MESON Chess Problem Database

Problem Display
PID: 168562 (8/1K1k1N2/8/1R6/2B1R3/8/1r6/8 w - - 0 1)

Lincoln, Robert A

StrateGems, 2017

8/1K1k1N2/8/1R6/2B1R3/8/1r6/8

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Rd5#
    • 1...Rc2
      • 2.Rd5#
    • 1...Re2
      • 2.Rd5#
    • 1...Rf2
      • 2.Rd5#
    • 1...Rg2
      • 2.Rd5#
    • 1...Rh2
      • 2.Rd5#
    • 1...Rxb5+
      • 2.Bxb5#
  • Tries
    • 1.Bf1?
      • threat
        • 2.Bh3#
      • 1...Rxb5+
        • 2.Bxb5#
      • 1...Rf2
        • 2.Rd5#
      • 1...Rg2
        • 2.Rd5#
      • 1...Rh2
        • 2.Rd5#
      • 1...Rb3!
    • 1.Rb3?
      • threat
        • 2.Bb5#
      • 1...Rc2
        • 2.Rd3#
      • 1...Rxb3+!
  • Keys
    • 1.Be2!
      • threat
        • 2.Bg4#
      • 1...Rxb5+
        • 2.Bxb5#
      • 1...Rxe2
        • 2.Rd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • R(a);N_PINR(C)::R(C)
    • R(a);CHECK,OGATE,XR(C)::B(A),XR(a)
  • Tries
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • R(a);CHECK,OGATE,XR(C)::B(A),XR(a)
        • R(a);N_PINR(C)::R(C)
      • Refutation
        • R(a);
    • Try
      • R(C);
      • Threat
        • B(A)
      • Vars
        • R(a);N_PINR(C)::R(C)
      • Refutation
        • R(a);CHECK,XR(C)
  • Actual
    • B(A);
    • Threat
      • B(A)
    • Vars
      • R(a);CHECK,OGATE,XR(C)::B(A),XR(a)
      • R(a);N_PINR(C),XB(A)::R(C)
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Developed and maintained by Brian Stephenson.
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