MESON Chess Problem Database

Problem Display
PID: 138791 (2K1k3/1B6/2Rr1Q2/4P3/8/8/8/8 w - - 0 1)

Lincoln, Robert A

StrateGems, 2010

2K1k3/1B6/2Rr1Q2/4P3/8/8/8/8

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Re6#
    • 1...Rd2
      • 2.Re6#
    • 1...Rd3
      • 2.Re6#
    • 1...Rd4
      • 2.Re6#
    • 1...Rd5
      • 2.Re6#
    • 1...Rxc6+
      • 2.Bxc6#
    • 1...Re6
      • 2.Rxe6#
  • Keys
    • 1.e6!
      • threat
        • 2.Qf7#
      • 1...Rxc6+
        • 2.Bxc6#
      • 1...Rd8+
        • 2.Qxd8#
      • 1...Rxe6
        • 2.Rxe6#
      • 1...Rd7
        • 2.exd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(a);OGATE::R(B)
    • R(a);CHECK,OGATE,XR(B)::B(D),XR(a)
    • R(a);OGATE::R(B),XR(a)
  • Actual
    • P(A);
    • Threat
      • QAB1(C)
    • Vars
      • R(a);CHECK,OGATE,XR(B)::B(D),XR(a)
      • R(a);CHECK,N_GUARD::QAR1(C),XR(a)
      • R(a);OGATE,XP(A)::R(B),XR(a)
      • R(a);OGATE::P(A),XR(a)
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