MESON Chess Problem Database
Problem Display
PID: 164831 (5R2/3RB3/1b2p1p1/2n1k3/4b3/K1P3P1/8/1B2Q3 w - - 0 1)
Pirrone, Santi
Il Due Mosse, 1958
#2
8 + 6
| 136 | Problem Observer | 2017 |
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Sb3
- 2.Qxe4#
- 1...Sa4
- 2.Qxe4#
- 1...Sa6
- 2.Qxe4#
- 1...Sb7
- 2.Qxe4#
- 1...Sxd7
- 2.Qxe4#
- 1...Sb3
- Tries
- 1.Rd4?
- threat
- 2.Bd6#
- 1...Sb7
- 2.Qxe4#
- 1...Bc7!
- threat
- 1.Rf1?
- threat
- 2.Bf6#
- 1...Sxd7
- 2.Qxe4#
- 1...Bd8!
- threat
- 1.Rf2?
- threat
- 2.Bf6#
- 1...Sxd7
- 2.Qxe4#
- 1...Bd8!
- threat
- 1.Rf3?
- threat
- 2.Bf6#
- 1...Sxd7
- 2.Qxe4#
- 1...Bd8!
- threat
- 1.Rf4?
- threat
- 2.Bf6#
- 1...Sxd7
- 2.Qxe4#
- 1...Bd8!
- threat
- 1.Qd2?
- threat
- 2.Bd6#
- 2.Qf4#
- 2.Qd4#
- 2.Qd6#
- 1...Bxb1
- 2.Qf4#
- 2.Qd4#
- 1...Sxd7
- 2.Bd6#
- 2.Qd6#
- 1...Bc2
- 2.Qf4#
- 2.Qd4#
- 1...Bd3
- 2.Qf4#
- 1...Bc7
- 2.Qf4#
- 2.Qd4#
- 1...Bd5
- 2.Bd6#
- 2.Bf6#
- 2.Qf4#
- 2.Qg5#
- 2.Qd4#
- 1...Sb3
- 2.Bd6#
- 2.Qf4#
- 2.Qd6#
- 1...Sa4
- 2.Bd6#
- 2.Qf4#
- 2.Qd6#
- 1...Sa6
- 2.Bd6#
- 2.Qf4#
- 2.Qd6#
- 1...Sb7
- 2.Qf4#
- 1...g5
- 2.Bd6#
- 2.Qd4#
- 2.Qd6#
- 1...Sd3!
- threat
- 1.Qf2?
- threat
- 2.Bf6#
- 2.Qd4#
- 2.Qf4#
- 2.Qf6#
- 1...Bxb1
- 2.Qd4#
- 2.Qf4#
- 1...Bc2
- 2.Qd4#
- 2.Qf4#
- 1...Bd3
- 2.Qd4#
- 2.Qf4#
- 1...Bf3
- 2.Bf6#
- 2.Qd4#
- 1...Bf5
- 2.Bf6#
- 2.Qd4#
- 2.Qf4#
- 1...Bd8
- 2.Qd4#
- 2.Qf4#
- 2.Qf6#
- 1...Sb3
- 2.Bf6#
- 2.Qf4#
- 2.Qf6#
- 1...Sd3
- 2.Bf6#
- 2.Qf6#
- 1...Sa4
- 2.Bf6#
- 2.Qf4#
- 2.Qf6#
- 1...Sa6
- 2.Bf6#
- 2.Qf4#
- 2.Qf6#
- 1...Sb7
- 2.Bf6#
- 2.Qf4#
- 2.Qf6#
- 1...g5
- 2.Bf6#
- 2.Qd4#
- 2.Qf6#
- 1...Sxd7!
- threat
- 1.Qf1?
- threat
- 2.Bf6#
- 2.Qf4#
- 2.Qf6#
- 1...Bxb1
- 2.Qf4#
- 1...Bc2
- 2.Qf4#
- 1...Bd3
- 2.Qf4#
- 1...Bf3
- 2.Bf6#
- 1...Bf5
- 2.Bf6#
- 2.Qf4#
- 1...Bd8
- 2.Qf4#
- 2.Qf6#
- 1...Sd3
- 2.Bf6#
- 2.Qf6#
- 1...g5
- 2.Bf6#
- 2.Qf6#
- 1...Sxd7!
- threat
- 1.Qe3?
- threat
- 2.Qd4#
- 2.Qf4#
- 1...Sxd7
- 2.Qxe4#
- 1...Sb3
- 2.Qf4#
- 2.Qxe4#
- 1...Sa4
- 2.Qf4#
- 2.Qxe4#
- 1...Sa6
- 2.Qf4#
- 2.Qxe4#
- 1...Sb7
- 2.Qf4#
- 2.Qxe4#
- 1...g5
- 2.Qd4#
- 1...Sd3!
- threat
- 1.g4?
- threat
- 2.Qg3#
- 1...Sxd7
- 2.Qxe4#
- 1...Sd3!
- threat
- 1.Rd4?
- Keys
- 1.Qh1!
- threat
- 2.Qh8#
- 1...Bxb1
- 2.Bd6#
- 1...Bxh1
- 2.Bf6#
- 1...Sxd7
- 2.Qxe4#
- 1...Bc2
- 2.Bd6#
- 1...Bd3
- 2.Bd6#
- threat
- 1.Qh1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- S(b);N_GUARD::QAR1(B),XB(a)
- S(b);N_GUARD,XR(F)::QAR1(B),XB(a)
- Tries
- Try
- R(F);
- Threat
- B(G)
- Vars
- S(b);N_GUARD::QAR1(B),XB(a)
- Refutation
- B(d);
- Try
- R(H);
- Threat
- B(G)
- Vars
- S(b);N_GUARD,XR(F)::QAR1(B),XB(a)
- Refutation
- B(d);
- Try
- R(H);
- Threat
- B(G)
- Vars
- S(b);N_GUARD,XR(F)::QAR1(B),XB(a)
- Refutation
- B(d);
- Try
- R(H);
- Threat
- B(G)
- Vars
- S(b);N_GUARD,XR(F)::QAR1(B),XB(a)
- Refutation
- B(d);
- Try
- R(H);
- Threat
- B(G)
- Vars
- S(b);N_GUARD,XR(F)::QAR1(B),XB(a)
- Refutation
- B(d);
- Try
- Q(B);N_PINB(a)
- Threat
- DUALS(4)
- Vars
- B(a);::QAB1(B)
- S(b);::QAB1(B)
- Refutation
- S(b);
- Try
- Q(B);N_PINB(a)
- Threat
- DUALS(4)
- Refutation
- S(b);XR(F)
- Try
- Q(B);N_PINB(a)
- Threat
- DUALS(3)
- Vars
- B(a);XB(A)::QAB1(B)
- B(a);::QAB1(B)
- B(a);::B(G)
- Refutation
- S(b);XR(F)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD,XR(F)::QAR1(B),XB(a)
- P(f);::QAB1(B)
- Refutation
- S(b);
- Try
- P(E);
- Threat
- QAB(B)
- Vars
- S(b);N_GUARD,XR(F)::QAR1(B),XB(a)
- Refutation
- S(b);
- Try
- Actual
- Q(B);N_PINB(a)
- Threat
- QAB(B)
- Vars
- B(a);XB(A)::B(G)
- B(a);XQ(B)::B(G)
- S(b);N_GUARD,XR(F)::QAR1(B),XB(a)
- B(a);::B(G)
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