MESON Chess Problem Database
Problem Display
PID: 42894 (8/4p1B1/2N3r1/7n/4kpP1/4rN1p/Q1PPqbP1/KB2R3 w - - 0 1)
Lipton, Michael
1st Prize, McWilliam Ty., 1956
#2
11 + 9
| 3147 | Chess Problems: Introduction to an Art | 1963 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Qc4#
- 1...Qd3
- 2.cxd3#
- 1...Qxf3
- 2.Qc4#
- 2.c3#
- 2.c4#
- 2.d3#
- 1...Qc4
- 2.Qxc4#
- 1...Qa6
- 2.c4#
- 1...Qxe1
- 2.Qc4#
- 1...Qxd2
- 2.Sxd2#
- 1...Ra3
- 2.c3#
- 1...Rd3
- 2.cxd3#
- 1...Rxg4
- 2.Qe6#
- 1...Rg5
- 2.Sxg5#
- 1...Rxc6
- 2.Sg5#
- 1...Rd6
- 2.Sg5#
- 1...Re6
- 2.Sg5#
- 2.Qxe6#
- 1...Rf6
- 2.Sg5#
- 1...Rh6
- 2.Sg5#
- 1...Rxg7
- 2.Qe6#
- 1...Sf6
- 2.Qe6#
- 1...Qd1
- Tries
- 1.Sxe7?
- threat
- 2.Qd5#
- 1...Qxd2
- 2.Sxd2#
- 1...Qd3
- 2.cxd3#
- 1...Qc4
- 2.Qxc4#
- 1...Qa6
- 2.c4#
- 1...Ra3
- 2.c3#
- 1...Rb3
- 2.cxb3#
- 1...Rd3
- 2.cxd3#
- 1...Rg5
- 2.Sxg5#
- 1...Ra6
- 2.Sg5#
- 1...Rd6
- 2.Sg5#
- 1...Sf6
- 2.Qe6#
- 1...Qb5!
- threat
- 1.Rxe2?
- threat
- 2.Qc4#
- 2.c3#
- 2.c4#
- 2.d3#
- 1...Rxe2
- 2.c3#
- 2.c4#
- 1...Rxg4
- 2.Qe6#
- 2.c3#
- 2.c4#
- 1...Rxc6
- 2.Sg5#
- 2.c3#
- 2.c4#
- 2.d3#
- 1...Rd6
- 2.Sg5#
- 1...hxg2!
- threat
- 1.Qa4+?
- 1...Qc4
- 2.Qxc4#
- 1...Kd5!
- 1...Qc4
- 1.c3+?
- 1...Qd3
- 2.Qc4#
- 1...Rd3!
- 1...Qd3
- 1.d3+?
- 1...Qxd3
- 2.cxd3#
- 1...Rxd3!
- 1...Qxd3
- 1.Sxe7?
- Keys
- 1.Sb4!
- threat
- 2.Qd5#
- 1...Qxd2
- 2.Sxd2#
- 1...Qd3
- 2.cxd3#
- 1...Qc4
- 2.Qxc4#
- 1...Qb5
- 2.c4#
- 1...Qa6
- 2.c4#
- 1...Ra3
- 2.c3#
- 1...Rb3
- 2.cxb3#
- 1...Rd3
- 2.cxd3#
- 1...Rg5
- 2.Sxg5#
- 1...Ra6
- 2.Sg5#
- 1...Rd6
- 2.Sg5#
- 1...Sf6
- 2.Qe6#
- 1...e6
- 2.Qa8#
- threat
- 1.Sb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 7
- Sets
- Q(a);N_GUARD,P_PINB(B),P_SPINR(c)::QAR2(D)
- Q(a);OGATE,P_SPINR(c)::P(E),XQ(a)
- Q(a);N_GUARD,P_SPINR(c)::QAR2(D),XQ(a)
- Q(a);N_GUARD,P_PINQ(D),P_SPINR(c)::B(B)+P(E)
- Q(a);N_GUARD,P_PINB(B),XR(C)::QAR2(D)
- Q(a);P_SPINR(c),XP(F)::S(H),XQ(a)
- R(c);N_GUARD,P_PINQ(D),P_SPINQ(a)::B(B)+P(E)
- R(c);OGATE,P_SPINQ(a)::P(E),XR(c)
- R(h);N_GUARD,XP(I)::QAR2(D)
- R(h);N_GUARD::S(H),XR(h)
- R(h);N_GUARD,XS(J)::S(H)
- R(h);N_GUARD::S(H)
- R(h);N_GUARD,XB(K)::QAR2(D)
- S(g);S_CUTR(h)::QAR2(D)
- Tries
- Try
- S(J);XP(i)
- Threat
- QAB1(D)
- Vars
- Q(a);P_SPINR(c),XP(F)::S(H),XQ(a)
- Q(a);OGATE,P_SPINR(c)::P(E),XQ(a)
- Q(a);N_GUARD,P_SPINR(c)::QAR2(D),XQ(a)
- Q(a);N_GUARD,P_PINQ(D),P_SPINR(c)::B(B)+P(E)
- R(c);N_GUARD,P_PINQ(D),P_SPINQ(a)::B(B)+P(E)
- R(c);OGATE,P_SPINQ(a)::B(B)+P(E),XR(c)
- R(c);OGATE,P_SPINQ(a)::P(E),XR(c)
- R(h);N_GUARD::S(H),XR(h)
- R(h);N_GUARD,P_PINQ(D)::S(H)
- R(h);N_GUARD::S(H)
- S(g);S_CUTR(h)::QAR2(D)
- Refutation
- Q(a);P_SPINR(c)
- Try
- R(C);P_PINR(c),XQ(a)
- Threat
- DUALS(4)
- Vars
- R(h);N_GUARD::S(H)
- Refutation
- P(d);XP(G)
- Try
- Q(D);CHECK
- Vars
- Q(a);N_GUARD,P_SPINQ(a),P_SPINR(c)::QAR2(D),XQ(a)
- Refutation
- K(e);S_FLIGHT
- Try
- P(E);CHECK
- Vars
- Q(a);P_SPINQ(a),P_SPINR(c)::QAR2(D)
- Refutation
- R(c);P_SPINQ(a),P_SPINR(c)
- Try
- P(F);CHECK
- Vars
- Q(a);OGATE,P_SPINR(c),XP(F)::P(E),XQ(a)
- Refutation
- R(c);P_SPINQ(a),XP(F)
- Try
- Actual
- S(J);
- Threat
- QAB1(D)
- Vars
- Q(a);P_SPINR(c),XP(F)::S(H),XQ(a)
- Q(a);OGATE,P_SPINR(c)::P(E),XQ(a)
- Q(a);N_GUARD,P_SPINR(c)::QAR2(D),XQ(a)
- Q(a);N_GUARD,P_SPINR(c)::B(B)+P(E)
- Q(a);N_GUARD,P_PINQ(D),P_SPINR(c)::B(B)+P(E)
- R(c);N_GUARD,P_PINQ(D),P_SPINQ(a)::B(B)+P(E)
- R(c);OGATE,P_SPINQ(a)::B(B)+P(E),XR(c)
- R(c);OGATE,P_SPINQ(a)::P(E),XR(c)
- R(h);N_GUARD::S(H),XR(h)
- R(h);N_GUARD,P_PINQ(D)::S(H)
- R(h);N_GUARD::S(H)
- S(g);S_CUTR(h)::QAR2(D)
- P(i);S_CUTR(h)::QAB(D)
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