MESON Chess Problem Database
Problem Display
PID: 176215 (n7/B3P3/2p5/NPn1pp2/3k4/K1N5/1PPr1PQ1/3B4 w - - 0 1)
Pieprzyk, Rudolf
Schach-Echo, 1972
#2
11 + 7
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxd1
- 2.Se2#
- 1...Re2
- 2.Sxe2#
- 1...Rxf2
- 2.Qxf2#
- 1...e4
- 2.Qg7#
- 1...f4
- 2.Qe4#
- 1...cxb5
- 2.Sxb5#
- 2.Qd5#
- 1...Rxd1
- Tries
- 1.Kb4?
- threat
- 2.Sb3#
- 2.Sxc6#
- 2.Bxc5#
- 1...Rxf2
- 2.Bxc5#
- 2.Qxf2#
- 1...cxb5
- 2.Sxb5#
- 2.Sb3#
- 2.Sc6#
- 2.Bxc5#
- 2.Qd5#
- 1...e4
- 2.Sxc6#
- 2.Qg7#
- 1...Sb6
- 2.Sxc6#
- 1...Rxc2!
- threat
- 1.Be2?
- threat
- 2.Sb3#
- 2.Sxc6#
- 1...Rxe2
- 2.Sxe2#
- 1...cxb5
- 2.Sxb5#
- 2.Sb3#
- 2.Sc6#
- 2.Qd5#
- 1...e4
- 2.Sxc6#
- 2.Qg7#
- 1...Sb6
- 2.Sxc6#
- 1...Rd3!
- threat
- 1.Qf1?
- threat
- 2.Sb3#
- 2.Sxc6#
- 2.Qc4#
- 1...Rxf2
- 2.Qd3#
- 2.Qxf2#
- 1...cxb5
- 2.Sb3#
- 2.Sc6#
- 1...e4
- 2.Sxc6#
- 1...Rd3
- 2.Qxd3#
- 1...Sb6
- 2.Sxc6#
- 1...Re2!
- threat
- 1.Qf3?
- threat
- 2.Qe3#
- 1...Rxf2
- 2.Qxf2#
- 2.Qd3#
- 1...Rd3
- 2.Qxd3#
- 1...Re2
- 2.Sxe2#
- 2.Qd3#
- 1...f4
- 2.Qe4#
- 1...e4!
- threat
- 1.Qxc6?
- threat
- 2.Bxc5#
- 2.Qd5#
- 2.Qd7#
- 2.Qxc5#
- 2.Qd6#
- 1...Rxc2
- 2.Qd5#
- 2.Qd7#
- 2.Qd6#
- 1...Rxf2
- 2.Bxc5#
- 2.Qxc5#
- 1...e4
- 2.Qd5#
- 2.Qxc5#
- 2.Qd6#
- 2.Qf6#
- 1...Sc7
- 2.Bxc5#
- 2.Qxc5#
- 1...Sb6!
- threat
- 1.Qg3?
- threat
- 2.Qe3#
- 1...Rxf2
- 2.Qxf2#
- 2.Qd3#
- 1...Rd3
- 2.Qxd3#
- 1...Re2
- 2.Qd3#
- 1...e4
- 2.Qd6#
- 2.Qg7#
- 1...f4!
- threat
- 1.Qg4+?
- 1...e4
- 2.Qg7#
- 1...f4
- 2.Qd7#
- 1...fxg4!
- 1...e4
- 1.Qg8?
- threat
- 2.Sb3#
- 2.Sxc6#
- 2.Qc4#
- 2.Qd8#
- 1...Rxc2
- 2.Qc4#
- 2.Qd8#
- 1...cxb5
- 2.Sb3#
- 2.Sc6#
- 2.Qd5#
- 2.Qd8#
- 1...e4
- 2.Sxc6#
- 2.Qg7#
- 2.Qh8#
- 1...Sb6
- 2.Sxc6#
- 1...Sc7
- 2.Sb3#
- 2.Sxc6#
- 2.Qc4#
- 1...Rxf2!
- threat
- 1.bxc6?
- threat
- 2.Sb5#
- 2.Qd5#
- 1...Rxc2
- 2.Qd5#
- 1...Rxf2
- 2.Qxf2#
- 1...e4
- 2.Qg7#
- 1...Rd3
- 2.Qd5#
- 1...Sb6
- 2.Sb5#
- 1...Sc7!
- threat
- 1.Kb4?
- Keys
- 1.Qh3!
- threat
- 2.Qe3#
- 1...Rxf2
- 2.Qd3#
- 1...e4
- 2.Qh8#
- 1...Rd3
- 2.Qxd3#
- 1...Re2
- 2.Qd3#
- 1...f4
- 2.Qd7#
- threat
- 1.Qh3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD,XB(A)::S(G)
- R(a);N_GUARD::S(G),XR(a)
- R(a);OGATE,XP(D)::QAB(E),XR(a)
- P(d);OGATEB::QAB(E)
- P(e);N_GUARD::QAR1(E)
- Tries
- Try
- K(F);S_FLIGHT
- Threat
- DUALS(3)
- Vars
- S(g);N_SPINS(c)::S(H),XP(f)
- Refutation
- R(a);XP(C)
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- R(a);XB(A)::S(G),XR(a)
- S(g);N_SPINS(c)::S(H),XP(f)
- Refutation
- R(a);P_PINS(G)
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- P(d);::S(H),XP(f)
- R(a);N_GUARD,P_PINS(G)::QAR1(E),XR(a)
- S(g);N_SPINS(c)::S(H),XP(f)
- Refutation
- R(a);
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- R(a);N_GUARD,P_PINS(G)::QAR1(E),XR(a)
- P(e);N_GUARD::QAR1(E)
- Refutation
- P(d);
- Try
- Q(E);XP(f)
- Threat
- DUALS(5)
- Refutation
- S(g);N_SPINS(c)
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- R(a);N_GUARD,P_PINS(G)::QAR1(E),XR(a)
- R(a);N_GUARD::QAR1(E)
- Refutation
- P(e);
- Try
- Q(E);CHECK
- Vars
- P(d);OGATEB,P_SPINP(d)::QAB(E)
- P(e);OGATE,P_SPINP(e)::QAR(E)
- Refutation
- P(e);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(4)
- Vars
- S(g);N_SPINS(c)::S(H),XP(f)
- Refutation
- R(a);XP(D)
- Try
- P(I);XP(f)
- Threat
- DUALS(2)
- Vars
- R(a);XP(C)::QAR1(E)
- R(a);OGATE,XP(D)::QAB(E),XR(a)
- P(d);OGATEB::QAB(E)
- R(a);P_PINS(G)::QAR1(E)
- S(g);N_SPINS(c)::S(G)
- Refutation
- S(g);
- Try
- Actual
- Q(E);
- Threat
- QAB1(E)
- Vars
- R(a);N_GUARD,XP(D)::QAR1(E)
- P(d);OGATEB::QAB(E)
- R(a);N_GUARD,P_PINS(G)::QAR1(E),XR(a)
- R(a);N_GUARD::QAR1(E)
- P(e);OGATE::QAR(E)
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