MESON Chess Problem Database
Problem Display
PID: 29263 (1NN3B1/b3QR2/1np5/p6p/1rk4r/B2pPP2/P1PK3p/2R5 w - - 0 1)
Stocchi, Ottavio
2nd Prize, Nepszava, 1940
#2
12 + 10
| 3100 | Selected Stocchi (I) | 2001 |
| 14475 | Mat Plus Review | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Kd5
- 2.Rf4#
- 2.Rf5#
- 2.Rf6#
- 2.Rg7#
- 2.Rh7#
- 2.Rf8#
- 1...Rb1
- 2.Qc5#
- 1...Rb2
- 2.Qc5#
- 1...Rb3
- 2.Qc5#
- 1...Ra4
- 2.Qc5#
- 1...Rb5
- 2.Rf4#
- 1...Sa4
- 2.Rf5#
- 1...Sd7
- 2.Rf5#
- 1...Sa8
- 2.Rf5#
- 1...Sxc8
- 2.Rf5#
- 1...Kd5
- Tries
- 1.Sa6?
- threat
- 2.Qc5#
- 1...Kd5
- 2.Rf4#
- 2.Rf5#
- 2.Rf6#
- 2.Rg7#
- 2.Rh7#
- 2.Rf8#
- 1...Sxc8
- 2.Rf5#
- 1...Rb5
- 2.Rf4#
- 1...Sa4
- 2.Rf5#
- 1...Sd5
- 2.Sd6#
- 1...Sd7
- 2.Rf5#
- 1...Sa8
- 2.Rf5#
- 1...c5
- 2.Qxc5#
- 1...Kb5!
- threat
- 1.Sd7?
- threat
- 2.Qc5#
- 1...Kd5
- 2.Rf4#
- 2.Rf5#
- 2.Rf6#
- 2.Rg7#
- 2.Rh7#
- 2.Rf8#
- 1...Sxd7
- 2.Rf5#
- 1...Sxc8
- 2.Rf5#
- 1...Rb5
- 2.Rf4#
- 1...Sa4
- 2.Rf5#
- 1...Sd5
- 2.Sd6#
- 1...Sa8
- 2.Rf5#
- 1...c5
- 2.Qxc5#
- 1...Kb5!
- threat
- 1.Sxb6+?
- 1...Rxb6
- 2.Rf5#
- 2.Qc5#
- 1...Bxb6
- 2.Rf5#
- 1...Kb5!
- 1...Rxb6
- 1.Sd6+?
- 1...Kd5
- 2.Rf5#
- 1...Kc5!
- 1...Kd5
- 1.Qxb4+?
- 1...Kd5
- 2.Rf5#
- 2.Re7#
- 1...axb4!
- 1...Kd5
- 1.Qg5?
- threat
- 2.Sd6#
- 2.Rf4#
- 2.cxd3#
- 1...Bxb8
- 2.Rf4#
- 2.cxd3#
- 1...Sxc8
- 2.Rf4#
- 2.Rf5#
- 2.Rf6#
- 2.Rxa7#
- 2.Rb7#
- 2.Rc7#
- 2.Rd7#
- 2.Re7#
- 2.Rg7#
- 2.Rh7#
- 2.Rf8#
- 2.cxd3#
- 1...dxc2
- 2.Sd6#
- 2.Rxc2#
- 2.Rf4#
- 1...c5
- 2.Sd6#
- 1...Rb2
- 2.Sd6#
- 2.Rf4#
- 2.Qc5#
- 1...Rd4
- 2.cxd3#
- 1...Re4
- 2.Sd6#
- 2.cxd3#
- 1...Rf4
- 2.Sd6#
- 2.Rxf4#
- 2.cxd3#
- 1...Sd5!
- threat
- 1.Qd6?
- threat
- 2.Qxc6#
- 1...Kb5
- 2.Qxc6#
- 1...Sxc8
- 2.Rf5#
- 2.Rb7#
- 1...Rb5
- 2.Rf4#
- 2.Qxd3#
- 2.cxd3#
- 1...Sa4
- 2.Rf5#
- 2.Rb7#
- 1...Sd7
- 2.Rf5#
- 1...Sa8
- 2.Rf5#
- 2.Rb7#
- 1...c5
- 2.Qxd3#
- 1...Sd5!
- threat
- 1.Qe4+?
- 1...Kb5
- 2.Qxc6#
- 1...Kc5
- 2.Qxc6#
- 1...Rxe4!
- 1...Kb5
- 1.Qe5?
- threat
- 2.Sd6#
- 2.Rf4#
- 2.cxd3#
- 1...Bxb8
- 2.Rf4#
- 2.cxd3#
- 1...Sxc8
- 2.Rf4#
- 2.Rf5#
- 2.Rf6#
- 2.Rxa7#
- 2.Rb7#
- 2.Rc7#
- 2.Rd7#
- 2.Re7#
- 2.Rg7#
- 2.Rh7#
- 2.Rf8#
- 2.cxd3#
- 1...dxc2
- 2.Sd6#
- 2.Rxc2#
- 2.Rf4#
- 1...c5
- 2.Sd6#
- 1...Rb2
- 2.Sd6#
- 2.Rf4#
- 2.Qc5#
- 1...Rd4
- 2.cxd3#
- 1...Re4
- 2.Sd6#
- 2.cxd3#
- 1...Rf4
- 2.Sd6#
- 2.Rxf4#
- 2.cxd3#
- 1...Sd5!
- threat
- 1.Qe6+?
- 1...Kb5
- 2.Qxc6#
- 1...Kc5
- 2.Qxc6#
- 1...Sd5!
- 1...Kb5
- 1.Qd7?
- threat
- 2.Qxc6#
- 1...Kb5
- 2.Qxc6#
- 1...Kc5
- 2.Qxc6#
- 1...Sxd7
- 2.Rf5#
- 1...Sxc8
- 2.Rf5#
- 1...Rb5
- 2.Rf4#
- 2.Qxd3#
- 2.cxd3#
- 1...Sa4
- 2.Rf5#
- 1...Sa8
- 2.Rf5#
- 1...c5
- 2.Rf4#
- 2.Qxd3#
- 2.cxd3#
- 1...Sd5!
- threat
- 1.Qe8?
- threat
- 2.Qxc6#
- 1...Kb5
- 2.Qxc6#
- 1...Kc5
- 2.Qxc6#
- 1...Kd5
- 2.Rf5#
- 1...Sxc8
- 2.Rf5#
- 1...Rb5
- 2.Rf4#
- 1...Sa4
- 2.Rf5#
- 1...Sd7
- 2.Rf5#
- 1...Sa8
- 2.Rf5#
- 1...c5
- 2.Rf4#
- 1...Sd5!
- threat
- 1.cxd3+?
- 1...Kd5
- 2.Rc5#
- 2.Rf4#
- 2.Rf5#
- 2.Rf6#
- 2.Rg7#
- 2.Rh7#
- 2.Rf8#
- 2.Qd6#
- 1...Kb5!
- 1...Kd5
- 1.Sa6?
- Keys
- 1.Qb7!
- threat
- 2.Qxc6#
- 1...Kb5
- 2.Qxc6#
- 1...Kc5
- 2.Qxc6#
- 1...Kd5
- 2.Rf5#
- 1...Sxc8
- 2.Rf5#
- 1...Sd5
- 2.cxd3#
- 1...Rb5
- 2.Rf4#
- 1...Sa4
- 2.Rf5#
- 1...Sd7
- 2.Rf5#
- 1...Sa8
- 2.Rf5#
- 1...c5
- 2.Sd6#
- threat
- 1.Qb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- R(c);::QAR1(H)
- R(c);P_PINP(C)::QAR1(H)
- R(c);SBLOCK::B(L)+R(I),DCHECK
- S(h);N_GUARD::B(L)+R(I)
- S(h);N_GUARD,XS(K)::B(L)+R(I)
- Tries
- Try
- S(J);
- Threat
- QAR1(H)
- Vars
- S(h);N_GUARD,XS(K)::B(L)+R(I)
- R(c);SBLOCK::B(L)+R(I),DCHECK
- S(h);N_GUARD::B(L)+R(I)
- S(h);SBLOCK::S(K)
- P(i);::QAR1(H),XP(i)
- Refutation
- K(d);S_FLIGHT
- Try
- S(J);
- Threat
- QAR1(H)
- Vars
- S(h);N_GUARD,XS(J)::B(L)+R(I)
- S(h);N_GUARD,XS(K)::B(L)+R(I)
- R(c);SBLOCK::B(L)+R(I),DCHECK
- S(h);N_GUARD::B(L)+R(I)
- S(h);SBLOCK::S(K)
- P(i);::QAR1(H),XP(i)
- Refutation
- K(d);S_FLIGHT
- Try
- S(K);CHECK,XS(h)
- Vars
- B(j);XS(K)::B(L)+R(I)
- Refutation
- K(d);S_FLIGHT
- Try
- S(K);CHECK
- Vars
- K(d);S_FLIGHT::B(L)+R(I),DCHECK
- Refutation
- K(d);P-FLIGHT,P_SPINR(c)
- Try
- Q(H);CHECK,XR(c)
- Refutation
- P(f);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- P(i);::S(K)
- R(e);::R(A)+P(C)DCHECK,XP(b)
- Refutation
- S(h);
- Try
- Q(H);
- Threat
- QAR2(H),XP(i)
- Vars
- K(d);S_FLIGHT::QAB1(H),XP(i)
- S(h);N_GUARD::B(L)+R(I)
- P(i);SBLOCK::QAB1(H),XP(b)
- Refutation
- S(h);
- Try
- Q(H);CHECK
- Vars
- K(d);S_FLIGHT::QAB1(H),XP(i)
- K(d);P-FLIGHT,P_SPINR(c)::QAR1(H),XP(i)
- Refutation
- R(e);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- P(i);::S(K)
- R(e);::R(A)+P(C)DCHECK,XP(b)
- Refutation
- S(h);
- Try
- Q(H);CHECK
- Vars
- K(d);S_FLIGHT::QAB1(H),XP(i)
- K(d);P-FLIGHT,P_SPINR(c)::QAR1(H),XP(i)
- Refutation
- S(h);P_SPINS(h)
- Try
- Q(H);
- Threat
- QAR2(H),XP(i)
- Vars
- K(d);P_SPINP(i),S_FLIGHT::QAB1(H),XP(i)
- K(d);P-FLIGHT,P_SPINR(c)::QAR1(H),XP(i)
- S(h);N_GUARD,XQ(H)::B(L)+R(I)
- S(h);N_GUARD,XS(K)::B(L)+R(I)
- S(h);N_GUARD::B(L)+R(I)
- Refutation
- S(h);
- Try
- Q(H);
- Threat
- QAR2(H),XP(i)
- Vars
- K(d);P_SPINP(i),S_FLIGHT::QAB1(H),XP(i)
- K(d);P-FLIGHT,P_SPINR(c)::QAR1(H),XP(i)
- K(d);S_FLIGHT::B(L)+R(I),DCHECK
- S(h);N_GUARD,XS(K)::B(L)+R(I)
- R(c);SBLOCK::B(L)+R(I),DCHECK
- S(h);N_GUARD::B(L)+R(I)
- P(i);SBLOCK::B(L)+R(I),DCHECK
- Refutation
- S(h);
- Try
- P(C);CHECK,XP(b)
- Refutation
- K(d);S_FLIGHT
- Try
- Actual
- Q(H);
- Threat
- QAR2(H),XP(i)
- Vars
- K(d);P_SPINS(h),S_FLIGHT::QAB1(H),XP(i)
- K(d);P-FLIGHT,P_SPINR(c)::QAR1(H),XP(i)
- K(d);P_SPINP(i),S_FLIGHT::B(L)+R(I),DCHECK
- S(h);N_GUARD,XS(K)::B(L)+R(I)
- S(h);SBLOCK::R(A)+P(C)DCHECK,XP(b)
- R(c);SBLOCK::B(L)+R(I),DCHECK
- S(h);N_GUARD::B(L)+R(I)
- P(i);SBLOCK::S(K)
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