MESON Chess Problem Database
Problem Display
PID: 161705 (q6n/N2rr3/pQbP1R2/B3k2N/n3P1P1/1B1P4/2R5/1K6 w - - 0 1)
Dujardin, Paul
diagrammes, 1993
#2
12 + 8
| 15601 | Albrecht-Leiss-Degener Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qb8
- 2.Sxc6#
- 1...Qd8
- 2.Sxc6#
- 1...Qe8
- 2.Sxc6#
- 1...Qf8
- 2.Sxc6#
- 1...Qg8
- 2.Sxc6#
- 1...Rxd6
- 2.Rf5#
- 1...Rb7
- 2.Sxc6#
- 1...Re6
- 2.Rxe6#
- 1...Rf7
- 2.Re6#
- 1...Rg7
- 2.Re6#
- 1...Rh7
- 2.Re6#
- 1...Bxe4
- 2.d4#
- 1...Bb5
- 2.Rf5#
- 1...Bb7
- 2.Rf5#
- 1...Sb2
- 2.Bc3#
- 1...Sc3+
- 2.Bxc3#
- 1...Sc5
- 2.Bc3#
- 1...Sxb6
- 2.Bc3#
- 1...Qb8
- Tries
- 1.Sb5?
- threat
- 2.Rf5#
- 2.Qd4#
- 1...Sc3+
- 2.Bxc3#
- 1...Rxd6
- 2.Rf5#
- 1...Bxe4
- 2.Qd4#
- 2.d4#
- 1...Bxb5
- 2.Rf5#
- 1...Sxb6
- 2.Bc3#
- 2.Rf5#
- 1...Qa7
- 2.Rf5#
- 1...Qf8
- 2.Qd4#
- 1...Rf7
- 2.Re6#
- 2.Qd4#
- 1...Bd5
- 2.Qd4#
- 1...Sc5
- 2.Bc3#
- 2.Rf5#
- 1...axb5!
- threat
- 1.Bd5?
- threat
- 2.d4#
- 1...Sc3+
- 2.Bxc3#
- 1...Sxb6
- 2.Bc3#
- 1...Re6
- 2.Rxe6#
- 1...Sc5
- 2.Bc3#
- 2.Qb2#
- 1...Bxd5!
- threat
- 1.Be1?
- threat
- 2.Bg3#
- 1...Sc3+
- 2.Bxc3#
- 1...Sxb6
- 2.Bc3#
- 1...Sc5
- 2.Bc3#
- 1...Sg6!
- threat
- 1.Bd2?
- threat
- 2.Bf4#
- 1...Sc3+
- 2.Bxc3#
- 1...Sxb6
- 2.Bc3#
- 1...Sc5
- 2.Bc3#
- 1...Sg6!
- threat
- 1.Bb4?
- threat
- 2.Rf5#
- 1...Sc3+
- 2.Bxc3#
- 1...Bxe4
- 2.d4#
- 1...Sxb6
- 2.Bc3#
- 1...Sc5
- 2.Bc3#
- 1...Qf8
- 2.Sxc6#
- 1...Rf7
- 2.Re6#
- 1...Bd5!
- threat
- 1.Rcf2?
- threat
- 2.R2f5#
- 1...Sc3+
- 2.Bxc3#
- 1...Sxb6
- 2.Bc3#
- 1...Re6
- 2.Rxe6#
- 1...Sc5
- 2.Bc3#
- 1...Bxe4!
- threat
- 1.Rc5+?
- 1...Kd4
- 2.Rd5#
- 1...Sxc5
- 2.Bc3#
- 1...Bd5!
- 1...Kd4
- 1.Rxc6?
- threat
- 2.Rf5#
- 1...Sc3+
- 2.Bxc3#
- 1...Qxc6
- 2.Sxc6#
- 1...Sxb6
- 2.Bc3#
- 1...Sc5
- 2.Bc3#
- 2.Qxc5#
- 1...Rf7
- 2.Re6#
- 1...Qf8!
- threat
- 1.Qe3?
- threat
- 2.d4#
- 1...Sc3+
- 2.Bxc3#
- 1...Rxd6
- 2.Rf5#
- 1...Re6
- 2.Rxe6#
- 1...Qxa7!
- threat
- 1.Qc5+?
- 1...Sxc5
- 2.Bc3#
- 1...Bd5!
- 1...Sxc5
- 1.Qb4?
- threat
- 2.Rf5#
- 1...Sc3+
- 2.Qxc3#
- 1...Bxe4
- 2.d4#
- 1...Qf8
- 2.Sxc6#
- 1...Rf7
- 2.Re6#
- 1...Sc5
- 2.Qc3#
- 1...Bd5!
- threat
- 1.Sb5?
- Keys
- 1.Re2!
- threat
- 2.d4#
- 1...Sc3+
- 2.Bxc3#
- 1...Rxd6
- 2.Rf5#
- 1...Bxe4
- 2.Rf5#
- 1...Sxb6
- 2.Bc3#
- 1...Re6
- 2.Rxe6#
- 1...Sc5
- 2.Bc3#
- threat
- 1.Re2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 12
- Sets
- Q(g);N_GUARD::S(L),XB(d)
- R(e);SBLOCK,XP(J)::R1(K)
- R(e);S_CUTQ(g)::S(L),XB(d)
- R(f);N_GUARD::R1(K),XR(f)
- R(f);N_GUARD::R1(K)
- B(d);SBLOCK,XP(E)::P(D)
- B(d);::R1(K)
- S(a);N_GUARD::B(G)
- S(a);CHECK,N_GUARD::B(G),XS(a)
- S(a);N_GUARD,XQ(I)::B(G)
- Tries
- Try
- S(L);
- Threat
- DUALS(2)
- Vars
- S(a);CHECK,N_GUARD::B(G),XS(a)
- R(e);XP(J)::R1(K)
- B(d);XS(L)::R1(K)
- Q(g);::R1(K)
- Q(g);::QAB1(I)
- B(d);::QAB1(I)
- Refutation
- P(c);XS(L)
- Try
- B(C);
- Threat
- P(D)
- Vars
- S(a);CHECK,N_GUARD::B(G),XS(a)
- S(a);N_GUARD,XQ(I)::B(G)
- R(f);N_GUARD::R1(K),XR(f)
- Refutation
- B(d);XB(C)
- Try
- B(G);
- Threat
- B(G)
- Vars
- S(a);CHECK,N_GUARD::B(G),XS(a)
- S(a);N_GUARD,XQ(I)::B(G)
- S(a);N_GUARD::B(G)
- Refutation
- S(h);
- Try
- B(G);
- Threat
- B(G)
- Vars
- S(a);CHECK,N_GUARD::B(G),XS(a)
- S(a);N_GUARD,XQ(I)::B(G)
- S(a);N_GUARD::B(G)
- Refutation
- S(h);
- Try
- B(G);
- Threat
- R1(K)
- Vars
- S(a);CHECK,N_GUARD::B(G),XS(a)
- B(d);SBLOCK,XP(E)::P(D)
- S(a);N_GUARD,XQ(I)::B(G)
- S(a);N_GUARD::B(G)
- Q(g);N_GUARD::S(L),XB(d)
- R(f);N_GUARD::R1(K)
- Refutation
- B(d);
- Try
- R(B);
- Threat
- R1(B)
- Vars
- S(a);CHECK,N_GUARD::B(G),XS(a)
- S(a);N_GUARD,XQ(I)::B(G)
- R(f);N_GUARD::R1(K),XR(f)
- S(a);N_GUARD::B(G)
- Refutation
- B(d);P_PINP(D),XP(E)
- Try
- R(B);CHECK
- Vars
- K(b);S_FLIGHT::QAB(I)+R(B),DCHECK
- S(a);XR(B)::B(G)
- Refutation
- B(d);P_SPINB(d)
- Try
- R(B);XB(d)
- Threat
- R1(K)
- Vars
- S(a);CHECK,N_GUARD::B(G),XS(a)
- Q(g);XR(B)::S(L),XQ(g)
- S(a);N_GUARD,XQ(I)::B(G)
- R(f);N_GUARD::R1(K)
- Refutation
- Q(g);
- Try
- Q(I);
- Threat
- P(D)
- Vars
- S(a);CHECK,N_GUARD::B(G),XS(a)
- R(e);SBLOCK,XP(J)::R1(K)
- R(f);N_GUARD::R1(K),XR(f)
- Refutation
- Q(g);XS(L)
- Try
- Q(I);CHECK
- Vars
- S(a);XQ(I)::B(G)
- Refutation
- B(d);P_SPINB(d)
- Try
- Q(I);
- Threat
- R1(K)
- Vars
- S(a);CHECK,N_GUARD::QAB(I),XS(a)
- B(d);SBLOCK,XP(E)::P(D)
- Q(g);N_GUARD::S(L),XB(d)
- R(f);N_GUARD::R1(K)
- S(a);N_GUARD::QAB(I)
- Refutation
- B(d);
- Try
- Actual
- R(B);
- Threat
- P(D)
- Vars
- S(a);CHECK,N_GUARD::B(G),XS(a)
- R(e);SBLOCK,XP(J)::R1(K)
- B(d);P_PINP(D),P_SPINB(d),XP(E)::R1(K)
- S(a);N_GUARD,XQ(I)::B(G)
- R(f);N_GUARD::R1(K),XR(f)
- S(a);N_GUARD::B(G)
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