MESON Chess Problem Database
Problem Display
PID: 67565 (8/2b2K2/3pP1P1/1n3b1R/3PkN1Q/3R4/3B4/1Br5 w - - 0 1)
Stocchi, Ottavio
3rd HM., Praca, 1956
#2
10 + 6
| 5407 | Selected Stocchi (II) | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Qxe1#
- 1...Rh1
- 2.Qxh1#
- 1...Rc2
- 2.Qe1#
- 2.Qh1#
- 1...Rc3
- 2.Qe1#
- 2.Qh1#
- 1...Rc4
- 2.Qe1#
- 2.Qh1#
- 1...Rc5
- 2.Qe1#
- 2.Qh1#
- 1...Rc6
- 2.Qe1#
- 2.Qh1#
- 1...Bh3
- 2.Sxh3#
- 1...Bxe6+
- 2.Sxe6#
- 1...Bxg6+
- 2.Sxg6#
- 1...Sxd4
- 2.Re3#
- 1...Re1
- Tries
- 1.Se2+?
- 1...Bg4
- 2.Sg3#
- 2.Re3#
- 2.Qxg4#
- 1...Kd5!
- 1...Bg4
- 1.Sg2+?
- 1...Bg4
- 2.Qxg4#
- 1...Kd5!
- 1...Bg4
- 1.Sh3+?
- 1...Bg4
- 2.Sf2#
- 2.Qxg4#
- 1...Kd5!
- 1...Bg4
- 1.Sd5+?
- 1...Bg4
- 2.Sf6#
- 2.Qxg4#
- 1...Kxd5!
- 1...Bg4
- 1.Bxc1?
- threat
- 2.Qe1#
- 2.Qh1#
- 1...Bxe6+
- 2.Sxe6#
- 1...Bxg6+
- 2.Sxg6#
- 1...Sxd4
- 2.Re3#
- 1...Bh3
- 2.Sxh3#
- 2.Qe1#
- 1...Ba5
- 2.Qh1#
- 1...Sc3
- 2.Qh1#
- 1...Bg4!
- threat
- 1.Qg3?
- threat
- 2.Qg2#
- 2.Qe3#
- 2.Qf3#
- 1...Bxg6+
- 2.Qxg6#
- 1...Sxd4
- 2.Re3#
- 2.Qe3#
- 1...Re1
- 2.Qxe1#
- 2.Qg2#
- 2.Qf3#
- 1...Rf1
- 2.Qe3#
- 1...Rg1
- 2.Qe3#
- 2.Qf3#
- 1...Bh3
- 2.Qe3#
- 2.Qf3#
- 1...Bg4
- 2.Qe3#
- 1...Bxe6+!
- threat
- 1.Qg5?
- threat
- 2.Qg2#
- 2.Qxf5#
- 1...Bxg6+
- 2.Qxg6#
- 1...Sxd4
- 2.Re3#
- 1...Rf1
- 2.Qxf5#
- 1...Rg1
- 2.Qxf5#
- 1...Rc5
- 2.Qg2#
- 1...Bh3
- 2.Qd5#
- 1...Bg4
- 2.Qd5#
- 1...Bxe6+!
- threat
- 1.Qg4?
- threat
- 2.Qe2#
- 2.Qf3#
- 2.Qxf5#
- 2.Qg2#
- 1...Bxe6+
- 2.Sxe6#
- 2.Qxe6#
- 1...Bxg6+
- 2.Sxg6#
- 2.Qxg6#
- 1...Sxd4
- 2.Re3#
- 1...Re1
- 2.Qf3#
- 2.Qxf5#
- 2.Qg2#
- 1...Rf1
- 2.Qe2#
- 2.Qxf5#
- 1...Rg1
- 2.Qe2#
- 2.Qf3#
- 2.Qxf5#
- 1...Rc5
- 2.Qe2#
- 2.Qf3#
- 2.Qg2#
- 1...Sc3
- 2.Qf3#
- 2.Qxf5#
- 2.Qg2#
- 1...Bxg4!
- threat
- 1.Se2+?
- Keys
- 1.Qf6!
- threat
- 2.Qxf5#
- 1...Bxe6+
- 2.Qxe6#
- 1...Bxg6+
- 2.Qxg6#
- 1...Sxd4
- 2.Qxd4#
- 1...Rc5
- 2.Rc3#
- 1...Bh3
- 2.Re3#
- 1...Bg4
- 2.Re3#
- threat
- 1.Qf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- R(a);N_GUARD::QAR(F),XR(a)
- R(a);N_GUARD::QAB(F),XR(a)
- B(d);N_GUARD::QAR(F)+S(E),XB(d)
- B(d);CHECK,XP(H)::QAR(F)+S(E),XB(d)
- B(d);CHECK,XP(I)::QAR(F)+S(E),XB(d)
- S(c);SBLOCK,XP(D)::B(A)+R(C),DCHECK
- Tries
- Try
- S(E);CHECK
- Refutation
- K(b);P_SPINB(d),S_FLIGHT
- Try
- S(E);CHECK
- Vars
- B(d);N_GUARD,P_SPINB(d)::QAR2(F),XB(d)
- Refutation
- K(b);P_SPINB(d),S_FLIGHT
- Try
- S(E);CHECK
- Refutation
- K(b);P_SPINB(d),S_FLIGHT
- Try
- S(E);CHECK
- Refutation
- K(b);P_SPINB(d),S_FLIGHT,XS(E)
- Try
- B(B);XR(a)
- Threat
- DUALS(2)
- Vars
- B(d);CHECK,XP(H)::QAR(F)+S(E),XB(d)
- B(d);CHECK,XP(I)::QAR(F)+S(E),XB(d)
- S(c);SBLOCK,XP(D)::B(A)+R(C),DCHECK
- B(f);::QAB(F)
- S(c);::QAB(F)
- Refutation
- B(d);
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- B(d);CHECK,OGATE,XP(I)::QAB(F),XB(d)
- R(a);::QAR1(F)
- B(d);::QAR1(F)
- Refutation
- B(d);CHECK,XP(H)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- B(d);CHECK,OGATE,XP(I)::QAB(F),XB(d)
- S(c);SBLOCK,XP(D)::B(A)+R(C),DCHECK
- R(a);::QAB1(F),XB(d)
- R(a);::QAB(F)
- B(d);OGATE::QAB1(F)
- Refutation
- B(d);CHECK,XP(H)
- Try
- Q(F);
- Threat
- DUALS(4)
- Vars
- S(c);SBLOCK,XP(D)::B(A)+R(C),DCHECK
- Refutation
- B(d);XQ(F)
- Try
- Actual
- Q(F);
- Threat
- QAB1(F),XB(d)
- Vars
- B(d);CHECK,OGATE,XP(H)::QAR2(F),XB(d)
- B(d);CHECK,OGATE,XP(I)::QAB(F),XB(d)
- S(c);OGATE,XP(D)::QAR1(F),XS(c)
- R(a);N_GUARD::B(A)+R(C)
- B(d);::B(A)+R(C),DCHECK
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