MESON Chess Problem Database

Problem Display
PID: 23871 (K6b/1R5r/6P1/8/k7/8/8/1R6 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

K6b/1R5r/6P1/8/k7/8/8/1R6

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Ra7#
    • 1...Rh2
      • 2.Ra7#
    • 1...Rh3
      • 2.Ra7#
    • 1...Rh4
      • 2.Ra7#
    • 1...Rh6
      • 2.Ra7#
    • 1...Rg7
      • 2.Ra1#
    • 1...Ba1
      • 2.Rxa1#
    • 1...Bg7
      • 2.Ra7#
  • Keys
    • 1.g7!
      • threat
        • 2.Ra1#
        • 2.Ra7#
      • 1...Ka3
        • 2.Ra1#
        • 2.Ra7#
      • 1...Ka5
        • 2.Ra1#
        • 2.Ra7#
      • 1...Rxg7
        • 2.Ra1#
      • 1...Bxg7
        • 2.Ra7#
      • 1...Rh1
        • 2.Ra7#
      • 1...Rh2
        • 2.Ra7#
      • 1...Rh3
        • 2.Ra7#
      • 1...Rh5
        • 2.Ra1#
      • 1...Rh6
        • 2.Ra1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(b);N_GUARD::R(C)
    • R(b);N_GUARD,SBLOCK::R(C)
    • R(b);S_CUTB(c)::R(A)
    • B(c);N_GUARD::R(A),XB(c)
    • B(c);S_CUTR(b)::R(C)
  • Actual
    • P(B);
    • Threat
      • DUALS(2)
    • Vars
      • R(b);XP(B)::R(A)
      • B(c);XP(B)::R(C)
      • R(b);::R(C)
      • R(b);SBLOCK::R(C)
      • R(b);::R(A)
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