MESON Chess Problem Database
Problem Display
PID: 146144 (k2N4/P1R5/r1p1R1K1/8/8/8/8/7B w - - 0 1)
Lipton, Michael
The Problemist, 1952
#2
6 + 3
| 14867 | BCPS Library | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Bxc6#
- 1...Ra2
- 2.Bxc6#
- 1...Ra3
- 2.Bxc6#
- 1...Ra4
- 2.Bxc6#
- 1...Ra5
- 2.Bxc6#
- 1...Rxa7
- 2.Rc8#
- 1...Ra1
- Tries
- 1.Kf6?
- 1...Rxa7
- 2.Rc8#
- 1...Ra1
- 2.Bxc6#
- 1...Ra2
- 2.Bxc6#
- 1...Ra3
- 2.Bxc6#
- 1...Ra4
- 2.Bxc6#
- 1...Ra5
- 2.Bxc6#
- 1...Rb6!
- 1...Rxa7
- 1.Kh6?
- 1...Rxa7
- 2.Rc8#
- 1...Ra1
- 2.Bxc6#
- 1...Ra2
- 2.Bxc6#
- 1...Ra3
- 2.Bxc6#
- 1...Ra4
- 2.Bxc6#
- 1...Ra5
- 2.Bxc6#
- 1...Rb6!
- 1...Rxa7
- 1.Sxc6?
- threat
- 2.Re8#
- 1...Rxc6
- 2.Bxc6#
- 1...Rb6!
- threat
- 1.Bg2?
- 1...Rxa7
- 2.Rc8#
- 1...Ra1
- 2.Bxc6#
- 1...Ra2
- 2.Bxc6#
- 1...Ra3
- 2.Bxc6#
- 1...Ra4
- 2.Bxc6#
- 1...Ra5
- 2.Bxc6#
- 1...Rb6!
- 1...Rxa7
- 1.Bf3?
- 1...Rxa7
- 2.Rc8#
- 1...Ra1
- 2.Bxc6#
- 1...Ra2
- 2.Bxc6#
- 1...Ra3
- 2.Bxc6#
- 1...Ra4
- 2.Bxc6#
- 1...Ra5
- 2.Bxc6#
- 1...Rb6!
- 1...Rxa7
- 1.Be4?
- 1...Rxa7
- 2.Rc8#
- 1...Ra1
- 2.Bxc6#
- 1...Ra2
- 2.Bxc6#
- 1...Ra3
- 2.Bxc6#
- 1...Ra4
- 2.Bxc6#
- 1...Ra5
- 2.Bxc6#
- 1...Rb6!
- 1...Rxa7
- 1.Re1?
- 1...Rxa7
- 2.Rc8#
- 1...Ra1
- 2.Bxc6#
- 1...Ra2
- 2.Bxc6#
- 1...Ra3
- 2.Bxc6#
- 1...Ra4
- 2.Bxc6#
- 1...Ra5
- 2.Bxc6#
- 1...Rb6!
- 1...Rxa7
- 1.Re2?
- 1...Rxa7
- 2.Rc8#
- 1...Ra1
- 2.Bxc6#
- 1...Ra2
- 2.Bxc6#
- 1...Ra3
- 2.Bxc6#
- 1...Ra4
- 2.Bxc6#
- 1...Ra5
- 2.Bxc6#
- 1...Rb6!
- 1...Rxa7
- 1.Re3?
- 1...Rxa7
- 2.Rc8#
- 1...Ra1
- 2.Bxc6#
- 1...Ra2
- 2.Bxc6#
- 1...Ra3
- 2.Bxc6#
- 1...Ra4
- 2.Bxc6#
- 1...Ra5
- 2.Bxc6#
- 1...Rb6!
- 1...Rxa7
- 1.Re5?
- 1...Rxa7
- 2.Rc8#
- 1...Ra1
- 2.Bxc6#
- 1...Ra2
- 2.Bxc6#
- 1...Ra3
- 2.Bxc6#
- 1...Ra4
- 2.Bxc6#
- 1...Ra5
- 2.Bxc6#
- 1...Rb6!
- 1...Rxa7
- 1.Rd6?
- 1...Rxa7
- 2.Rc8#
- 1...Ra1
- 2.Bxc6#
- 1...Ra2
- 2.Bxc6#
- 1...Ra3
- 2.Bxc6#
- 1...Ra4
- 2.Bxc6#
- 1...Ra5
- 2.Bxc6#
- 1...Rb6!
- 1...Rxa7
- 1.Rf6?
- 1...Rxa7
- 2.Rc8#
- 1...Ra1
- 2.Bxc6#
- 1...Ra2
- 2.Bxc6#
- 1...Ra3
- 2.Bxc6#
- 1...Ra4
- 2.Bxc6#
- 1...Ra5
- 2.Bxc6#
- 1...Rb6!
- 1...Rxa7
- 1.Kf6?
- Keys
- 1.Rexc6!
- threat
- 2.Rxa6#
- 2.Rb6#
- 1...Rxc6+
- 2.Bxc6#
- 1...Rxa7
- 2.Rc8#
- 1...Rb6
- 2.Rxb6#
- 1...Ra1
- 2.Rc1#
- 1...Ra2
- 2.Rc2#
- 1...Ra3
- 2.Rc3#
- 1...Ra4
- 2.Rc4#
- 1...Ra5
- 2.Rc5#
- threat
- 1.Rexc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 5
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::B(A),XP(b)
- R(a);SBLOCK,XP(D)::R(E)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- R(a);SBLOCK,XP(D)::R(E)
- R(a);N_GUARD::B(A),XP(b)
- Refutation
- R(a);
- Try
- K(C);P-FLIGHT
- Vars
- R(a);SBLOCK,XP(D)::R(E)
- R(a);N_GUARD::B(A),XP(b)
- Refutation
- R(a);
- Try
- S(F);XP(b)
- Threat
- R(B)
- Vars
- R(a);OGATE,P_PINR(B),P_SPINR(a),XS(F)::B(A),XR(a)
- Refutation
- R(a);
- Try
- B(A);
- Vars
- R(a);SBLOCK,XP(D)::R(E)
- R(a);N_GUARD::B(A),XP(b)
- Refutation
- R(a);
- Try
- B(A);
- Vars
- R(a);SBLOCK,XP(D)::R(E)
- R(a);N_GUARD::B(A),XP(b)
- Refutation
- R(a);
- Try
- B(A);
- Vars
- R(a);SBLOCK,XP(D)::R(E)
- R(a);N_GUARD::B(A),XP(b)
- Refutation
- R(a);
- Try
- R(B);
- Vars
- R(a);SBLOCK,XP(D)::R(E)
- R(a);N_GUARD::B(A),XP(b)
- Refutation
- R(a);
- Try
- R(B);
- Vars
- R(a);SBLOCK,XP(D)::R(E)
- R(a);N_GUARD::B(A),XP(b)
- Refutation
- R(a);
- Try
- R(B);
- Vars
- R(a);SBLOCK,XP(D)::R(E)
- R(a);N_GUARD::B(A),XP(b)
- Refutation
- R(a);
- Try
- R(B);
- Vars
- R(a);SBLOCK,XP(D)::R(E)
- R(a);N_GUARD::B(A),XP(b)
- Refutation
- R(a);
- Try
- R(B);
- Vars
- R(a);SBLOCK,XP(D)::R(E)
- R(a);N_GUARD::B(A),XP(b)
- Refutation
- R(a);
- Try
- R(B);
- Vars
- R(a);SBLOCK,XP(D)::R(E)
- R(a);N_GUARD::B(A),XP(b)
- Refutation
- R(a);
- Try
- Actual
- R(B);P_SPINR(B),XP(b)
- Threat
- DUALS(2)
- Vars
- R(a);CHECK,OGATE,P_SPINR(a),XR(B)::B(A),XR(a)
- R(a);N_PINR(B),SBLOCK,XP(D)::R(E)
- R(a);::B(A)+R(B),XR(a)
- R(a);N_PINR(B)::B(A)+R(B)
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