MESON Chess Problem Database
Problem Display
PID: 177863 (3q4/2n1B2p/3p4/2p2pP1/5kNK/3PR2p/1QN2p2/2n2r2 w - - 0 1)
Zelepukhin, Nikolai Pavlovich
Sahs (Latvia), 1982
#2
8 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qa8
- 2.Bxd6#
- 1...Qb8
- 2.Bxd6#
- 1...Qc8
- 2.Bxd6#
- 1...Qg8
- 2.Bxd6#
- 1...c4
- 2.Qd4#
- 1...fxg4
- 2.Qf6#
- 1...d5
- 2.Qe5#
- 1...Qa8
- Tries
- 1.Sh2?
- threat
- 2.Rf3#
- 1...Qa8
- 2.Bxd6#
- 1...Sxd3!
- threat
- 1.Se5?
- threat
- 2.Rf3#
- 1...Sxd3
- 2.Sxd3#
- 1...dxe5
- 2.Qxe5#
- 1...Qa8!
- threat
- 1.Sf6?
- threat
- 2.Sh5#
- 1...h5
- 2.Sxh5#
- 1...Qe8!
- threat
- 1.Re4+?
- 1...fxe4
- 2.Qf6#
- 1...Kf3!
- 1...fxe4
- 1.Qb4+?
- 1...c4
- 2.Qxc4#
- 1...cxb4!
- 1...c4
- 1.Sh2?
- Keys
- 1.Sd4!
- threat
- 2.Rf3#
- 1...Sxd3
- 2.Se2#
- 1...cxd4
- 2.Qxd4#
- 1...fxg4
- 2.Re4#
- 1...Qa8
- 2.Bxd6#
- threat
- 1.Sd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- Q(k);N_GUARD::B(H),XP(h)
- P(f);N_GUARD::QAR2(A)
- P(g);OGATEB,XS(E)::QAR2(A)
- P(h);N_GUARD::QAB1(A)
- Tries
- Try
- S(E);
- Threat
- R1(D)
- Vars
- Q(k);N_GUARD::B(H),XP(h)
- Refutation
- S(a);XP(C)
- Try
- S(E);
- Threat
- R1(D)
- Vars
- S(a);XP(C)::S(E),XS(a)
- P(h);OGATE,XS(E)::QAB1(A),XP(h)
- Refutation
- Q(k);
- Try
- S(E);
- Threat
- S(E)
- Vars
- P(j);::S(E),XP(j)
- Refutation
- Q(k);
- Try
- R(D);CHECK
- Vars
- P(g);XR(D)::QAR2(A)
- Refutation
- K(e);P-FLIGHT
- Try
- Q(A);CHECK
- Vars
- P(f);P_SPINP(f)::QAR(A),XP(f)
- Refutation
- P(f);XQ(A)
- Try
- Actual
- S(B);
- Threat
- R1(D)
- Vars
- S(a);N_GUARD,XP(C)::S(B)
- P(f);OGATE,XS(B)::QAR2(A),XP(f)
- P(g);N_GUARD,XS(E)::R1(D)
- Q(k);N_GUARD::B(H),XP(h)
Developed and maintained by Brian Stephenson.
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