MESON Chess Problem Database
Problem Display
PID: 66997 (8/1nQ5/2npN1N1/pP1kP3/7R/qp3P1K/2P1P3/5B2 w - - 0 1)
Stocchi, Ottavio
3rd Comm., Problemschack, 1953
#2
11 + 7
| 5407 | Selected Stocchi (II) | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Sb4
- 2.Qc4#
- 1...Sd4
- 2.Sef4#
- 1...Sxe5
- 2.Sgf4#
- 1...Sa7
- 2.Qc4#
- 1...Se7
- 2.Qc4#
- 1...Sb8
- 2.Qc4#
- 1...Scd8
- 2.Qc4#
- 1...Sc5
- 2.Qxd6#
- 1...dxe5
- 2.Qxc6#
- 1...Sb4
- Tries
- 1.Sg5?
- threat
- 2.Qxc6#
- 1...Kc5
- 2.Qxc6#
- 1...Sxe5
- 2.Se7#
- 1...Qc5
- 2.Qf7#
- 1...Sb4
- 2.Qc4#
- 2.c4#
- 1...Sd4
- 2.c4#
- 2.e4#
- 1...Sa7
- 2.Qc4#
- 2.c4#
- 1...Se7
- 2.Qc4#
- 2.c4#
- 1...Sb8
- 2.Qc4#
- 2.c4#
- 1...Scd8
- 2.Qc4#
- 2.c4#
- 1...Sbd8!
- threat
- 1.Sg7?
- threat
- 2.Qxc6#
- 1...Kc5
- 2.Qxc6#
- 1...Sxe5
- 2.Se7#
- 1...Qc5
- 2.Qf7#
- 1...Sb4
- 2.Qc4#
- 2.c4#
- 1...Sd4
- 2.c4#
- 2.e4#
- 1...Sa7
- 2.Qc4#
- 2.c4#
- 1...Se7
- 2.Qc4#
- 2.c4#
- 1...Sb8
- 2.Qc4#
- 2.c4#
- 1...Scd8
- 2.Qc4#
- 2.c4#
- 1...Sbd8!
- threat
- 1.Sd8?
- threat
- 2.Qxc6#
- 1...Kc5
- 2.Qxc6#
- 1...Sxe5
- 2.Se7#
- 1...Scxd8
- 2.Qc4#
- 1...Qc5
- 2.Qf7#
- 1...Sb4
- 2.Qc4#
- 2.c4#
- 1...Sd4
- 2.c4#
- 2.e4#
- 1...Sa7
- 2.Qc4#
- 2.c4#
- 1...Se7
- 2.Qc4#
- 2.c4#
- 1...Sb8
- 2.Qc4#
- 2.c4#
- 1...Sbxd8!
- threat
- 1.Sef8?
- threat
- 2.Qxc6#
- 1...Kc5
- 2.Qxc6#
- 1...Sxe5
- 2.Se7#
- 1...Qc5
- 2.Qf7#
- 1...Sb4
- 2.Qc4#
- 2.c4#
- 1...Sd4
- 2.c4#
- 2.e4#
- 1...Sa7
- 2.Qc4#
- 2.c4#
- 1...Se7
- 2.Qc4#
- 2.c4#
- 1...Sb8
- 2.Qc4#
- 2.c4#
- 1...Scd8
- 2.Qc4#
- 2.c4#
- 1...Sbd8!
- threat
- 1.Rd4+?
- 1...Sxd4
- 2.Sef4#
- 1...Kxe6!
- 1...Sxd4
- 1.Sg5?
- Keys
- 1.Sc5!
- threat
- 2.Qxc6#
- 1...Kxc5
- 2.Qxc6#
- 1...Qxc5
- 2.Qf7#
- 1...Sxe5
- 2.Se7#
- 1...Sxc5
- 2.Qxd6#
- 1...Sb4
- 2.c4#
- 1...Sd4
- 2.e4#
- 1...Sa7
- 2.c4#
- 1...Se7
- 2.c4#
- 1...Sb8
- 2.c4#
- 1...Scd8
- 2.c4#
- 1...Sbd8
- 2.Qxd6#
- threat
- 1.Sc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 7
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- S(e);OGATE::QAB1(K)
- S(e);SBLOCK::S(I)
- S(e);SBLOCK,XP(H)::S(J)
- S(g);N_GUARD,S_CUTQ(a)::QAR1(K),XP(f)
- P(f);XP(H)::QAB1(K),XS(e)
- Tries
- Try
- S(I);
- Threat
- QAB1(K),XS(e)
- Vars
- K(d);P-FLIGHT,P_SPINS(e)::QAR1(K),XS(e)
- S(e);N_GUARD,SBLOCK,XP(H)::S(J)
- Q(a);SBLOCK::QAB(K)
- Refutation
- S(g);
- Try
- S(I);
- Threat
- QAB1(K),XS(e)
- Vars
- K(d);P-FLIGHT,P_SPINS(e)::QAR1(K),XS(e)
- S(e);N_GUARD,SBLOCK,XP(H)::S(J)
- Q(a);SBLOCK::QAB(K)
- Refutation
- S(g);
- Try
- S(I);
- Threat
- QAB1(K),XS(e)
- Vars
- K(d);P-FLIGHT,P_SPINS(e)::QAR1(K),XS(e)
- S(e);N_GUARD,SBLOCK,XP(H)::S(J)
- S(e);OGATE,XS(I)::QAB1(K)
- Q(a);SBLOCK::QAB(K)
- Refutation
- S(g);XS(I)
- Try
- S(I);
- Threat
- QAB1(K),XS(e)
- Vars
- K(d);P-FLIGHT,P_SPINS(e)::QAR1(K),XS(e)
- S(e);N_GUARD,SBLOCK,XP(H)::S(J)
- Q(a);SBLOCK::QAB(K)
- Refutation
- S(g);
- Try
- R(F);CHECK
- Vars
- S(e);SBLOCK,XR(F)::S(I)
- Refutation
- K(d);S_FLIGHT,XS(I)
- Try
- Actual
- S(I);
- Threat
- QAB1(K),XS(e)
- Vars
- K(d);P-FLIGHT,P_SPINS(e),XS(I)::QAR1(K),XS(e)
- Q(a);SBLOCK,XS(I)::QAB(K)
- S(e);N_GUARD,SBLOCK,XP(H)::S(J)
- S(g);N_GUARD,XS(I)::QAR1(K),XP(f)
- S(e);::P(B)
- S(e);SBLOCK::P(C)
- S(g);N_GUARD::QAR1(K),XP(f)
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