MESON Chess Problem Database

Problem Display
PID: 47386 (8/2K5/8/2k1P3/PN1b4/3P4/2P5/4Q3 w - - 0 1)

Willmott, Arthur

Problem Observer, 2003

8/2K5/8/2k1P3/PN1b4/3P4/2P5/4Q3

#2

7 + 2

136 Problem Observer 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Qc3#
    • 1...Bf2
      • 2.Qc3#
    • 1...Bc3
      • 2.Qxc3#
    • 1...Be3
      • 2.Qc3#
  • Keys
    • 1.c3!
      • 1...Bxe5+
        • 2.Qxe5#
      • 1...Bxc3
        • 2.Qxc3#
      • 1...Bg1
        • 2.Qxg1#
      • 1...Bf2
        • 2.Qxf2#
      • 1...Be3
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::QAR2(A)
    • B(a);N_GUARD::QAR2(A),XB(a)
  • Actual
    • P(B);
    • Vars
      • B(a);CHECK,OGATE,XP(F)::QAR2(A),XB(a)
      • B(a);OGATE,XP(B)::QAR2(A),XB(a)
      • B(a);OGATEB::QAB(A),XB(a)
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