MESON Chess Problem Database
Problem Display
PID: 10634 (B3k1K1/5Np1/3R4/R1N5/2p4B/3rq3/4Q3/4r2b w - - 0 1)
Lipton, Michael
1st HM., Probleemblad, 1966
#2
8 + 7
| 56 | The Problemist | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Qe4
- 2.Bc6#
- 1...Qe6
- 2.Rxe6#
- 1...Ra3
- 2.Rd8#
- 1...Rb3
- 2.Rd8#
- 1...Rc3
- 2.Rd8#
- 1...Rd5
- 2.Bc6#
- 1...Rxd6
- 2.Sxd6#
- 1...Be4
- 2.Re6#
- 1...Bd5
- 2.Rd8#
- 1...Bc6
- 2.Bxc6#
- 1...Bxa8
- 2.Rxa8#
- 1...Qe4
- Tries
- 1.Se4?
- threat
- 2.Bc6#
- 2.Re5#
- 1...Qxe4
- 2.Bc6#
- 1...Bxe4
- 2.Re5#
- 1...Qg5
- 2.Sf6#
- 1...g5
- 2.Re5#
- 1...Qd4
- 2.Sf6#
- 2.Bc6#
- 1...Qf4
- 2.Sf6#
- 2.Bc6#
- 1...Qc5
- 2.Sf6#
- 1...Qb6
- 2.Sf6#
- 2.Re5#
- 1...Qh6
- 2.Sf6#
- 2.Bc6#
- 1...Qa7
- 2.Sf6#
- 1...Qg3
- 2.Sf6#
- 2.Bc6#
- 1...Qh3
- 2.Sf6#
- 1...Rd5
- 2.Bc6#
- 1...Rxd6!
- threat
- 1.Bxh1?
- threat
- 2.Bc6#
- 2.Ra8#
- 1...Rxh1
- 2.Ra8#
- 1...Rxd6
- 2.Sxd6#
- 1...Qe4
- 2.Ra8#
- 1...Ra1
- 2.Bc6#
- 1...Rb1
- 2.Bc6#
- 1...Ra3
- 2.Bc6#
- 2.Rd8#
- 1...Rb3
- 2.Bc6#
- 2.Rd8#
- 1...Rd5
- 2.Ra8#
- 1...g5!
- threat
- 1.Bd5?
- threat
- 2.Ra8#
- 2.Rd8#
- 1...Rxd5
- 2.Ra8#
- 1...Bxd5
- 2.Rd8#
- 1...Ra1
- 2.Rd8#
- 1...Rb1
- 2.Rd8#
- 1...Ra3
- 2.Rd8#
- 1...Rb3
- 2.Rd8#
- 1...g5!
- threat
- 1.Qxe3+?
- 1...Rdxe3
- 2.Rd8#
- 1...Be4
- 2.Bc6#
- 2.Re6#
- 1...Rexe3!
- 1...Rdxe3
- 1.Se4?
- Keys
- 1.Be4!
- threat
- 2.Ra8#
- 2.Re6#
- 1...Qxc5
- 2.Bc6#
- 1...Qxe4
- 2.Ra8#
- 1...Rxd6
- 2.Sxd6#
- 1...Bxe4
- 2.Re6#
- 1...Qg5
- 2.Bc6#
- 1...g5
- 2.Re6#
- 1...Qh6
- 2.Bc6#
- 2.Ra8#
- 1...Qh3
- 2.Bc6#
- 1...Ra1
- 2.Re6#
- 1...Rb1
- 2.Re6#
- 1...Ra3
- 2.Re6#
- 2.Rd8#
- 1...Rb3
- 2.Re6#
- 2.Rd8#
- threat
- 1.Be4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 8
- Sets
- Q(d);S_CUTB(b)::B(G)
- Q(d);N_GUARD,P_PINS(F)::R(E),XQ(d)
- R(c);N_GUARD::R1(E)
- R(c);S_CUTB(b)::B(G)
- R(c);XR(E)::S(F),XR(c)
- B(b);N_SPINQ(d),S_CUTQ(d)::R(E)
- B(b);P_PINS(F),S_CUTR(c)::R1(E)
- B(b);N_GUARD::B(G),XB(b)
- B(b);OGATE,XB(G)::R(C),XB(b)
- Tries
- Try
- S(D);N_PINQ(d)
- Threat
- DUALS(2)
- Vars
- Q(d);P_SPINQ(d),XS(D)::B(G)
- B(b);XS(D)::R(C)
- Q(d);::QAR(A)+S(D),DCHECK
- P(f);::R(C)
- R(c);::B(G)
- Refutation
- R(c);XR(E)
- Try
- B(G);XB(b)
- Threat
- DUALS(2)
- Vars
- R(a);XB(G)::R(C)
- R(c);XR(E)::S(F),XR(c)
- Q(d);::R(C)
- R(a);::B(G)
- R(c);::R(C)
- Refutation
- P(f);
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- R(c);XB(G)::R(C)
- B(b);P_PINS(F),XB(G)::R1(E)
- R(a);::R1(E)
- R(c);::R1(E)
- Refutation
- P(f);
- Try
- Q(A);CHECK,XQ(d)
- Vars
- R(c);XQ(A)::R1(E)
- Refutation
- R(a);XQ(A)
- Try
- Actual
- B(G);N_PINQ(d)
- Threat
- DUALS(2)
- Vars
- Q(d);XS(D)::QAR(A)+B(G),DCHECK
- Q(d);P_SPINQ(d),XB(G)::R(C)
- R(c);XR(E)::S(F),XR(c)
- B(b);XB(G)::R(E)
- Q(d);::QAR(A)+B(G),DCHECK
- P(f);::R(E)
- R(a);::R(E)
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