MESON Chess Problem Database
Problem Display
PID: 57286 (3n3B/5p1R/4p1R1/2pp4/2p1Q3/1B1pP3/1p1N1P2/k4K2 w - - 0 1)
Onkoud, Abdelaziz
Troll, 1996
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...cxb3
- 2.Qa4#
- 1...c3
- 2.Qa4#
- 1...d4
- 2.Qa8#
- 1...e5
- 2.Ra6#
- 1...fxg6
- 2.Ra7#
- 1...f5
- 2.Ra7#
- 1...f6
- 2.Ra7#
- 1...cxb3
- Tries
- 1.Rg1?
- threat
- 2.Kg2#
- 1...cxb3
- 2.Qa4#
- 1...c3
- 2.Qa4#
- 1...d4
- 2.Qa8#
- 1...f6
- 2.Ra7#
- 1...e5!
- threat
- 1.Rh1?
- threat
- 2.Kg2#
- 1...cxb3
- 2.Qa4#
- 1...c3
- 2.Qa4#
- 1...d4
- 2.Qa8#
- 1...e5
- 2.Ra6#
- 1...f6!
- threat
- 1.Qxc4?
- threat
- 2.Qa6#
- 2.Qc1#
- 2.Qa4#
- 1...Sc6
- 2.Qc1#
- 2.Qa4#
- 1...Sb7
- 2.Qc1#
- 2.Qa4#
- 1...d4
- 2.Qa6#
- 2.Qa4#
- 1...e5
- 2.Ra6#
- 2.Qa6#
- 2.Qa4#
- 1...f6
- 2.Ra7#
- 2.Qa6#
- 2.Qa4#
- 1...dxc4!
- threat
- 1.Qd4?
- threat
- 2.Qxb2#
- 1...c3
- 2.Qa4#
- 1...e5
- 2.Ra6#
- 1...f6
- 2.Ra7#
- 1...cxd4!
- threat
- 1.Qg4?
- threat
- 2.Qd1#
- 1...cxb3
- 2.Qa4#
- 1...c3
- 2.Qa4#
- 1...e5
- 2.Ra6#
- 1...f6
- 2.Ra7#
- 1...d4!
- threat
- 1.Rg1?
- Keys
- 1.Kg2!
- threat
- 2.Rh1#
- 1...cxb3
- 2.Qa4#
- 1...c3
- 2.Qa4#
- 1...d4
- 2.Qa8#
- 1...e5
- 2.Ra6#
- 1...f6
- 2.Ra7#
- threat
- 1.Kg2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- P(d);OGATE,XB(D)::QAR(F)
- P(d);N_SPINP(b),OGATE::QAR(F)
- P(f);N_SPINP(b),OGATE::QAB(F)
- P(g);N_SPINP(b),OGATE::R(G)
- P(h);OGATE,XR(G)::R(H)
- P(h);OGATE::R(H)
- P(h);N_SPINP(b),OGATE::R(H)
- Tries
- Try
- R(G);
- Threat
- R(G)+K(A)
- Vars
- P(d);OGATE,XB(D)::QAR(F)
- P(d);N_SPINP(b),OGATE::QAR(F)
- P(f);N_SPINP(b),OGATE::QAB(F)
- P(h);N_SPINP(b),OGATE::R(H)
- Refutation
- P(g);N_SPINP(b)
- Try
- R(H);
- Threat
- R(H)+K(A)
- Vars
- P(d);OGATE,XB(D)::QAR(F)
- P(d);N_SPINP(b),OGATE::QAR(F)
- P(f);N_SPINP(b),OGATE::QAB(F)
- P(g);N_SPINP(b),OGATE::R(G)
- Refutation
- P(h);N_SPINP(b)
- Try
- Q(F);XP(d)
- Threat
- DUALS(3)
- Refutation
- P(f);XQ(F)
- Try
- Q(F);
- Threat
- QAB1(F),XP(b)
- Vars
- P(d);N_SPINP(b),OGATE::QAR(F)
- P(g);OGATE::R(G)
- P(h);OGATE::R(H)
- Refutation
- P(e);N_SPINP(b),XQ(F)
- Try
- Q(F);
- Threat
- QAR(F)
- Vars
- P(d);OGATE,XB(D)::QAR(F)
- P(d);N_SPINP(b),OGATE::QAR(F)
- P(g);N_SPINP(b),OGATE::R(G)
- P(h);N_SPINP(b),OGATE::R(H)
- Refutation
- P(f);N_SPINP(b)
- Try
- Actual
- K(A);S_FLIGHT
- Threat
- R(H)
- Vars
- P(d);OGATE,XB(D)::QAR(F)
- P(d);N_SPINP(b),OGATE::QAR(F)
- P(f);N_SPINP(b),OGATE::QAB(F)
- P(g);N_SPINP(b),OGATE::R(G)
- P(h);N_SPINP(b),OGATE::R(H)
Developed and maintained by Brian Stephenson.
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