MESON Chess Problem Database
Problem Display
PID: 84178 (6BB/8/K1RNrrb1/1Qpk2N1/5P2/bP1qp3/1P1R4/8 w - - 0 1)
Cheylan, Yves
The Problemist, 1973
#2
11 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kd4
- 2.Qc4#
- 1...Rxf4
- 2.Bxe6#
- 1...Rf5
- 2.Bxe6#
- 2.Rxd3#
- 1...Rf8
- 2.Bxe6#
- 1...Bh5
- 2.Rxd3#
- 1...Bf7
- 2.Rxd3#
- 1...Be8
- 2.Rxd3#
- 1...Kd4
- Tries
- 1.Kb6?
- threat
- 2.Qc4#
- 1...Kd4
- 2.Qc4#
- 1...Rxf4
- 2.Bxe6#
- 1...exd2!
- threat
- 1.Sc4?
- threat
- 2.Rd6#
- 1...Rf7
- 2.Sb6#
- 1...Bf7
- 2.Rxd3#
- 1...Kd4!
- threat
- 1.Sde4?
- threat
- 2.Rxd3#
- 2.Rd6#
- 1...Kd4
- 2.Rxd3#
- 2.Qxd3#
- 2.Qc4#
- 1...Qxd2
- 2.Rd6#
- 1...Bxb2
- 2.Rd6#
- 1...exd2
- 2.Rd6#
- 1...Qd4
- 2.Sc3#
- 2.Sxf6#
- 2.Rd6#
- 1...Rf7
- 2.Sc3#
- 2.Rxd3#
- 1...Bf7
- 2.Rxd3#
- 1...Bxe4!
- threat
- 1.Sf5?
- threat
- 2.Rxd3#
- 2.Rd6#
- 1...Qxd2
- 2.Rd6#
- 1...Rxf5
- 2.Bxe6#
- 2.Rxd3#
- 1...Bxb2
- 2.Rd6#
- 1...exd2
- 2.Rd6#
- 1...Qd4
- 2.Sxe3#
- 2.Se7#
- 2.Rxd4#
- 2.Rd6#
- 1...Rf7
- 2.Rxd3#
- 1...Bf7
- 2.Rxd3#
- 1...Bxf5!
- threat
- 1.Sb7?
- threat
- 2.Rd6#
- 1...Kd4
- 2.Qc4#
- 1...Bf7
- 2.Rxd3#
- 1...Rf7!
- threat
- 1.Se8?
- threat
- 2.Rd6#
- 1...Kd4
- 2.Qc4#
- 1...Bxe8
- 2.Rxd3#
- 1...Bf7
- 2.Rxd3#
- 1...Rf7!
- threat
- 1.Bxe6+?
- 1...Kd4
- 2.Sf3#
- 2.Bxf6#
- 2.Qc4#
- 1...Rxe6!
- 1...Kd4
- 1.Bxf6?
- threat
- 2.Bxe6#
- 1...Bf7
- 2.Rxd3#
- 1...Bf5!
- threat
- 1.Rb6?
- threat
- 2.Qc4#
- 1...Kd4
- 2.Qc4#
- 1...Rxf4
- 2.Bxe6#
- 1...exd2!
- threat
- 1.Kb6?
- Keys
- 1.Sc8!
- threat
- 2.Rd6#
- 1...Kd4
- 2.Qc4#
- 1...Rf7
- 2.Sb6#
- 1...Bf7
- 2.Rxd3#
- threat
- 1.Sc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- K(e);N_SPINP(d),N_SPINR(f),P-FLIGHT,P_SPINR(g)::QAR1(E)
- R(g);N_GUARD,XP(D)::B(J),XR(f)
- R(g);N_GUARD::B(J),XR(f)
- B(h);N_GUARD::R(B),XQ(b)
- B(h);N_GUARD,N_SPINR(f)::R(B),XQ(b)
- Tries
- Try
- K(G);N_SPINQ(E),P-FLIGHT
- Threat
- QAB1(E)
- Vars
- K(e);N_SPINP(d),N_SPINR(f),P-FLIGHT,P_SPINR(g)::QAR1(E)
- R(g);N_GUARD,XP(D)::B(J),XR(f)
- Refutation
- P(c);N_SPINQ(b),XR(B)
- Try
- S(I);N_SPINQ(E),P_SPINR(H)
- Threat
- R1(H)
- Vars
- R(g);N_SPINR(f)::S(I)
- B(h);N_GUARD,N_SPINR(f)::R(B),XQ(b)
- Refutation
- K(e);N_SPINP(d),N_SPINR(f),P-FLIGHT,P_SPINR(g)
- Try
- S(I);P_SPINR(H)
- Threat
- DUALS(2)
- Vars
- Q(b);N_PINQ(E),N_SPINQ(b),XR(B)::R1(H)
- B(a);XP(A)::R1(H)
- P(c);N_SPINQ(b),XR(B)::R1(H)
- B(h);N_SPINR(f)::R(B),XQ(b)
- Refutation
- B(h);XS(I)
- Try
- S(I);P_SPINR(H)
- Threat
- DUALS(2)
- Vars
- Q(b);N_PINQ(E),N_SPINQ(b),XR(B)::R1(H)
- B(a);XP(A)::R1(H)
- P(c);N_SPINQ(b),XR(B)::R1(H)
- R(g);N_SPINR(f)::R(B),XQ(b)
- B(h);N_SPINR(f)::R(B),XQ(b)
- Refutation
- B(h);XS(I)
- Try
- S(I);P_SPINR(H)
- Threat
- R1(H)
- Vars
- K(e);N_SPINP(d),N_SPINR(f),P-FLIGHT,P_SPINR(g)::QAR1(E)
- B(h);N_GUARD,N_SPINR(f)::R(B),XQ(b)
- Refutation
- R(g);N_SPINR(f)
- Try
- S(I);P_SPINR(H)
- Threat
- R1(H)
- Vars
- K(e);N_SPINP(d),N_SPINR(f),P-FLIGHT,P_SPINR(g)::QAR1(E)
- B(h);N_GUARD,XS(I)::R(B),XQ(b)
- B(h);N_GUARD,N_SPINR(f)::R(B),XQ(b)
- Refutation
- R(g);N_SPINR(f)
- Try
- B(J);CHECK,XR(f)
- Refutation
- R(g);XB(J)
- Try
- B(K);XR(g)
- Threat
- B(J),XR(f)
- Vars
- B(h);N_GUARD,N_SPINR(f)::R(B),XQ(b)
- Refutation
- B(h);
- Try
- R(H);
- Threat
- QAB1(E)
- Vars
- K(e);N_SPINP(d),N_SPINR(f),P-FLIGHT,P_SPINR(g)::QAR1(E)
- R(g);N_GUARD,XP(D)::B(J),XR(f)
- Refutation
- P(c);N_SPINQ(b),XR(B)
- Try
- Actual
- S(I);P_SPINR(H)
- Threat
- R1(H)
- Vars
- K(e);N_SPINP(d),N_SPINR(f),P-FLIGHT,P_SPINR(g)::QAR1(E)
- R(g);N_SPINR(f)::S(I)
- B(h);N_GUARD,N_SPINR(f)::R(B),XQ(b)
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