MESON Chess Problem Database
Problem Display
PID: 142809 (7b/3q1Rr1/6Q1/5R1p/b1BPk2P/1nP3BK/2N5/4nN2 w - - 0 1)
Fleck, Ferenc
1st HM., BCF 060. Ty., 1948-1949
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Qb5
- 2.Rf4#
- 2.Re5#
- 1...Qxf5+
- 2.Qxf5#
- 1...Qc6
- 2.Rf4#
- 2.Re5#
- 1...Qe6
- 2.Qxe6#
- 1...Qe8
- 2.Rf4#
- 2.Re5#
- 1...Qxd4
- 2.Re5#
- 1...Qd5
- 2.Rf4#
- 2.Re5#
- 1...Qd6
- 2.Rf4#
- 2.Re5#
- 1...Qa7
- 2.Rf4#
- 2.Re5#
- 2.Qe6#
- 1...Qb7
- 2.Rf4#
- 2.Re5#
- 2.Qe6#
- 1...Qc7
- 2.Rf4#
- 2.Re5#
- 1...Qe7
- 2.Rf4#
- 2.Re5#
- 1...Qxf7
- 2.Rf4#
- 1...Qd8
- 2.Rf4#
- 2.Re5#
- 2.Qe6#
- 1...Sa1
- 2.Sd2#
- 1...Sc1
- 2.Sd2#
- 1...Sd2
- 2.Sxd2#
- 1...Sxd4
- 2.Sd2#
- 1...Sa5
- 2.Sd2#
- 1...Sc5
- 2.Sd2#
- 1...Qb5
- Tries
- 1.Kh2?
- threat
- 2.Rf4#
- 2.Re5#
- 1...Qxf5
- 2.Qxf5#
- 1...Qxd4
- 2.Re5#
- 1...Qxf7
- 2.Rf4#
- 1...Rxg6
- 2.Rf4#
- 1...Rxf7
- 2.Rf4#
- 1...Sxd4
- 2.Sd2#
- 2.Re5#
- 1...Sf3+!
- threat
- 1.Bxe1?
- threat
- 2.Sg3#
- 1...Qxf5+
- 2.Qxf5#
- 1...Qd6
- 2.Rf4#
- 2.Re5#
- 1...Qc7
- 2.Rf4#
- 2.Re5#
- 1...Rxg6!
- threat
- 1.Bf2?
- threat
- 2.Sg3#
- 1...Qxf5+
- 2.Qxf5#
- 1...Qd6
- 2.Rf4#
- 2.Re5#
- 1...Qc7
- 2.Rf4#
- 2.Re5#
- 1...Rxg6!
- threat
- 1.Bd5+?
- 1...Qxd5
- 2.Rf4#
- 2.Re5#
- 1...Kd3!
- 1...Qxd5
- 1.Rxd7?
- threat
- 2.Rf4#
- 2.Qe6#
- 1...Rxg6
- 2.Rf4#
- 1...Rxd7
- 2.Rf2#
- 2.Rf4#
- 2.Rf6#
- 2.Rf7#
- 2.Rf8#
- 1...Sxd4
- 2.Sd2#
- 2.Rxd4#
- 1...Re7
- 2.Rf2#
- 2.Rf4#
- 2.Rf6#
- 2.Rf7#
- 2.Rf8#
- 1...Rf7
- 2.Rf4#
- 2.Rf6#
- 2.Rfxf7#
- 1...Rh7
- 2.Rf2#
- 2.Rf4#
- 2.Rf6#
- 2.Rff7#
- 2.Rf8#
- 1...Rg8
- 2.Rf4#
- 1...Sd3
- 2.Bd5#
- 2.Rf4#
- 1...Sf3
- 2.Rf4#
- 2.Re5#
- 1...Sc5
- 2.Sd2#
- 2.Rf4#
- 1...Bxd7!
- threat
- 1.Re7+?
- 1...Qe6
- 2.Rxe6#
- 2.Qxe6#
- 1...Qxe7
- 2.Rf4#
- 1...Rxe7!
- 1...Qe6
- 1.Qc6+?
- 1...Qxc6
- 2.Rf4#
- 2.Re5#
- 1...Qd5
- 2.Rf4#
- 2.Re5#
- 2.Qxd5#
- 1...Bxc6!
- 1...Qxc6
- 1.Kh2?
- Keys
- 1.Qxh5!
- threat
- 2.Qe2#
- 1...Qxf5+
- 2.Qxf5#
- 1...Rxg3+
- 2.Sxg3#
- 1...Qxd4
- 2.Rf4#
- 1...Qxf7
- 2.Re5#
- 1...Rxf7
- 2.Qg4#
- 1...Sxc2
- 2.Qf3#
- 1...Sxd4
- 2.Sd2#
- 1...Rg4
- 2.Qxg4#
- 1...Sg2
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sc1
- 2.Sd2#
- threat
- 1.Qxh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 6
- REMOVED MATES = 5
- Sets
- Q(f);CHECK,OGATE,P_SPINQ(f),XR(I)::QAB1(J),XQ(f)
- Q(f);N_GUARD::QAR2(J),XQ(f)
- Q(f);N_PINR(I),XP(G)::QAB(J)+R(I),DCHECK
- Q(f);N_PINR(I),XR(K)::QAB(J)+R(I),DCHECK
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- S(b);N_GUARD,XP(G)::S(A)
- Tries
- Try
- K(E);N_SPINR(I),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(f);OGATE,P_SPINQ(f),XR(I)::QAB1(J),XQ(f)
- Q(f);XP(G)::QAB(J)+R(I),DCHECK
- Q(f);XR(K)::QAB(J)+R(I),DCHECK
- R(g);XQ(J)::R1(I)
- R(g);XR(K)::QAB(J)+R(I),DCHECK
- Refutation
- S(a);CHECK
- Try
- B(D);XS(a)
- Threat
- S(A)
- Vars
- Q(f);CHECK,OGATE,P_SPINQ(f),XR(I)::QAB1(J),XQ(f)
- Refutation
- R(g);XQ(J)
- Try
- B(D);
- Threat
- S(A)
- Vars
- Q(f);CHECK,OGATE,P_SPINQ(f),XR(I)::QAB1(J),XQ(f)
- Refutation
- R(g);XQ(J)
- Try
- B(F);CHECK
- Refutation
- K(d);S_FLIGHT
- Try
- R(K);N_SPINR(I),XQ(f)
- Threat
- DUALS(2)
- Vars
- R(g);XQ(J)::R1(I)
- R(g);::QAB(J)+R(I),DCHECK
- Refutation
- B(c);P_PINR(I),XR(K)
- Try
- R(K);CHECK
- Vars
- Q(f);N_PINR(I),XR(K)::QAB(J)+R(I),DCHECK
- Refutation
- R(g);XR(K)
- Try
- Q(J);CHECK
- Refutation
- B(c);XQ(J)
- Try
- Actual
- Q(J);XP(e)
- Threat
- QAR2(J)
- Vars
- Q(f);CHECK,OGATE,XR(I)::QAB1(J),XQ(f)
- R(g);CHECK,XB(D)::S(A),XR(g)
- Q(f);N_PINR(I),XP(G)::R1(I)
- Q(f);N_PINR(I),XR(K)::R1(I)
- R(g);N_GUARD,XR(K)::QAR2(J)
- S(a);N_GUARD,XS(B)::QAB1(J)
- S(b);N_GUARD,XP(G)::S(A)
- R(g);N_GUARD,N_PINR(I)::QAR2(J),XR(g)
- S(a);N_GUARD::QAB1(J)
- S(a);N_GUARD::QAB1(J),XS(a)
- S(b);N_GUARD::S(A)
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