MESON Chess Problem Database

Problem Display
PID: 7987 (6k1/1pp1K2p/4RB1p/5p2/2np4/1R3p2/B7/8 w - - 0 1)

Rice, John Michael

Chess Problems for Solving, 1995

6k1/1pp1K2p/4RB1p/5p2/2np4/1R3p2/B7/8

#2

5 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...f2
      • 2.Rg3#
  • Tries
    • 1.Rb1?
      • threat
        • 2.Rg1#
      • 1...Se3
        • 2.Rxe3#
      • 1...Se5
        • 2.Rxe5#
      • 1...f2!
    • 1.Rxf3?
      • threat
        • 2.Rg3#
      • 1...Se3
        • 2.Rexe3#
      • 1...Se5
        • 2.Rxe5#
      • 1...f4!
    • 1.Re1?
      • threat
        • 2.Rg1#
      • 1...Se3
        • 2.Rbxe3#
      • 1...f2
        • 2.Rg3#
      • 1...Se5!
    • 1.Ra6?
      • threat
        • 2.Ra8#
      • 1...bxa6
        • 2.Rb8#
      • 1...Sb6
        • 2.Rbxb6#
      • 1...Sd6!
  • Keys
    • 1.Rxb7!
      • threat
        • 2.Rb8#
      • 1...Sb6
        • 2.Rexb6#
      • 1...Sd6
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(a);OGATE::R(B)
  • Tries
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • S(b);OGATEB::B(A)+R(C),XS(b)
      • Refutation
        • P(a);
    • Try
      • R(B);XP(a)
      • Threat
        • R(B)
      • Vars
        • S(b);OGATEB::B(A)+R(C),XS(b)
      • Refutation
        • P(d);
    • Try
      • R(C);
      • Threat
        • R(C)
      • Vars
        • S(b);OGATEB::B(A)+R(B),XS(b)
        • P(a);OGATE::R(B)
      • Refutation
        • S(b);
    • Try
      • R(C);
      • Threat
        • R(C)
      • Vars
        • P(f);OGATE,XR(C)::R(B)
        • S(b);OGATEB::B(A)+R(B),XS(b)
      • Refutation
        • S(b);
  • Actual
    • R(B);XP(f)
    • Threat
      • R(B)
    • Vars
      • S(b);OGATEB::B(A)+R(C),XS(b)
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