Round 6 Game 7:
DB Hiarcs 1.0 - MAC Sargon 4
RESULT: 1-0
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https://lichess.org/rP3ZYBol
CRITICAL POSITION
[fen]r3k1r1/p1pq1p1p/1p2p3/n5pB/1Q1Pb3/P3PP2/PB1R2PP/R5K1 w q - 0 20[/fen]
DB Hiarcs 1.0 positionally is slightly better after 20 moves. In this position on move 20 MAC Sargon 4 best move was 20. ... Bg6 with everything still to play for. 20 MAC Sargon 4 made a mistake playing 20. ... Bd5? which makes everything much easier for DB Hiarcs 1.0.
FINAL POSITION
[fen]8/1k6/1pr5/8/5P1Q/P7/6PP/5K2 w - - 0 51[/fen]
GAME QUALITY SUMMARY
DB Hiarcs 1.0, 30S. (2300)
4 Inaccuracies
2 Mistakes
0 Blunders
29 Average centipawn loss
MAC Sargon 4, 30S. (2200)
5 Inaccuracies
9 Mistakes
1 Blunders
50 Average centipawn loss
Round 6 Game 8:
DB Psion Chess 2.13 - MAC MacChess 2.5
RESULT: 1/2-1/2
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https://lichess.org/gG40qxRQ
CRITICAL POSITION
[fen]r5k1/2p1bppp/1q6/4P3/2Bn1B2/2NQ1b1P/5P2/4R1K1 w - - 0 28[/fen]
MAC MacChess 2.5 had the best opportunities in this drawn game. In the above position MAC MacChess 2.5 has pretty good advantage but missed the move 28. ... Rd8! that probably would have won quite easily. 28. ... Ra3 only draws.
FINAL POSITION
[fen]7k/8/3bN2p/3B2p1/8/7P/4bPK1/8 w - - 0 41[/fen]
GAME QUALITY SUMMARY
DB Psion Chess 2.13, 30S. (2200)
4 Inaccuracies
4 Mistakes
0 Blunders
27 Average centipawn loss
MAC MacChess 2.5, 30S. (2300)
3 Inaccuracies
3 Mistakes
0 Blunders
26 Average centipawn loss
Round 6 Game 9:
DB Fritz 1 - MAC Gnu Chess 4.0
RESULT: 1/2-1/2
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https://lichess.org/YhZ2gTwC
CRITICAL POSITION
[fen]8/8/8/R4K2/1p6/1k6/8/8 w - - 0 51[/fen]
The frustration of Morsch which people witnessed over the years thousands of times by playing Fritz 1, 2 & 3 DOS and the many derivatives of these programs inside about 100 (or what seems to be a 100) dedicated chess computers is nicely highlighted in the above position.
DB Fritz 1 easily led this game from the start and it seemed that it was just a matter of time for me to notch a win on the scorecard. But no, as so often happens in an endgame, Morsch messes up and in this example lets a win slip away.
This should be simple endgame knowledge which every chess player learns from his own hard earned losing experience when learning chess as a beginner. You cannot allow the King to get to the 2nd rank to support it's pawn in a rook ending, while your own King is out of position to assist your Rook. It is just a matter of simple math, the art of counting squares.
Anyway DB Fritz 1 messes up by playing a rook move first with with 51. Ra7 instead of a King move with 51. Ke4!
Perhaps I should not be too harsh as I suspect that many old non Morsch dedicated chess computers would likely make the exact same mistake. Difference however being that DB Fritz 1 played at a speed of a Pentium 90 which makes it worse.
This actually is a good position to test your dedicated chess computer with.
FINAL POSITION
[fen]8/2R5/8/5K2/8/8/1p6/3k4 w - - 0 59[/fen]
GAME QUALITY SUMMARY
DB Fritz 1, 30S. (2200)
6 Inaccuracies
1 Mistakes
1 Blunders
40 Average centipawn loss
MAC Gnu Chess 4.0, 30S. (2150)
8 Inaccuracies
6 Mistakes
2 Blunders
41 Average centipawn loss
Round 6 Game 10:
DB Kallisto 1.83 - DB Fritz 2
RESULT: 1-0
CLICK BELOW TO REPLAY GAME
https://lichess.org/R5ub3V57
CRITICAL POSITION
[fen]6r1/4kn2/1p2p2p/2n1Pp1N/5P1P/8/P2BB1b1/1R2K3 w - - 0 43[/fen]
DB Kallisto 1.83 is ahead but with so many pieces still on the board it is not so easy to win. DB Fritz 2 however blunders in this position with the move 43. ... Bh3? and as a result does indeed make it easy for DB Kallisto 1.83 to win. 43. ... Rb8 was probably the best move to play.
FINAL POSITION
[fen]5R2/8/3kP2p/8/P7/8/8/2K5 w - - 0 69[/fen]
GAME QUALITY SUMMARY
DB Kallisto 1.83, 60/30. (2332)
2 Inaccuracies
1 Mistakes
0 Blunders
15 Average centipawn loss
DB Fritz 2, 30S. (2250)
5 Inaccuracies
3 Mistakes
2 Blunders
30 Average centipawn loss
Best regards