MESON Chess Problem Database
Problem Display
PID: 43486 (3rB2n/p2p4/K2N2Rp/pP1k2Nq/1p1Bp2p/rP4n1/8/1Q1R4 w - - 0 1)
Stocchi, Ottavio
3rd Prize, Skakbladet, 1950
#2
10 + 13
| 5407 | Selected Stocchi (II) | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Rxb3
- 2.Qxb3#
- 1...Sf1
- 2.Qxe4#
- 1...Sh1
- 2.Qxe4#
- 1...Se2
- 2.Qxe4#
- 1...Sf5
- 2.Qxe4#
- 1...Sf7
- 2.Bxf7#
- 1...Rxb3
- Tries
- 1.Sc4?
- threat
- 2.Se3#
- 2.Rd6#
- 1...Qxg6+
- 2.Bb6#
- 1...Qxd1
- 2.Rd6#
- 1...Qxg5
- 2.Be3#
- 2.Rd6#
- 1...Sxg6
- 2.Bf7#
- 1...Qe2
- 2.Rd6#
- 1...Qf3
- 2.Rd6#
- 1...Sf1
- 2.Rd6#
- 2.Qxe4#
- 1...Sf5
- 2.Qxe4#
- 1...Sf7
- 2.Se3#
- 2.Bxf7#
- 1...e3
- 2.Sxe3#
- 2.Rd6#
- 1...d6
- 2.Se3#
- 2.Bc6#
- 1...Rxb3!
- threat
- 1.Sdxe4?
- threat
- 2.Rd6#
- 1...Qxg6+
- 2.Bf6#
- 1...Rxb3
- 2.Qxb3#
- 1...Sxe4
- 2.Qxe4#
- 1...Sxg6
- 2.Bf7#
- 1...Sf7
- 2.Bxf7#
- 1...d6
- 2.Sf6#
- 2.Bc6#
- 1...Sf5!
- threat
- 1.Sf5?
- threat
- 2.Se3#
- 2.Se7#
- 2.Rd6#
- 1...Qxd1
- 2.Rd6#
- 1...Qxg5
- 2.Rd6#
- 1...Rxb3
- 2.Qxb3#
- 1...Rxe8
- 2.Se3#
- 2.Rd6#
- 1...Sxf5
- 2.Qxe4#
- 1...Sxg6
- 2.Bf7#
- 1...Qe2
- 2.Se7#
- 2.Rd6#
- 1...Qf3
- 2.Se7#
- 2.Rd6#
- 1...Sf1
- 2.Se7#
- 2.Rd6#
- 2.Qxe4#
- 1...Sf7
- 2.Se3#
- 2.Se7#
- 2.Bxf7#
- 1...e3
- 2.Sxe3#
- 2.Se7#
- 2.Rd6#
- 1...d6
- 2.Se3#
- 2.Se7#
- 2.Bc6#
- 1...Qxg6+!
- threat
- 1.Sdf7?
- threat
- 2.Rd6#
- 1...Qxg6+
- 2.Bb6#
- 1...Rxb3
- 2.Qxb3#
- 1...Sxf7
- 2.Bxf7#
- 1...Sf5
- 2.Qxe4#
- 1...d6
- 2.Bc6#
- 1...Sxg6!
- threat
- 1.Ba1+?
- 1...Kc5
- 2.Sb7#
- 2.Qc2#
- 2.Qc1#
- 1...Qxd1!
- 1...Kc5
- 1.Bb2+?
- 1...Kc5
- 2.Sb7#
- 2.Qc2#
- 2.Qc1#
- 1...Qxd1!
- 1...Kc5
- 1.Bc3+?
- 1...Kc5
- 2.Sb7#
- 1...Qxd1!
- 1...Kc5
- 1.Be3+?
- 1...Ke5
- 2.Qb2#
- 1...Qxd1!
- 1...Ke5
- 1.Bf6+?
- 1...Kc5
- 2.Sb7#
- 2.Qc2#
- 2.Qc1#
- 1...Qxd1!
- 1...Kc5
- 1.Bg7+?
- 1...Kc5
- 2.Sb7#
- 2.Qc2#
- 2.Qc1#
- 1...Qxd1!
- 1...Kc5
- 1.Bxh8+?
- 1...Kc5
- 2.Sb7#
- 2.Qc2#
- 2.Qc1#
- 1...Qxd1!
- 1...Kc5
- 1.Qc2?
- threat
- 2.Qc4#
- 2.Qc5#
- 1...Qxg6
- 2.Ba1#
- 2.Bb2#
- 2.Bf6#
- 2.Bg7#
- 2.Bxh8#
- 2.Qc5#
- 1...Sxg6
- 2.Qc5#
- 1...Qe2
- 2.Qc5#
- 1...Rc8!
- threat
- 1.Qc1?
- threat
- 2.Qc4#
- 2.Qc5#
- 1...Qxg6
- 2.Ba1#
- 2.Bb2#
- 2.Bf6#
- 2.Bg7#
- 2.Bxh8#
- 2.Qc5#
- 1...Sxg6
- 2.Qc5#
- 1...Qe2
- 2.Qc5#
- 1...Rc8!
- threat
- 1.Sc4?
- Keys
- 1.Sb7!
- threat
- 2.Rd6#
- 1...Qxg6+
- 2.Bf6#
- 1...Rxb3
- 2.Qxb3#
- 1...Sxg6
- 2.Bf7#
- 1...Sf5
- 2.Qxe4#
- 1...Sf7
- 2.Bxf7#
- 1...d6
- 2.Bc6#
- threat
- 1.Sb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- R(a);OGATE,XP(C)::QAB(A),XR(a)
- S(b);N_GUARD::QAB1(A),XP(d)
- S(m);N_GUARD::B(J),XS(m)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(h);CHECK,N_GUARD,XR(I)::R(B)+B(D)
- Q(h);XR(B)::R1(I)
- S(m);N_GUARD,XR(I)::B(J)
- Q(h);::R1(I)
- S(b);N_GUARD::QAB1(A),XP(d)
- Refutation
- R(a);XP(C)
- Try
- S(H);XP(d)
- Threat
- R1(I)
- Vars
- Q(h);CHECK,N_GUARD,XR(I)::R(B)+B(D)
- R(a);OGATE,XP(C)::QAB(A),XR(a)
- S(b);OGATE,XS(H)::QAB1(A),XS(b)
- S(m);N_GUARD,XR(I)::B(J)
- S(m);N_GUARD::B(J),XS(m)
- Refutation
- S(b);
- Try
- S(H);
- Threat
- DUALS(3)
- Vars
- Q(h);XR(B)::R1(I)
- Q(h);XS(F)::R1(I)
- R(a);OGATE,XP(C)::QAB(A),XR(a)
- S(b);N_GUARD,XS(H)::QAB1(A),XP(d)
- S(m);N_GUARD,XR(I)::B(J)
- Refutation
- Q(h);CHECK,XR(I)
- Try
- S(H);
- Threat
- R1(I)
- Vars
- Q(h);CHECK,N_GUARD,XR(I)::R(B)+B(D)
- R(a);OGATE,XP(C)::QAB(A),XR(a)
- S(m);OGATE,XS(H)::B(J),XS(m)
- S(b);N_GUARD::QAB1(A),XP(d)
- P(k);OGATE::B(J)
- Refutation
- S(m);XR(I)
- Try
- B(D);CHECK
- Refutation
- Q(h);XR(B)
- Try
- B(D);CHECK
- Refutation
- Q(h);XR(B)
- Try
- B(D);CHECK
- Vars
- K(g);P-FLIGHT::S(H)
- Refutation
- Q(h);XR(B)
- Try
- B(D);CHECK
- Vars
- K(g);P-FLIGHT::QAB(A)
- Refutation
- Q(h);XR(B)
- Try
- B(D);CHECK
- Refutation
- Q(h);XR(B)
- Try
- B(D);CHECK
- Refutation
- Q(h);XR(B)
- Try
- B(D);CHECK,XS(m)
- Refutation
- Q(h);XR(B)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(m);XR(I)::QAR1(A)
- Q(h);P_PINP(E)::QAR1(A)
- Refutation
- R(l);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(m);XR(I)::QAR1(A)
- Q(h);P_PINP(E)::QAR1(A)
- Refutation
- R(l);
- Try
- Actual
- S(H);
- Threat
- R1(I)
- Vars
- Q(h);CHECK,N_GUARD,XR(I)::R(B)+B(D)
- R(a);OGATE,XP(C)::QAB(A),XR(a)
- S(m);N_GUARD,XR(I)::B(J)
- S(b);N_GUARD::QAB1(A),XP(d)
- S(m);N_GUARD::B(J),XS(m)
- P(k);OGATE::B(J)
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