MESON Chess Problem Database
Problem Display
PID: 67104 (8/4K1Qp/1N1P1P1N/1p1PkP2/1q2p2b/B3P1pb/1p6/8 w - - 0 1)
Stocchi, Ottavio
Comm., Israel Problemists' Association, 1954/I
#2
10 + 9
| 5407 | Selected Stocchi (II) | 2004 |
| 14475 | Mat Plus Review | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Qxd6+
- 2.Bxd6#
- 1...Bxf5
- 2.Sf7#
- 1...Bxf6+
- 2.Qxf6#
- 1...Qxd6+
- Tries
- 1.Kd7?
- threat
- 2.Qe7#
- 1...Qxd6+
- 2.Bxd6#
- 1...Bxf6
- 2.Qxg3#
- 1...Bxf5+!
- threat
- 1.Kf8?
- threat
- 2.Qe7#
- 1...Kxd6
- 2.Qe7#
- 1...Bxf5
- 2.Sf7#
- 1...Bxf6
- 2.Qxg3#
- 1...Qxd6+!
- threat
- 1.Bxb2+?
- 1...Qc3
- 2.Bxc3#
- 1...Qd4
- 2.Bxd4#
- 1...Qxb2!
- 1...Qc3
- 1.Bxb4?
- threat
- 2.Bc3#
- 1...Bxf6+
- 2.Qxf6#
- 1...b1S!
- threat
- 1.Qg5?
- threat
- 2.Sf7#
- 2.Qf4#
- 1...Qxd6+
- 2.Bxd6#
- 1...Bxg5!
- threat
- 1.Qg6?
- threat
- 2.Sf7#
- 1...Qxd6+
- 2.Bxd6#
- 1...Bxf6+
- 2.Qxf6#
- 1...hxg6!
- threat
- 1.Qf7?
- threat
- 2.Sd7#
- 2.Qe6#
- 1...Qxd6+
- 2.Bxd6#
- 1...Bxf6+
- 2.Qxf6#
- 1...Bxf5!
- threat
- 1.Qxh7?
- threat
- 2.Sf7#
- 1...Qxd6+
- 2.Bxd6#
- 1...Bxf6+!
- threat
- 1.Qg8?
- threat
- 2.Sd7#
- 2.Qe6#
- 1...Qxd6+
- 2.Bxd6#
- 1...Bxf5
- 2.Sf7#
- 1...Bxf6+!
- threat
- 1.Kd7?
- Keys
- 1.Ke8!
- threat
- 2.Qe7#
- 1...Kxd6
- 2.Qe7#
- 1...Qxd6
- 2.Bxb2#
- 1...Bxf5
- 2.Sf7#
- 1...Bxf6
- 2.Qxg3#
- threat
- 1.Ke8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(d);CHECK,OGATE,P_PINP(G),XP(F)::B(A),XQ(d)
- B(c);SBLOCK,XP(D)::S(H)
- B(f);CHECK,OGATE,P_SPINB(f),XP(G)::QAB1(J),XB(f)
- Tries
- Try
- K(I);N_SPINP(F),P-FLIGHT,P_SPINP(D)
- Threat
- QAR2(J)
- Vars
- Q(d);CHECK,OGATE,XP(F)::B(A),XQ(d)
- B(f);N_GUARD,P_SPINB(f),SBLOCK,XP(G)::QAB(J),XP(b)
- Refutation
- B(c);CHECK,XP(D)
- Try
- K(I);S_FLIGHT
- Threat
- QAR2(J)
- Vars
- K(h);P_SPINQ(d),S_FLIGHT,XP(F)::QAB1(J)
- B(c);SBLOCK,XP(D)::S(H)
- B(f);N_GUARD,P_SPINB(f),SBLOCK,XP(G)::QAB(J),XP(b)
- Refutation
- Q(d);CHECK,XP(F)
- Try
- B(A);CHECK,XP(a)
- Vars
- Q(d);N_GUARD,N_PINP(F),P_PINP(G),P_SPINQ(d)::B(A),XQ(d)
- Refutation
- Q(d);N_PINP(F),P_PINP(G),XB(A)
- Try
- B(A);N_SPINP(F),P_SPINP(G),XQ(d)
- Threat
- B(A)
- Vars
- B(f);CHECK,OGATE,P_SPINB(f),XP(G)::QAB1(J),XB(f)
- Refutation
- P(a);
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- Q(d);CHECK,OGATE,XP(F)::B(A),XQ(d)
- Refutation
- B(f);XQ(J)
- Try
- Q(J);
- Threat
- S(H)
- Vars
- Q(d);CHECK,OGATE,P_PINP(G),XP(F)::B(A),XQ(d)
- B(f);CHECK,OGATE,XP(G)::QAB1(J),XB(f)
- Refutation
- P(i);XQ(J)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- Q(d);CHECK,OGATE,P_PINP(G),XP(F)::B(A),XQ(d)
- B(f);CHECK,OGATE,XP(G)::QAB1(J),XB(f)
- Refutation
- B(c);XP(D)
- Try
- Q(J);XP(i)
- Threat
- S(H)
- Vars
- Q(d);CHECK,OGATE,P_PINP(G),XP(F)::B(A),XQ(d)
- Refutation
- B(f);CHECK,XP(G)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- Q(d);CHECK,OGATE,P_PINP(G),XP(F)::B(A),XQ(d)
- B(c);SBLOCK,XP(D)::S(H)
- Refutation
- B(f);CHECK,XP(G)
- Try
- Actual
- K(I);N_SPINP(F),P-FLIGHT
- Threat
- QAR2(J)
- Vars
- K(h);P_SPINQ(d),S_FLIGHT,XP(F)::QAB1(J)
- Q(d);N_GUARD,SBLOCK,XP(F)::B(A),XP(a)
- B(c);SBLOCK,XP(D)::S(H)
- B(f);N_GUARD,P_SPINB(f),SBLOCK,XP(G)::QAB(J),XP(b)
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