MESON Chess Problem Database
Problem Display
PID: 114852 (8/1qP2n2/N2Np3/2BkP1p1/BP2R1Qp/4p2r/K1RPr3/6b1 w - - 0 1)
Apro, Laszlo
Canadian Chess Chat, 1980
#2
12 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qc6
- 2.Bb3#
- 1...Qxb4
- 2.Sxb4#
- 1...Qxc7
- 2.Sxc7#
- 1...Sxe5
- 2.Rd4#
- 1...Qc6
- Tries
- 1.Sf5?
- threat
- 2.Se7#
- 1...Qxc7
- 2.Sxc7#
- 1...exf5!
- threat
- 1.Sc8?
- threat
- 2.Se7#
- 1...Qxc7
- 2.Sxc7#
- 1...Qxc8!
- threat
- 1.Bxe3?
- threat
- 2.Bb3#
- 2.Rc5#
- 1...Qxa6
- 2.Rc5#
- 1...Qxb4
- 2.Sxb4#
- 2.Bc6#
- 1...Qxc7
- 2.Sxc7#
- 1...Rxd2
- 2.Bb3#
- 2.Rxd2#
- 1...Rexe3
- 2.Rc5#
- 1...Rhxe3
- 2.Rc5#
- 1...Bxe3
- 2.Bb3#
- 1...Sxe5
- 2.Rd4#
- 1...Sxd6
- 2.Rc5#
- 1...Qc6
- 2.Bxc6#
- 1...Qb6
- 2.Bb3#
- 1...Qa7
- 2.Bb3#
- 2.Bc6#
- 1...Qb5!
- threat
- 1.Bb6?
- threat
- 2.Bb3#
- 2.Rc5#
- 1...Qxa6
- 2.Rc5#
- 1...Qxb6
- 2.Bb3#
- 1...Qxc7
- 2.Sxc7#
- 1...Rxd2
- 2.Bb3#
- 1...Sxe5
- 2.Rd4#
- 1...Sxd6
- 2.Rc5#
- 1...Qc6
- 2.Bxc6#
- 1...exd2!
- threat
- 1.Rec4?
- threat
- 2.Qd4#
- 2.Qe4#
- 1...Kxe5
- 2.Qd4#
- 1...Rxd2
- 2.Qe4#
- 1...Sxd6
- 2.Qd4#
- 1...Qb5
- 2.Qe4#
- 1...exd2!
- threat
- 1.c8Q?
- threat
- 2.Bb3#
- 2.Qgxe6#
- 2.Qcxe6#
- 2.Qxb7#
- 1...Qxa6
- 2.Qgxe6#
- 2.Qcxe6#
- 1...Qxb4
- 2.Sxb4#
- 2.Sc7#
- 2.Bc6#
- 2.Qgxe6#
- 2.Qcxe6#
- 2.Qc6#
- 1...Sxe5
- 2.Rd4#
- 2.Qgxe6#
- 2.Qcxe6#
- 1...Sxd6
- 2.Qcxe6#
- 1...exd2
- 2.Qgxe6#
- 2.Qcxe6#
- 2.Qxb7#
- 1...Qb5
- 2.Qgxe6#
- 1...Qc6
- 2.Bb3#
- 2.Bxc6#
- 2.Qgxe6#
- 2.Qcxe6#
- 2.Qxc6#
- 1...Qa8
- 2.Sc7#
- 2.Bb3#
- 2.Qgxe6#
- 2.Qcxe6#
- 2.Qxa8#
- 1...Qb6
- 2.Bb3#
- 2.Qgxe6#
- 2.Qcxe6#
- 1...Qa7
- 2.Bb3#
- 2.Bc6#
- 2.Qgxe6#
- 2.Qcxe6#
- 2.Qc6#
- 1...Qc7
- 2.Sxc7#
- 2.Qgxe6#
- 2.Qcxe6#
- 1...Qd7
- 2.Bb3#
- 1...Qe7
- 2.Bb3#
- 2.Bc6#
- 2.Qc6#
- 1...Qb8
- 2.Bb3#
- 2.Bc6#
- 2.Qgxe6#
- 2.Qcxe6#
- 2.Qc6#
- 1...Sd8
- 2.Bb3#
- 1...Qxc8!
- threat
- 1.Sf5?
- Keys
- 1.Rxe3!
- threat
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Qxa6
- 2.Qd4#
- 2.Qe4#
- 1...Qxb4
- 2.Sxb4#
- 1...Rxd2
- 2.Rxd2#
- 2.Qc4#
- 2.Qe4#
- 1...Rexe3
- 2.Qd4#
- 1...Rhxe3
- 2.Qd4#
- 1...Bxe3
- 2.Qe4#
- 1...Sxe5
- 2.Qd4#
- 2.Qe4#
- 1...Sxd6
- 2.Qd4#
- 1...Qb5
- 2.Qe4#
- threat
- 1.Rxe3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 3
- Sets
- Q(i);SBLOCK::B(D)
- Q(i);XP(E)::S(J),XQ(i)
- Q(i);XP(L)::S(J),XQ(i)
- S(j);SBLOCK,XP(I)::R1(F)
- Tries
- Try
- S(K);
- Threat
- S(K)
- Vars
- Q(i);XP(L)::S(J),XQ(i)
- Refutation
- P(h);XS(K)
- Try
- S(K);
- Threat
- S(K)
- Vars
- Q(i);XP(L)::S(J),XQ(i)
- Refutation
- Q(i);XS(K)
- Try
- B(H);XP(c)
- Threat
- DUALS(2)
- Vars
- Q(i);P_PINB(D),XS(J)::R1(B)
- Q(i);XP(L)::S(J),XQ(i)
- R(b);XB(H)::R1(B)
- R(d);XB(H)::R1(B)
- B(a);XB(H)::B(D)
- S(j);SBLOCK,XP(I)::R1(F)
- S(j);XS(K)::R1(B)
- Q(i);N_GUARD::B(D),XQ(i)
- Q(i);::B(D)
- Refutation
- Q(i);
- Try
- B(H);
- Threat
- DUALS(2)
- Vars
- Q(i);P_PINB(D),XS(J)::R1(B)
- Q(i);XB(H)::B(D)
- Q(i);XP(L)::S(J),XQ(i)
- R(b);P_PINR(B),XP(C)::B(D)
- S(j);SBLOCK,XP(I)::R1(F)
- S(j);XS(K)::R1(B)
- Q(i);N_GUARD::B(D),XQ(i)
- Refutation
- P(c);XP(C)
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- K(f);P-FLIGHT,XP(I)::QAB1(G)
- R(b);P_PINR(B),XP(C)::QAB1(G)
- S(j);XS(K)::QAR1(G)
- Q(i);::QAB1(G)
- Refutation
- P(c);XP(C)
- Try
- P(L);
- Threat
- DUALS(4)
- Vars
- S(j);XS(K)::QAB1(L),XP(h)
- Q(i);::QAB1(G),XP(h)
- Q(i);::B(D)
- S(j);::B(D)
- Refutation
- Q(i);XQ(L)
- Try
- Actual
- R(F);XP(c)
- Threat
- DUALS(3)
- Vars
- Q(i);XP(E)::S(J),XQ(i)
- R(b);XR(F)::QAR1(G)
- R(d);XR(F)::QAR1(G)
- B(a);XR(F)::QAB1(G)
- S(j);XS(K)::QAR1(G)
- Q(i);::QAB1(G)
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