MESON Chess Problem Database

Problem Display
PID: 23037 (8/7R/8/8/8/6P1/R6B/4Kn1k w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

8/7R/8/8/8/6P1/R6B/4Kn1k

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Rg2?
      • threat
        • 2.Rg1#
      • 1...Sxh2
        • 2.Rhxh2#
      • 1...Kxg2!
  • Keys
    • 1.Kf2!
      • 1...Sxh2
        • 2.Ra1#
      • 1...Sxg3
        • 2.Bxg3#
      • 1...Sd2
        • 2.Bg1#
      • 1...Se3
        • 2.Bg1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Threat
        • R1(B)
      • Vars
        • S(a);OGATE,P_SPINS(a),XB(C)::R1(E),XS(a)
      • Refutation
        • K(b);S_FLIGHT,XR(B)
  • Actual
    • K(A);S_FLIGHT
    • Vars
      • S(a);OGATEB,P_SPINS(a),XB(C)::R(B)
      • S(a);OGATE,XP(D)::R(E)+B(C),XS(a)
      • S(a);N_GUARD::R(E)+B(C)
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