MESON Chess Problem Database
Problem Display
PID: 255843 (6QK/2n4P/5R2/2p1p2P/3PkB2/1n5R/2P1N1P1/q2N2b1 w - - 0 1)
Mucha, Boris I
Skakbladet, 1984
#2
12 + 7
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
| 5454 | Near Snap | 2021 |
| 3713 | Snap | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qc3
- 2.Sdxc3#
- 1...Qxd4
- 2.Sg3#
- 1...Qb1
- 2.Sdc3#
- 1...Qc1
- 2.Sdc3#
- 1...Qa2
- 2.Sdc3#
- 1...Qa3
- 2.Sdc3#
- 1...Qa4
- 2.Sdc3#
- 1...Qa6
- 2.Sdc3#
- 1...Qa7
- 2.Sdc3#
- 1...Qa8
- 2.Sdc3#
- 1...Bf2
- 2.Sxf2#
- 1...Bh2
- 2.Sf2#
- 2.Re3#
- 1...Be3
- 2.Rxe3#
- 1...Bxd4
- 2.Sg3#
- 1...Sxd4
- 2.Sg3#
- 1...Sd5
- 2.Qg6#
- 1...Sa6
- 2.Qa8#
- 1...cxd4
- 2.Sg3#
- 1...exd4
- 2.Sg3#
- 1...exf4
- 2.Rxf4#
- 1...Qc3
- Tries
- 1.Se3?
- threat
- 2.Qg6#
- 1...Bxe3
- 2.Rxe3#
- 1...Sxd4
- 2.Sg3#
- 1...Qa8!
- threat
- 1.Sec3+?
- 1...Kxd4
- 2.Rd3#
- 1...Qxc3!
- 1...Kxd4
- 1.Rd3?
- threat
- 2.Sg3#
- 1...exf4
- 2.Rxf4#
- 1...Bf2
- 2.Sxf2#
- 1...Bh2
- 2.Sf2#
- 2.Re3#
- 1...Se6!
- threat
- 1.Rh4?
- threat
- 2.Bc1#
- 2.Bd2#
- 2.Bh2#
- 2.Be3#
- 2.Bg3#
- 2.Bxe5#
- 2.Bg5#
- 2.Bh6#
- 1...Qxd4
- 2.Sg3#
- 2.Bc1#
- 2.Bd2#
- 2.Bh2#
- 2.Be3#
- 2.Bg3#
- 2.Bg5#
- 2.Bh6#
- 1...Qxd1
- 2.Bc1#
- 2.Bd2#
- 2.Bg5#
- 2.Bh6#
- 1...Bxd4
- 2.Sg3#
- 2.Bc1#
- 2.Bd2#
- 2.Bh2#
- 2.Be3#
- 2.Bg3#
- 2.Bg5#
- 2.Bh6#
- 1...Sxd4
- 2.Sg3#
- 2.Bc1#
- 2.Bd2#
- 2.Bh2#
- 2.Be3#
- 2.Bg3#
- 2.Bg5#
- 2.Bh6#
- 1...cxd4
- 2.Sg3#
- 2.Bc1#
- 2.Bd2#
- 2.Bh2#
- 2.Be3#
- 2.Bg3#
- 2.Bg5#
- 2.Bh6#
- 1...exd4
- 2.Sg3#
- 2.Bh2#
- 2.Bg3#
- 2.Bd6#
- 2.Bxc7#
- 1...exf4
- 2.Rhxf4#
- 2.Rfxf4#
- 1...Qc1
- 2.Sdc3#
- 2.Bxc1#
- 2.Bd2#
- 2.Be3#
- 1...Bf2
- 2.Sxf2#
- 2.Bg3#
- 1...Bh2
- 2.Sf2#
- 2.Bxh2#
- 2.Bg3#
- 1...Be3
- 2.Bxe3#
- 1...Sc1
- 2.Bxc1#
- 2.Bd2#
- 2.Bh2#
- 2.Be3#
- 2.Bg3#
- 2.Bxe5#
- 2.Bg5#
- 2.Bh6#
- 1...Sd2
- 2.Bxd2#
- 2.Bh2#
- 2.Be3#
- 2.Bg3#
- 2.Bxe5#
- 2.Bg5#
- 2.Bh6#
- 1...Sd5
- 2.Qg6#
- 1...Se6!
- threat
- 1.Qxb3?
- threat
- 2.Qf3#
- 1...Qc3
- 2.Sdxc3#
- 1...Qa3
- 2.Sdc3#
- 1...Be3
- 2.Rxe3#
- 1...Qa8+!
- threat
- 1.Qc4?
- threat
- 2.Sg3#
- 1...exf4
- 2.Rxf4#
- 1...Qc3
- 2.Sdxc3#
- 2.Sexc3#
- 1...Bf2
- 2.Sxf2#
- 1...Bh2
- 2.Sf2#
- 2.Re3#
- 1...Qa8+!
- threat
- 1.Qd8?
- threat
- 2.Sg3#
- 1...exf4
- 2.Rxf4#
- 1...Qc3
- 2.Sdxc3#
- 2.Sexc3#
- 1...Bf2
- 2.Sxf2#
- 1...Bh2
- 2.Sf2#
- 2.Re3#
- 1...Sd5!
- threat
- 1.c4?
- threat
- 2.Qg6#
- 1...Qa8
- 2.Sdc3#
- 1...Sxd4!
- threat
- 1.Se3?
- Keys
- 1.Rf5!
- threat
- 2.Rxe5#
- 1...Kxf5
- 2.Qg6#
- 1...Qxd4
- 2.Sg3#
- 1...Bxd4
- 2.Sg3#
- 1...exd4
- 2.Sg3#
- 2.Re5#
- 1...exf4
- 2.Rxf4#
- 2.Re5#
- threat
- 1.Rf5!
Anticipated by 254421(1983), 173790(1984)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 17
- Sets
- Q(a);N_GUARD::S(A),XQ(a)
- Q(a);SBLOCK,XP(F)::S(C)
- Q(a);N_GUARD::S(A)
- Q(a);N_GUARD,P_PINQ(K)::S(A)
- B(b);N_GUARD::S(A),XB(b)
- B(b);N_GUARD::R1(E),XB(b)
- B(b);SBLOCK,XP(F)::S(C)
- S(c);SBLOCK,XP(F)::S(C)
- S(g);SBLOCK::QAB(K)
- S(g);N_GUARD,S_CUTQ(a)::QAB(K)
- P(e);SBLOCK,XP(F)::S(C)
- P(f);SBLOCK,XP(F)::S(C)
- P(f);OGATE,XB(G)::R1(I),XP(f)
- Tries
- Try
- S(A);
- Threat
- QAB(K)
- Vars
- B(b);OGATE,XS(A)::R1(E),XB(b)
- S(c);SBLOCK,XP(F)::S(C)
- Refutation
- Q(a);P_PINQ(K)
- Try
- S(C);CHECK
- Vars
- K(d);P-FLIGHT,S_CUTQ(a),XP(F)::R1(E)
- Refutation
- Q(a);XS(C)
- Try
- R(E);
- Threat
- S(C)
- Vars
- P(f);OGATE,XB(G)::R1(I),XP(f)
- B(b);N_GUARD::S(A),XB(b)
- Refutation
- S(g);
- Try
- R(E);
- Threat
- DUALS(8)
- Vars
- B(b);::R(E)+B(G),XB(b)
- S(g);SBLOCK::QAB(K)
- Refutation
- S(g);
- Try
- Q(K);XS(c)
- Threat
- QAB1(K)
- Vars
- Q(a);N_GUARD::S(A),XQ(a)
- Q(a);N_GUARD::S(A)
- B(b);N_GUARD::R1(E),XB(b)
- Refutation
- Q(a);CHECK
- Try
- Q(K);
- Threat
- S(C)
- Vars
- P(f);OGATE,XB(G)::R1(I),XP(f)
- B(b);N_GUARD::S(A),XB(b)
- Refutation
- Q(a);CHECK
- Try
- Q(K);
- Threat
- S(C)
- Vars
- P(f);OGATE,XB(G)::R1(I),XP(f)
- B(b);N_GUARD::S(A),XB(b)
- Refutation
- S(g);
- Try
- P(B);
- Threat
- QAB(K)
- Vars
- Q(a);N_GUARD,P_PINQ(K)::S(A)
- Refutation
- S(c);XP(F)
- Try
- Actual
- R(I);
- Threat
- R1(I),XP(f)
- Vars
- K(d);OGATEB,S_FLIGHT,XR(I)::QAB1(K)
- Q(a);SBLOCK,XP(F)::S(C)
- B(b);SBLOCK,XP(F)::S(C)
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