawn. | |||||
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50. Kh2 Ke3 |
I was happy I saw a cornering tactic if White pushes the pawn. If White doesn't push the pawn and keeps moving the king from g1 to h2, then 51.Kg1 Nf6 52.Kh2 Kf2 53.h4 Ne2 and there are many winning lines for me, because White can't stop me from cornering the king with Ng1, and then completing the mating maneuver 54...Nf4 55...Ne2 56...Ng3# But against 54.Kh1 after 53...Ne2, I don't need Ng1 and can just play Ng4 immediately followed by Ng3#. Another winning sequence I analysed was Kg1 Nf6 h4 Ng4 h5 Ke2 h6 Ke1 h7 Ne2 Kh1 Kf1 h8=Q Ng3# | |||||
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51. h4 |
White decides to push the pawn and escape to h3 while my king isn't close enough to take the pawn. | |||||
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51... Nf1+ |
This is my cornering tactic because White can't escape to h3 because of Nf2# | |||||
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52. Kg1 |
Kh1 loses quickly to Kf2 then Neg3# but my winning sequence after Kg1 was very nice, and everything was pretty much forced after that | |||||
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52... Neg3 |
White's king is stalemated, and can only push his pawn, so I had everything calculated here to make sure I could forcibly checkmate White. Note that this position would be a draw if White didn't have the pawn on g2. | |||||
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53. h5 Ke2 54. h6 Ke1 55. h7 Ne2+ 56. Kh1 Kf2 57. h8=Q Neg3# |
Just in time! | |||||
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