White to move
After 37...Rc3 |
The game continued 38...Rxe3 39.a5 Ra3 40.Rb8+ Kh7 41.Rb7 Kg6 42.Ra7 f6?! 43.exf6 gxf6
This position may be equal.
White to move
44.a6 e5 45.Kg1
Black to move
45...e4?! 46.Kf2= Kf5 47.Ra8 Kf4 48.g3+ Kf5 49.a7
Black to move
49...e3+??+-
I went on to win. 49...Ra2+ holds the draw.
Training Game A
In the first practice session, I returned to the position after 37...Rc3 and tried 38.Ra8+. Rather than burdening my reader with all the moves in the long battle, I will limit myself. The game came one move short of a draw by the 50-move rule. I wish to present a few of the positions that I think are instructive.
White to move
After 39...Kg6 |
Black to move
The White king is vulnerable to checks, but the a-pawn is a threat that compensates.
The computer and I reached this position.
White to move
After 62...Ra6 |
63.g4! Rxh6+ 64.Kg3 Rd6 65.g5 e1Q+ 66.Rxe1 Kxe1 67.Kf4 Rd4+ 68.Kf5
Black to move
In another line from this game that diverged at move 49, I found myself in this position.
White to move
After 64...Rh2 |
Hence 65...Rb8! Rxh4 66.Rb4+
(I could have played 66.Rb3)
66...e4 67.Rb3
Black to move
Training Game B
In the second game against Hiarcs, I started with an improvement on the part of my opponent at move 45. Instead of 45...e4, I loaded the position after 45...Kf5! Defense of a slightly worse position was difficult, but after several takebacks, I seem to have found a way to maintain equality.
The most instructive position came after 62...Ra4+.
White to move
63.Kf5! is the only move that draws. This time, White's h-pawn proves to be an equalizing threat.
63...Kxg2 64.h4 Kg3 65.Rg8+ Kh3 66.h5 f3 67.Rg1
Black to move
67...Ra5+ 68.Kg6 Ra6+ 69.Kg7 f2 70.Rf1 Kg2 71.Rxf2+ Kxf2 72.h6
Black to move
The engine always plays until lone kings stand on the board, but at this point the result should be clear.
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