MESON Chess Problem Database
Problem Display
PID: 80454 (n6B/7B/4p3/1rR3p1/1p1NP3/1QpkN3/qn3P2/1b2K3 w - - 0 1)
Chepizhni, Viktor Ivanovich
2nd Prize, Mat Plus, 1997
#2
9 + 10
| 5929 | Mat Plus Special Issue | 2006 |
SOLUTION
- SOUND
- Sets
- 1...Bc2
- 2.Qxc2#
- 1...Bc2
- Tries
- 1.Se2?
- threat
- 2.Sc1#
- 2.e5#
- 1...Qa7
- 2.Sc1#
- 1...Rb7
- 2.Sc1#
- 1...e5!
- threat
- 1.Sxb5?
- threat
- 2.e5#
- 1...e5
- 2.Rd5#
- 1...Qa7!
- threat
- 1.Rd5?
- threat
- 2.e5#
- 1...Rxd5
- 2.exd5#
- 1...exd5
- 2.exd5#
- 1...Rb7
- 2.Sxe6#
- 1...e5
- 2.Sxb5#
- 1...Qa7!
- threat
- 1.Qd5?
- threat
- 2.e5#
- 1...Qxd5
- 2.exd5#
- 1...exd5
- 2.exd5#
- 1...Qa7
- 2.Sxe6#
- 1...e5
- 2.Sb3#
- 1...Rb7!
- threat
- 1.Se2?
- Keys
- 1.Sxe6!
- threat
- 2.e5#
- 1...Qa7
- 2.Qd5#
- 1...Rb7
- 2.Rd5#
- threat
- 1.Sxe6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- B(a);N_GUARD::QAB1(C),XB(a)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(b);::S(E)
- R(g);::S(E)
- Refutation
- P(i);
- Try
- S(E);XR(g)
- Threat
- B(H)+P(F)
- Vars
- P(i);N_GUARD::R(G)
- Refutation
- Q(b);
- Try
- R(G);
- Threat
- B(H)+P(F)
- Vars
- R(g);OGATE,XR(G)::B(H)+P(F),XR(g)
- P(i);OGATE,XR(G)::B(H)+P(F),XP(i)
- R(g);N_GUARD::R(G)+S(E),XP(i)
- P(i);N_GUARD::R(G)+S(E),XR(g)
- Refutation
- Q(b);
- Try
- Q(C);N_PINP(d)
- Threat
- B(H)+P(F)
- Vars
- Q(b);OGATE,XQ(C)::B(H)+P(F),XQ(b)
- P(i);OGATE,XQ(C)::B(H)+P(F),XP(i)
- Q(b);N_GUARD::QAR(C)+S(E),XP(i)
- P(i);N_GUARD::QAR(C)+S(E)
- Refutation
- R(g);
- Try
- Actual
- S(E);XP(i)
- Threat
- B(H)+P(F)
- Vars
- Q(b);N_GUARD::QAR2(C)
- R(g);N_GUARD::R(G)
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