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1.e2-e4 c7-c5 2. Ng1-f3 d7-d6 3. Bf1-c4 Nb8-d7 4. O-O e7-e5 5. Nb1-c3 Ng8-h6 6. d2-d3 Qd8-a5 7. Bc1xh6 g7xh6 8. Nc3-d5 b7-b5 9. Bc4xb5 Ra8-b8 10. a2-a4 Bf8-g7 11. Nf3-d2 Rh8-f8 12.Nd2-c4 Rb8xb5 13. a4xb5 Qa5xa1 14. Qd1xa1 Ke8-d8 15.Qa1xa7 Kd8-e8 16. Qa7-c7 Rf8-g8 17 Qc7xc8 checkmate.

White TJF
Black Weak chess program.

[pgn]1.e2-e4 c7-c5 2. Ng1-f3 d7-d6 3. Bf1-c4 Nb8-d7 4. O-O e7-e5 5. Nb1-c3 Ng8-h6 6. d2-d3 Qd8-a5 7. Bc1xh6 g7xh6 8. Nc3-d5 b7-b5 9. Bc4xb5 Ra8-b8 10. a2-a4 Bf8-g7 11. Nf3-d2 Rh8-f8 12.Nd2-c4 Rb8xb5 13. a4xb5 Qa5xa1 14. Qd1xa1 Ke8-d8 15.Qa1xa7 Kd8-e8 16. Qa7-c7 Rf8-g8
17. Qc7xc8
[/pgn]

Thanks Henk, The chess program was awful but I liked winning.

Probably a chess computer on a plane

S.Taylor wrote:Probably a chess computer on a plane

Most probably a chess computer attached to an oven

Good to hear from you Uncle Timbo

That chess program could beat over 90 percent of all chess players. We, at the CTF/CCC are in the upper one to five percent of all chess players. If you looked at my moves you saw that I was looking ahead at least five moves and set up a trap to force the black queen to either be forked without compensation or go down the exchange, taking a rook as I captured the black queen. Trappy game. Fischer would have laughed at my play but he would see the thought that went into it. I am no more than a 1900 elo chess player but that is in the upper one to two percent of all chess players. Good enough. Next time I play V. Putin, I will let him win and humiliate me. T

tjfroh wrote:Thanks Henk, The chess program was awful but I liked winning.

Chess is only a nice game if you are winning. Otherwise it's the opposite. So if you take the average their is no gain unless you are a good loser too.

tjfroh wrote: If you looked at my moves you saw that I was looking ahead at least five moves

your engine didn't see mate in 4 plies (2 moves), which I consider impossible.

The only reasonable explanation of black moves - from time to time engine do not play searched/analyzed move but rather randomly pick any legal move.

Even very weak engine (MS-DOS Rebel) in fraction of a second reach D=3 (6 plies), and select correct move 11. .. Qd8, which is quite hard to win.

But black play 11. .. Rf8??, a move which none engine will select even at D=1 ply

and set up a trap to force the black queen to either be forked without compensation or go down the exchange

it was not trap. 11. .. Rf8 was random move, equally bad to direct Queen give away: 11. .. Qc3 12. bxc3

Black played Rf8 not being in trap. 11. .. Qd8 and black feel fine.

After Rf8?? white have 40 legal moves and 31 of them are white win.

Henk wrote:[pgn]1.e2-e4 c7-c5 2. Ng1-f3 d7-d6 3. Bf1-c4 Nb8-d7 4. O-O e7-e5 5. Nb1-c3 Ng8-h6 6. d2-d3 Qd8-a5 7. Bc1xh6 g7xh6 8. Nc3-d5 b7-b5 9. Bc4xb5 Ra8-b8 10. a2-a4 Bf8-g7 11. Nf3-d2 Rh8-f8 12.Nd2-c4 Rb8xb5 13. a4xb5 Qa5xa1 14. Qd1xa1 Ke8-d8 15.Qa1xa7 Kd8-e8 16. Qa7-c7 Rf8-g8
17. Qc7xc8
[/pgn]

What am I missing? I believe I would have tried 13. Nxa5 and on Rxa5 14. Qd2 Ra6 15. Nc7 etc.

Dayffd wrote:

Henk wrote:[pgn]1.e2-e4 c7-c5 2. Ng1-f3 d7-d6 3. Bf1-c4 Nb8-d7 4. O-O e7-e5 5. Nb1-c3 Ng8-h6 6. d2-d3 Qd8-a5 7. Bc1xh6 g7xh6 8. Nc3-d5 b7-b5 9. Bc4xb5 Ra8-b8 10. a2-a4 Bf8-g7 11. Nf3-d2 Rh8-f8 12.Nd2-c4 Rb8xb5 13. a4xb5 Qa5xa1 14. Qd1xa1 Ke8-d8 15.Qa1xa7 Kd8-e8 16. Qa7-c7 Rf8-g8
17. Qc7xc8
[/pgn]

What am I missing? I believe I would have tried 13. Nxa5 and on Rxa5 14. Qd2 Ra6 15. Nc7 etc.

Notice that black's queen is trapped and can't escape without a mate in one with the white knight. I forced the exchange and eliminated a rook at the same time. White then won easily. T