MESON Chess Problem Database
Problem Display
PID: 57502 (2RK4/2N1p3/4P3/R1N5/1BPk4/P4QP1/2b1n3/8 w - - 0 1)
Stocchi, Ottavio
Comm., Chess Life, 1956
#2
11 + 4
| 5407 | Selected Stocchi (II) | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Kxc4
- 2.Qd5#
- 1...Ke5
- 2.Sb3#
- 1...Bd1
- 2.Qe4#
- 1...Bb3
- 2.Qe4#
- 1...Ba4
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Sc1
- 2.Qc3#
- 1...Sg1
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sxg3
- 2.Qc3#
- 1...Sf4
- 2.Qc3#
- 1...Kxc4
- Tries
- 1.Sb3+?
- 1...Kxc4
- 2.Sb5#
- 2.Sd5#
- 2.Sa6#
- 2.Sa8#
- 2.Se8#
- 2.Rc5#
- 2.Qd5#
- 1...Bxb3!
- 1...Kxc4
- 1.Sb5+?
- 1...Kxc4
- 2.Sb3#
- 2.Sa4#
- 2.Sa6#
- 2.Sb7#
- 2.Sd7#
- 1...Ke5!
- 1...Kxc4
- 1.S7a6?
- 1...Kxc4
- 2.Sb3#
- 1...Sxg3
- 2.Qc3#
- 1...Bb1
- 2.Sb3#
- 1...Bd1
- 2.Qe4#
- 1...Bb3
- 2.Sxb3#
- 2.Qe4#
- 1...Bd3
- 2.Sb3#
- 1...Ba4
- 2.Qe4#
- 1...Be4
- 2.Sb3#
- 2.Qxe4#
- 1...Bf5
- 2.Sb3#
- 1...Bg6
- 2.Sb3#
- 1...Bh7
- 2.Sb3#
- 1...Sc1
- 2.Qc3#
- 1...Sg1
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sf4
- 2.Qc3#
- 1...Ke5!
- 1...Kxc4
- 1.Sa8?
- 1...Kxc4
- 2.Sb3#
- 1...Sxg3
- 2.Qc3#
- 1...Bb1
- 2.Sb3#
- 1...Bd1
- 2.Qe4#
- 1...Bb3
- 2.Sxb3#
- 2.Qe4#
- 1...Bd3
- 2.Sb3#
- 1...Ba4
- 2.Qe4#
- 1...Be4
- 2.Sb3#
- 2.Qxe4#
- 1...Bf5
- 2.Sb3#
- 1...Bg6
- 2.Sb3#
- 1...Bh7
- 2.Sb3#
- 1...Sc1
- 2.Qc3#
- 1...Sg1
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sf4
- 2.Qc3#
- 1...Ke5!
- 1...Kxc4
- 1.Bd2?
- threat
- 2.Qd5#
- 1...Kxc4
- 2.Qd5#
- 1...Be4
- 2.Qxe4#
- 1...Sc3
- 2.Qxc3#
- 1...Sf4
- 2.Qc3#
- 1...Ke5!
- threat
- 1.Qxe2?
- threat
- 2.Sb5#
- 1...Be4
- 2.Sb3#
- 2.Qxe4#
- 1...Ba4
- 2.Qe4#
- 1...Bd3!
- threat
- 1.Qd3+?
- 1...Ke5
- 2.Se4#
- 2.Sd7#
- 1...Bxd3!
- 1...Ke5
- 1.Qf4+?
- 1...Be4
- 2.Qxe4#
- 1...Sxf4!
- 1...Be4
- 1.Sb3+?
- Keys
- 1.Se8!
- 1...Kxc4
- 2.Sb3#
- 1...Ke5
- 2.Qd5#
- 1...Sxg3
- 2.Qc3#
- 1...Bb1
- 2.Sb3#
- 1...Bd1
- 2.Qe4#
- 1...Bb3
- 2.Sxb3#
- 2.Qe4#
- 1...Bd3
- 2.Sb3#
- 1...Ba4
- 2.Qe4#
- 1...Be4
- 2.Sb3#
- 2.Qxe4#
- 1...Bf5
- 2.Sb3#
- 1...Bg6
- 2.Sb3#
- 1...Bh7
- 2.Sb3#
- 1...Sc1
- 2.Qc3#
- 1...Sg1
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sf4
- 2.Qc3#
- 1...Kxc4
- 1.Se8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 5
- REMOVED MATES = 2
- Sets
- K(c);P-FLIGHT,XP(E)::QAB1(B)
- K(c);S_FLIGHT::R(F)+S(G)
- B(a);N_GUARD::QAR1(B)
- B(a);N_GUARD::QAR1(B),XB(a)
- S(b);N_GUARD::QAB1(B)
- S(b);N_GUARD::QAB1(B),XS(b)
- S(b);N_GUARD,XP(C)::QAB1(B)
- Tries
- Try
- S(G);CHECK
- Refutation
- B(a);XS(G)
- Try
- S(I);CHECK
- Refutation
- K(c);S_FLIGHT
- Try
- S(I);
- Vars
- K(c);P-FLIGHT,XP(E)::R(J)+S(G)
- S(b);N_GUARD,XP(C)::QAB1(B)
- B(a);N_GUARD::S(G)
- B(a);N_GUARD::QAR1(B)
- S(b);N_GUARD::QAB1(B)
- S(b);N_GUARD::QAB1(B),XS(b)
- Refutation
- K(c);S_FLIGHT
- Try
- S(I);
- Vars
- K(c);P-FLIGHT,XP(E)::R(J)+S(G)
- S(b);N_GUARD,XP(C)::QAB1(B)
- B(a);N_GUARD::S(G)
- B(a);N_GUARD::QAR1(B)
- S(b);N_GUARD::QAB1(B)
- S(b);N_GUARD::QAB1(B),XS(b)
- Refutation
- K(c);S_FLIGHT
- Try
- B(D);
- Threat
- QAR1(B)
- Vars
- K(c);P-FLIGHT,XP(E)::QAB1(B)
- B(a);N_GUARD::QAR1(B),XB(a)
- S(b);N_GUARD::QAB1(B),XS(b)
- S(b);N_GUARD::QAB1(B)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(B);XS(b)
- Threat
- S(I)
- Vars
- B(a);N_GUARD::QAR1(B)
- Refutation
- B(a);
- Try
- Q(B);CHECK
- Refutation
- B(a);XQ(B)
- Try
- Q(B);CHECK
- Vars
- B(a);N_GUARD,P_SPINB(a)::QAR1(B),XB(a)
- Refutation
- S(b);XQ(B)
- Try
- Actual
- S(I);
- Vars
- K(c);P-FLIGHT,XP(E)::R(J)+S(G)
- K(c);S_FLIGHT::QAR1(B)
- S(b);N_GUARD,XP(C)::QAB1(B)
- B(a);N_GUARD::S(G)
- B(a);N_GUARD::QAR1(B)
- S(b);N_GUARD::QAB1(B)
- S(b);N_GUARD::QAB1(B),XS(b)
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