MESON Chess Problem Database
Problem Display
PID: 45877 (2Qb4/3P3K/r1rR1P1n/3N2p1/N3kPB1/2Bp4/2PP4/1q3R2 w - - 0 1)
Blunar, Stefan
4th Prize, 01. Tungsram Cup, 1978
#2
13 + 8
| 5865 | Czech Album (1976-1978) | 1983 |
| 273 | Mat Plus | 1994 |
SOLUTION
- SOUND
- Sets
- 1...Qa2
- 2.Re1#
- 1...Qxc2
- 2.Re1#
- 1...Qe1
- 2.Rxe1#
- 1...Qb2
- 2.Re1#
- 1...Qb3
- 2.Re1#
- 1...Qb4
- 2.Re1#
- 1...Qb5
- 2.Re1#
- 1...Qb7
- 2.Re1#
- 1...Qb8
- 2.Re1#
- 1...Rxc3
- 2.Sdxc3#
- 1...Rc4
- 2.Qxc4#
- 1...Rc5
- 2.Sxc5#
- 1...Rb6
- 2.Sc5#
- 2.Qc4#
- 1...Rxd6
- 2.Qc4#
- 1...Ba5
- 2.Qe8#
- 1...Bb6
- 2.Qe8#
- 1...Bxf6
- 2.Sxf6#
- 1...Bc7
- 2.Qe8#
- 1...Sf5
- 2.Bf3#
- 1...gxf4
- 2.Rxf4#
- 1...Qa2
- Tries
- 1.Se3?
- threat
- 2.Rd4#
- 1...Rxa4
- 2.Qxc6#
- 1...Rxc3
- 2.Sxc3#
- 1...Rxd6
- 2.Sc5#
- 1...gxf4
- 2.Bf3#
- 1...Qb4
- 2.cxd3#
- 1...Qb6
- 2.cxd3#
- 1...Rc4
- 2.Qxc4#
- 1...Bb6
- 2.Qxc6#
- 2.Qe8#
- 1...Sf5
- 2.Bxf5#
- 1...Bxf6!
- threat
- 1.Sdb6?
- threat
- 2.Rd4#
- 2.Qxc6#
- 1...Qxf1
- 2.Rd4#
- 1...Qxb6
- 2.cxd3#
- 1...Rxa4
- 2.Qxc6#
- 1...Raxb6
- 2.Rd4#
- 1...Rxc3
- 2.Sxc3#
- 1...Rcxb6
- 2.Sc5#
- 2.Rd4#
- 2.Qc4#
- 1...Rxd6
- 2.Sc5#
- 1...Rxc8
- 2.Rd4#
- 2.Re6#
- 1...Bxb6
- 2.Qxc6#
- 2.Qe8#
- 1...Bxf6
- 2.Qxc6#
- 1...gxf4
- 2.Qxc6#
- 1...Qa2
- 2.Rd4#
- 2.cxd3#
- 1...Qb3
- 2.Rd4#
- 2.cxd3#
- 1...Qb4
- 2.Qxc6#
- 2.cxd3#
- 1...Qb5
- 2.Rd4#
- 1...Ra5
- 2.Rd4#
- 1...Rc4
- 2.Re6#
- 2.Qxc4#
- 1...Rc5
- 2.Sxc5#
- 2.Rd4#
- 1...Rc7
- 2.Rd4#
- 2.Re6#
- 1...Bc7
- 2.Rd4#
- 2.Qe8#
- 1...Sf5
- 2.Qxc6#
- 1...Sxg4!
- threat
- 1.Re6+?
- 1...Rxe6
- 2.Qc4#
- 1...Kxd5!
- 1...Rxe6
- 1.Qxa6?
- threat
- 2.Qxd3#
- 1...Qxc2
- 2.Re1#
- 1...Rxc3
- 2.Sdxc3#
- 1...Rxa6
- 2.Sc5#
- 1...dxc2
- 2.Qe2#
- 2.d3#
- 1...Qb5
- 2.Re1#
- 1...Rc4
- 2.Qxc4#
- 1...Qxf1!
- threat
- 1.Se3?
- Keys
- 1.Se7!
- threat
- 2.Rd4#
- 1...Rxa4
- 2.Qxc6#
- 1...Rxc3
- 2.Sxc3#
- 1...Rxd6
- 2.Sc5#
- 1...gxf4
- 2.Bf3#
- 1...Qb4
- 2.cxd3#
- 1...Qb6
- 2.cxd3#
- 1...Rc4
- 2.Qxc4#
- 1...Bb6
- 2.Qxc6#
- 1...Sf5
- 2.Bxf5#
- threat
- 1.Se7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 6
- ADDED MATES = 2
- REMOVED MATES = 12
- Sets
- Q(a);N_GUARD::R(A)
- Q(a);N_GUARD,XP(B)::R(A)
- Q(a);N_GUARD::R(A),XQ(a)
- Q(a);N_GUARD,P_PINP(K)::R(A)
- R(f);XB(D)::S(H),XR(f)
- R(f);OGATE::QAR2(M),XR(f)
- R(f);N_GUARD::S(E),XR(f)
- R(f);OGATE,XR(I)::QAR2(M)
- B(h);OGATE::QAR(M)
- B(h);XP(J)::S(H),XB(h)
- S(g);SBLOCK::B(G)
- P(d);OGATE,XP(F)::R1(A),XP(d)
- Tries
- Try
- S(H);
- Threat
- R1(I)
- Vars
- R(e);N_GUARD,XS(E)::QAB(M),XR(f)
- R(f);XB(D)::S(E),XR(f)
- R(f);N_GUARD,XR(I)::S(E)
- P(d);SBLOCK,XP(F)::B(G)
- Q(a);N_GUARD::P(B),XP(b)
- R(f);OGATE::QAR2(M),XR(f)
- S(g);N_GUARD::B(G),XS(g)
- Refutation
- B(h);XP(J)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(a);XR(A)::R1(I)
- Q(a);N_GUARD,XS(H)::P(B),XP(b)
- R(e);XS(E)::QAB(M),XR(f)
- R(e);XS(H)::R1(I)
- R(f);XB(D)::S(E),XR(f)
- R(f);N_GUARD,XR(I)::S(E)
- B(h);XP(J)::QAB(M),XR(f)
- P(d);XP(F)::QAB(M),XR(f)
- Q(a);::R1(I)
- R(e);::R1(I)
- S(g);::QAB(M),XR(f)
- Refutation
- S(g);XB(G)
- Try
- R(I);CHECK
- Vars
- R(f);OGATE,XR(I)::QAR2(M)
- Refutation
- K(c);S_FLIGHT,XS(H)
- Try
- Q(M);XR(e)
- Threat
- QAB1(M),XP(b)
- Vars
- Q(a);N_GUARD,XP(B)::R(A)
- R(f);XB(D)::S(H),XR(f)
- R(f);N_GUARD,XQ(M)::S(E)
- Q(a);N_GUARD::R(A)
- R(f);N_GUARD::QAR2(M),XR(f)
- Refutation
- Q(a);XR(A)
- Try
- Actual
- S(H);
- Threat
- R1(I)
- Vars
- R(e);N_GUARD,XS(E)::QAB(M),XR(f)
- R(f);XB(D)::S(E),XR(f)
- R(f);N_GUARD,XR(I)::S(E)
- P(d);SBLOCK,XP(F)::B(G)
- Q(a);N_GUARD::P(B),XP(b)
- R(f);OGATE::QAR2(M),XR(f)
- B(h);S_CUTR(e)::QAB(M),XR(f)
- S(g);N_GUARD::B(G),XS(g)
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