MESON Chess Problem Database
Problem Display
PID: 30031 (1n1RK3/2pp3p/n1P5/1QN2p1r/3kBB2/5b1q/1P1r2N1/8 w - - 0 1)
Stocchi, Ottavio
1st Prize, Revista Romana de Sah, 1949
#2
9 + 11
| 3100 | Selected Stocchi (I) | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Bxe4
- 2.Se6#
- 1...Sb4
- 2.Qxb4#
- 1...Sxc5
- 2.Qb4#
- 1...Sxc6
- 2.Rxd7#
- 1...fxe4
- 2.Sb3#
- 1...d5
- 2.Rxd5#
- 1...Bxe4
- Tries
- 1.Sd3?
- threat
- 2.Qd5#
- 1...Kxe4
- 2.Qc4#
- 1...Bxe4
- 2.Be5#
- 1...fxe4
- 2.Be3#
- 1...Sb4
- 2.Qxb4#
- 1...Sc5
- 2.Qb4#
- 1...d5
- 2.Qxd5#
- 1...Rxb2!
- threat
- 1.Sa4?
- threat
- 2.Qd5#
- 1...Bxe4
- 2.Be5#
- 1...fxe4
- 2.Be3#
- 1...Sb4
- 2.Qxb4#
- 1...Sc5
- 2.Qb4#
- 1...d5
- 2.Qxd5#
- 1...Kxe4!
- threat
- 1.Sxa6?
- threat
- 2.Qa4#
- 2.Qb4#
- 2.Qd5#
- 1...Rxb2
- 2.Qd3#
- 1...Bxe4
- 2.Be5#
- 1...Sxa6
- 2.Qd5#
- 1...Sxc6
- 2.Qd5#
- 1...fxe4
- 2.Be3#
- 1...Rc2
- 2.Qd3#
- 2.Qd5#
- 1...Bd1
- 2.Qb4#
- 2.Qd5#
- 1...Be2
- 2.Qd5#
- 1...d5
- 2.Qa4#
- 2.Qb4#
- 2.Qxd5#
- 1...Kxe4!
- threat
- 1.Sb7?
- threat
- 2.Qd5#
- 1...Rxb2
- 2.Qd3#
- 1...Bxe4
- 2.Be5#
- 1...fxe4
- 2.Be3#
- 1...Sb4
- 2.Qxb4#
- 1...Sc5
- 2.Qb4#
- 1...d5
- 2.Qxd5#
- 1...Kxe4!
- threat
- 1.Qa4+?
- 1...Sb4
- 2.Qxb4#
- 1...Kxc5!
- 1...Sb4
- 1.Sd3?
- Keys
- 1.Sxd7!
- threat
- 2.Qd5#
- 1...Kxe4
- 2.Sf6#
- 1...Rxb2
- 2.Qd3#
- 1...Bxe4
- 2.Be5#
- 1...fxe4
- 2.Be3#
- 1...Sb4
- 2.Qxb4#
- 1...Sc5
- 2.Qb4#
- threat
- 1.Sxd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- B(b);SBLOCK,XB(C)::S(F)
- S(g);N_GUARD::QAR2(E),XS(g)
- S(g);N_GUARD,XS(F)::QAR2(E)
- S(k);N_GUARD,XP(G)::R(H),XP(i)
- P(e);SBLOCK,XB(C)::S(F)
- P(i);OGATE::R1(H),XP(i)
- Tries
- Try
- S(F);
- Threat
- QAR1(E)
- Vars
- K(d);N_SPINP(i),P-FLIGHT,XB(C)::QAR2(E)
- B(b);SBLOCK,XB(C)::B(D)
- P(e);SBLOCK,XB(C)::B(D)
- S(g);N_GUARD::QAR2(E),XS(g)
- S(g);N_GUARD::QAR2(E)
- P(i);::QAR1(E),XP(i)
- Refutation
- R(a);XP(A)
- Try
- S(F);
- Threat
- QAR1(E)
- Vars
- B(b);SBLOCK,XB(C)::B(D)
- P(e);SBLOCK,XB(C)::B(D)
- S(g);N_GUARD::QAR2(E),XS(g)
- S(g);N_GUARD::QAR2(E)
- P(i);::QAR1(E),XP(i)
- Refutation
- K(d);N_SPINP(i),P-FLIGHT,XB(C)
- Try
- S(F);XS(g)
- Threat
- DUALS(3)
- Vars
- R(a);N_GUARD,XP(A)::QAR1(E)
- B(b);SBLOCK,XB(C)::B(D)
- S(k);XS(F)::QAR1(E)
- S(k);XP(G)::QAR1(E)
- P(e);SBLOCK,XB(C)::B(D)
- B(b);::QAR1(E)
- Refutation
- K(d);N_SPINP(i),P-FLIGHT,XB(C)
- Try
- S(F);
- Threat
- QAR1(E)
- Vars
- R(a);N_GUARD,XP(A)::QAR1(E)
- B(b);SBLOCK,XB(C)::B(D)
- P(e);SBLOCK,XB(C)::B(D)
- S(g);N_GUARD::QAR2(E),XS(g)
- S(g);N_GUARD::QAR2(E)
- P(i);::QAR1(E),XP(i)
- Refutation
- K(d);N_SPINP(i),P-FLIGHT,XB(C)
- Try
- Q(E);CHECK
- Vars
- S(g);N_GUARD,P_SPINS(g)::QAR2(E),XS(g)
- Refutation
- K(d);N_SPINP(i),S_FLIGHT,XS(F)
- Try
- Actual
- S(F);XP(i)
- Threat
- QAR1(E)
- Vars
- K(d);P-FLIGHT,XB(C)::S(F)
- R(a);N_GUARD,XP(A)::QAR1(E)
- B(b);SBLOCK,XB(C)::B(D)
- P(e);SBLOCK,XB(C)::B(D)
- S(g);N_GUARD::QAR2(E),XS(g)
- S(g);N_GUARD::QAR2(E)
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