MESON Chess Problem Database
Problem Display
PID: 153282 (2R5/8/8/8/Kp6/8/k3r3/2QN4 w - - 0 1)
Lincoln, Robert A
StrateGems, 2012
#2
4 + 3
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Rc2#
- 2.Qb2#
- 1...Rb2
- 2.Qxb2#
- 1...Rc2
- 2.Rxc2#
- 1...Re3
- 2.Rc2#
- 2.Qb2#
- 1...Re4
- 2.Rc2#
- 2.Qb2#
- 1...Re5
- 2.Rc2#
- 2.Qb2#
- 1...Re6
- 2.Rc2#
- 2.Qb2#
- 1...Re7
- 2.Rc2#
- 2.Qb2#
- 1...Re8
- 2.Rc2#
- 2.Qb2#
- 1...b3
- 2.Sc3#
- 1...Re1
- Tries
- 1.Kxb4?
- threat
- 2.Sc3#
- 2.Ra8#
- 1...Rb2+
- 2.Qxb2#
- 1...Rc2
- 2.Rxc2#
- 2.Ra8#
- 1...Re3
- 2.Rc2#
- 2.Qb2#
- 1...Re5
- 2.Sc3#
- 2.Rc2#
- 2.Qb2#
- 1...Re6
- 2.Sc3#
- 2.Rc2#
- 2.Qb2#
- 1...Re7
- 2.Sc3#
- 2.Rc2#
- 2.Qb2#
- 1...Re8
- 2.Sc3#
- 2.Rc2#
- 2.Qb2#
- 1...Re4+!
- threat
- 1.Qd2+?
- 1...Ka1
- 2.Rc1#
- 1...Kb1
- 2.Rc1#
- 1...Rxd2!
- 1...Ka1
- 1.Qa3+?
- 1...Kb1
- 2.Rc1#
- 1...bxa3!
- 1...Kb1
- 1.Kxb4?
- Keys
- 1.Ra8!
- threat
- 2.Kxb4#
- 1...Rb2
- 2.Qxb2#
- 1...Re3
- 2.Qb2#
- 1...Re4
- 2.Qb2#
- 1...Re5
- 2.Qb2#
- 1...Re6
- 2.Qb2#
- 1...Re7
- 2.Qb2#
- 1...Re8
- 2.Qb2#
- 1...b3
- 2.Kb4#
- 2.Kb5#
- 2.Sc3#
- threat
- 1.Ra8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 2
- Sets
- R(b);N_GUARD::QAR1(A),XR(b)
- R(b);N_GUARD::R(D),XR(b)
- P(c);N_GUARD::S(B)
- Tries
- Try
- K(C);P-FLIGHT,XP(c)
- Threat
- DUALS(2)
- Vars
- R(b);CHECK,N_GUARD::QAR1(A),XR(b)
- Refutation
- R(b);CHECK
- Try
- Q(A);CHECK
- Vars
- K(a);P-FLIGHT::R(D)
- K(a);S_FLIGHT::R1(D)
- Refutation
- R(b);XQ(A)
- Try
- Q(A);CHECK
- Vars
- K(a);S_FLIGHT::R1(D)
- Refutation
- P(c);XQ(A)
- Try
- Actual
- R(D);
- Threat
- R(D)+K(C),XP(c)
- Vars
- R(b);N_GUARD::QAR1(A),XR(b)
- R(b);N_GUARD::QAR1(A)
Developed and maintained by Brian Stephenson.
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