MESON Chess Problem Database
Problem Display
PID: 82124 (1b5K/5p2/1BQ1N2n/r2Nk1P1/5R2/n4P2/2p5/q7 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Schach-Echo, 1965
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Bxd4#
- 1...Qb1
- 2.Bd4#
- 1...Qc1
- 2.Bd4#
- 1...Qe1
- 2.Bd4#
- 1...Qf1
- 2.Bd4#
- 1...Qh1
- 2.Bd4#
- 1...Qa2
- 2.Bd4#
- 1...Ba7
- 2.Bc7#
- 1...Bc7
- 2.Bxc7#
- 1...Sf5
- 2.Re4#
- 1...Qd4
- Tries
- 1.Se3?
- threat
- 2.Re4#
- 1...Qd4
- 2.Bxd4#
- 1...Ra4
- 2.Qd5#
- 1...f5!
- threat
- 1.Sd4?
- threat
- 2.Re4#
- 1...Qxd4
- 2.Bxd4#
- 1...f5
- 2.Qe6#
- 1...Qe1!
- threat
- 1.Sg7?
- threat
- 2.Re4#
- 1...Qd4
- 2.Bxd4#
- 1...Qe1
- 2.Bd4#
- 1...f5
- 2.Qe6#
- 1...Ra4!
- threat
- 1.Se3?
- Keys
- 1.Se7!
- threat
- 2.Re4#
- 1...Qd4
- 2.Bxd4#
- 1...Qe1
- 2.Bd4#
- 1...Ra4
- 2.Qd5#
- 1...f5
- 2.Sg6#
- threat
- 1.Se7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- Q(a);N_GUARD::B(E),XQ(a)
- Q(a);N_GUARD::B(E)
- B(h);N_GUARD::B(E)
- B(h);N_GUARD::B(E),XB(h)
- S(f);SBLOCK::R1(B)
- Tries
- Try
- S(C);
- Threat
- R1(B)
- Vars
- Q(a);N_GUARD::B(E),XQ(a)
- R(d);N_GUARD::QAR1(F)
- Refutation
- P(g);
- Try
- S(G);
- Threat
- R1(B)
- Vars
- Q(a);OGATE,XS(G)::B(E),XQ(a)
- P(g);N_GUARD::QAR1(F)
- Refutation
- Q(a);
- Try
- S(G);
- Threat
- R1(B)
- Vars
- Q(a);N_GUARD::B(E),XQ(a)
- Q(a);N_GUARD::B(E)
- P(g);N_GUARD::QAR1(F)
- Refutation
- R(d);
- Try
- Actual
- S(C);
- Threat
- R1(B)
- Vars
- Q(a);N_GUARD::B(E),XQ(a)
- Q(a);N_GUARD::B(E)
- R(d);N_GUARD::QAR1(F)
- P(g);N_GUARD::S(C)
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