MESON Chess Problem Database
Problem Display
PID: 10129 (Q7/1NPBpp2/1PR1pB2/2PrPPKN/3Pk3/3R4/4P3/5n2 w - - 0 1)
Lipton, Michael
9th Comm., Die Schwalbe, 1962
#2
15 + 6
| 3174 | The Two-move Chess Problem Tradition and Development | 1966 |
SOLUTION
- SOUND
- Sets
- 1...Sd2
- 2.Sg3#
- 1...Sh2
- 2.Sg3#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...exf5
- 2.Bxf5#
- 1...exf6+
- 2.Sxf6#
- 1...Sd2
- Tries
- 1.Sa5?
- 1...exf6+
- 2.Sxf6#
- 1...Rxc5
- 2.Rxc5#
- 1...Rxe5
- 2.Rxe6#
- 1...Rxd7
- 2.Rd6#
- 1...exf5
- 2.Bxf5#
- 1...Rd6
- 2.Rxd6#
- 1...Sd2
- 2.Sg3#
- 1...Sh2
- 2.Sg3#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Rxd4!
- 1...exf6+
- 1.Sd6+?
- 1...Rxd6
- 2.Rxd6#
- 1...exd6!
- 1...Rxd6
- 1.Sd8?
- 1...exf6+
- 2.Sxf6#
- 1...Rxc5
- 2.Rxc5#
- 1...Rxe5
- 2.Rxe6#
- 1...Rxd7
- 2.Rd6#
- 1...exf5
- 2.Bxf5#
- 1...Rd6
- 2.Rxd6#
- 1...Sd2
- 2.Sg3#
- 1...Sh2
- 2.Sg3#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Rxd4!
- 1...exf6+
- 1.Bxe7?
- threat
- 2.Sf6#
- 1...f6+
- 2.Sxf6#
- 1...Rxd4!
- threat
- 1.Rd6?
- 1...exf6+
- 2.Sxf6#
- 1...Rxd4
- 2.R6xd4#
- 1...Rxc5
- 2.Sxc5#
- 1...Rxd6
- 2.Sxd6#
- 1...exf5
- 2.Bxf5#
- 1...exd6
- 2.Sxd6#
- 1...Sd2
- 2.Sg3#
- 1...Sh2
- 2.Sg3#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Rxe5!
- 1...exf6+
- 1.Rxe6?
- 1...exf6+
- 2.Sxf6#
- 1...Rxd4
- 2.Sd6#
- 1...Rxc5
- 2.Sxc5#
- 2.Sd6#
- 1...Rxe5
- 2.Sa5#
- 2.Sd6#
- 2.Sd8#
- 2.Bc6#
- 2.Rxe5#
- 1...Rxd7
- 2.Sd6#
- 1...Rd6
- 2.Sxd6#
- 1...Sd2
- 2.Sg3#
- 1...Sh2
- 2.Sg3#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...fxe6!
- 1...exf6+
- 1.Sa5?
- Keys
- 1.Qa4!
- 1...exf6+
- 2.Sxf6#
- 1...Rxd4
- 2.Qxd4#
- 1...Rxc5
- 2.dxc5#
- 1...Rxe5
- 2.dxe5#
- 2.d5#
- 1...Rxd7
- 2.d5#
- 1...exf5
- 2.Bxf5#
- 1...Rd6
- 2.d5#
- 1...Sd2
- 2.Sg3#
- 1...Sh2
- 2.Sg3#
- 1...Se3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...exf6+
- 1.Qa4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(d);OGATE,XP(F)::B(N),XP(d)
- P(e);CHECK,XB(K)::S(H),XP(e)
- Tries
- Try
- S(L);
- Vars
- P(e);CHECK,XB(K)::S(H),XP(e)
- R(c);OGATE,XP(D)::QAB(O)+R(J),XR(c)
- R(c);OGATEB,P_PINP(F),XP(E)::QAB(O)+R(J),XP(d)
- R(c);OGATEB,XB(N)::QAB(O)+R(J)
- P(d);OGATE,XP(F)::B(N),XP(d)
- R(c);OGATEB::QAB(O)+R(J),XR(c)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- Refutation
- R(c);XP(C)
- Try
- S(L);CHECK
- Vars
- R(c);OGATE,XS(L)::QAB(O)+R(J),XR(c)
- Refutation
- P(e);XS(L)
- Try
- S(L);
- Vars
- P(e);CHECK,XB(K)::S(H),XP(e)
- R(c);OGATE,XP(D)::QAB(O)+R(J),XR(c)
- R(c);OGATEB,P_PINP(F),XP(E)::QAB(O)+R(J),XP(d)
- R(c);OGATEB,XB(N)::QAB(O)+R(J)
- P(d);OGATE,XP(F)::B(N),XP(d)
- R(c);OGATEB::QAB(O)+R(J),XR(c)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- Refutation
- R(c);XP(C)
- Try
- B(K);XP(e)
- Threat
- S(H)
- Vars
- P(f);CHECK::S(H),XP(f)
- Refutation
- R(c);XP(C)
- Try
- R(J);
- Vars
- P(e);CHECK,XB(K)::S(H),XP(e)
- R(c);OGATE,XP(C)::R1(J),XR(c)
- R(c);XP(D)::QAB(O)+S(L),DCHECK,XR(c)
- R(c);XR(J)::QAB(O)+S(L),DCHECK,XR(c)
- P(d);OGATE,XP(F)::B(N),XP(d)
- P(e);XR(J)::S(L),XP(e)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- Refutation
- R(c);P_PINP(F),XP(E)
- Try
- R(J);XP(d)
- Vars
- P(e);CHECK,XB(K)::S(H),XP(e)
- R(c);XP(C)::QAB(O)+S(L),DCHECK
- R(c);XB(N)::QAB(O)+S(L),DCHECK
- R(c);::QAB(O)+S(L),DCHECK,XR(c)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- Refutation
- P(f);XR(J)
- Try
- Actual
- Q(O);
- Vars
- P(e);CHECK,XB(K)::S(H),XP(e)
- R(c);OGATE,P_SPINR(c),XP(C)::QAR1(O),XR(c)
- R(c);OGATE,XP(D)::QAR(O)+P(C),XR(c)
- R(c);OGATE,XB(N)::QAR(O)+P(C)
- P(d);OGATE,XP(F)::B(N),XP(d)
- R(c);OGATE::QAR(O)+P(C)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
Developed and maintained by Brian Stephenson.
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