MESON Chess Problem Database
Problem Display
PID: 67423 (5B2/Kp4R1/pNpp3b/1PkN4/p5qn/3R4/1Q6/1n6 w - - 0 1)
Stocchi, Ottavio
1st Prize, L'Echiquier de Paris, 1955
#2
8 + 10
| 5407 | Selected Stocchi (II) | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Qb4#
- 1...Qe2
- 2.Qb4#
- 1...Qf3
- 2.Qb4#
- 1...Qh3
- 2.Qb4#
- 1...Qf5
- 2.Qb4#
- 1...Qh5
- 2.Qb4#
- 1...Qe6
- 2.Qb4#
- 1...Qd7
- 2.Qb4#
- 1...Qc8
- 2.Qb4#
- 1...Qg1
- 2.Qb4#
- 1...Qg2
- 2.Qb4#
- 1...Qg3
- 2.Qb4#
- 1...Qb4
- 2.Qxb4#
- 1...Qc4
- 2.Sd7#
- 1...Qg5
- 2.Qb4#
- 1...Qg6
- 2.Qb4#
- 1...Qxg7
- 2.Qb4#
- 1...Bf4
- 2.Qb4#
- 1...cxb5
- 2.Rc7#
- 1...cxd5
- 2.Rxd5#
- 2.Rc7#
- 1...Qd1
- Tries
- 1.Sf6?
- threat
- 2.Bxd6#
- 1...cxb5
- 2.Rc7#
- 1...Qb4
- 2.Qe5#
- 1...Qd7
- 2.Se4#
- 2.Sfxd7#
- 1...Qg3
- 2.Se4#
- 2.Sfd7#
- 1...Qd4
- 2.Sfd7#
- 1...Qf4
- 2.Sfd7#
- 1...Bf4
- 2.Se4#
- 1...Sf5
- 2.Sfd7#
- 1...Qe6!
- threat
- 1.Sc7?
- threat
- 2.Bxd6#
- 1...Qe6
- 2.Sxe6#
- 2.Qd4#
- 1...Qd7
- 2.Qd4#
- 1...Qg3
- 2.Se6#
- 2.Qd4#
- 1...Qd4
- 2.Se6#
- 2.Qxd4#
- 1...Qf4
- 2.Se6#
- 1...Qg6
- 2.Qd4#
- 1...Bf4
- 2.Qd4#
- 1...Sf5
- 2.Se6#
- 1...cxb5!
- threat
- 1.Sxa4+?
- 1...Kc4
- 2.Qb3#
- 1...Qxa4!
- 1...Kc4
- 1.Sd7+?
- 1...Qxd7
- 2.Qb4#
- 1...Kc4!
- 1...Qxd7
- 1.Rd4?
- threat
- 2.Sxa4#
- 2.Qb4#
- 1...axb5
- 2.Qb4#
- 1...cxb5
- 2.Rc7#
- 1...Sc3
- 2.Qb4#
- 1...Qd1
- 2.Sd7#
- 2.Rc4#
- 2.Qb4#
- 1...Bd2
- 2.Sxa4#
- 1...a3
- 2.Sa4#
- 2.Qb4#
- 1...a5
- 2.Sxa4#
- 1...Qxd4!
- threat
- 1.Rxg4?
- threat
- 2.Sxa4#
- 2.Sd7#
- 2.Rc4#
- 2.Qb4#
- 1...axb5
- 2.Sd7#
- 2.Qd4#
- 2.Qb4#
- 1...cxd5
- 2.Sxa4#
- 2.Sd7#
- 2.Rxd5#
- 2.Qb4#
- 1...Bd2
- 2.Sxa4#
- 2.Sd7#
- 2.Rc4#
- 1...Bf4
- 2.Qb4#
- 1...Sd2
- 2.Sxa4#
- 2.Sd7#
- 2.Qb4#
- 1...Sa3
- 2.Sxa4#
- 2.Sd7#
- 2.Qb4#
- 1...Sc3
- 2.Sd7#
- 2.Rxc3#
- 2.Rc4#
- 2.Qb4#
- 1...a3
- 2.Sa4#
- 2.Sd7#
- 2.Rc4#
- 2.Qb4#
- 1...a5
- 2.Sxa4#
- 2.Sd7#
- 2.Rc4#
- 1...cxb5!
- threat
- 1.Qc3+?
- 1...Kxb5
- 2.Sc7#
- 1...Qc4
- 2.Qxc4#
- 1...Sxc3!
- 1...Kxb5
- 1.Sf6?
- Keys
- 1.Se3!
- threat
- 2.Bxd6#
- 1...cxb5
- 2.Rc7#
- 1...Qb4
- 2.Qe5#
- 1...Qe6
- 2.Sxa4#
- 1...Qd7
- 2.Sxa4#
- 2.Sxd7#
- 1...Qg3
- 2.Sxa4#
- 2.Sd7#
- 1...Qd4
- 2.Sd7#
- 1...Qf4
- 2.Sd7#
- 1...Qg6
- 2.Sxa4#
- 2.Sd7#
- 1...Bf4
- 2.Sxa4#
- 1...Sf5
- 2.Sd7#
- threat
- 1.Se3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 3
- REMOVED MATES = 15
- Sets
- Q(c);N_GUARD::QAB1(A)
- Q(c);N_GUARD::QAB1(A),XQ(c)
- Q(c);N_GUARD,SBLOCK::S(E)
- Q(c);N_GUARD,XR(G)::QAB1(A)
- B(i);S_CUTQ(c)::QAB1(A)
- P(g);OGATEB,XP(C)::R(G)
- Tries
- Try
- S(D);
- Threat
- B(H),XP(h)
- Vars
- P(g);OGATEB,XP(C)::R(G)
- Q(c);SBLOCK::QAR2(A)
- Q(c);N_GUARD::S(D)
- B(i);S_CUTQ(c)::S(D)
- S(d);S_CUTQ(c)::S(D)
- Refutation
- Q(c);
- Try
- S(D);
- Threat
- B(H),XP(h)
- Vars
- Q(c);N_GUARD::QAB1(A)
- Q(c);N_GUARD::S(D)
- B(i);S_CUTQ(c)::QAB1(A)
- S(d);S_CUTQ(c)::S(D)
- Refutation
- P(g);XP(C)
- Try
- S(E);CHECK,XP(b)
- Vars
- K(e);N_SPINP(h),P-FLIGHT::QAB1(A)
- Refutation
- Q(c);XS(E)
- Try
- S(E);CHECK
- Vars
- Q(c);XS(E)::QAB1(A)
- Refutation
- K(e);N_SPINP(h),P-FLIGHT
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- P(f);XP(C)::QAB1(A)
- P(g);OGATEB,XP(C)::R(G)
- S(a);::QAB1(A)
- B(i);::S(E),XP(b)
- P(f);::S(E),XP(b)
- Refutation
- Q(c);XR(B)
- Try
- R(G);XQ(c)
- Threat
- DUALS(4)
- Vars
- B(i);::QAB1(A)
- Refutation
- P(g);XP(C)
- Try
- Q(A);CHECK
- Vars
- K(e);N_SPINP(h),P-FLIGHT,XP(C)::S(D)
- Q(c);N_GUARD,P_SPINQ(c)::QAR1(A),XQ(c)
- Refutation
- S(a);XQ(A)
- Try
- Actual
- S(D);
- Threat
- B(H),XP(h)
- Vars
- P(g);OGATEB,XP(C)::R(G)
- Q(c);SBLOCK::QAR2(A)
- Q(c);N_GUARD::S(E),XP(b)
- Q(c);N_GUARD::S(E)
- B(i);S_CUTQ(c)::S(E),XP(b)
- S(d);S_CUTQ(c)::S(E)
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