MESON Chess Problem Database

Problem Display
PID: 53724 (6Q1/1p5K/1B6/1p1N1pP1/2k1bRPR/r2p4/1P6/2N1n3 w - - 0 1)

Beale, John Lindsay

Chess Life, 1955

6Q1/1p5K/1B6/1p1N1pP1/2k1bRPR/r2p4/1P6/2N1n3

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.b3#
    • 1...Ra2
      • 2.b3#
    • 1...Ra4
      • 2.b3#
    • 1...Ra5
      • 2.b3#
    • 1...Ra6
      • 2.b3#
    • 1...Ra7
      • 2.b3#
    • 1...Ra8
      • 2.b3#
    • 1...b4
      • 2.Sc3#
      • 2.Sc7#
    • 1...fxg4+
      • 2.Rxe4#
  • Keys
    • 1.Rxf5!
      • threat
        • 2.Qc8#
      • 1...Bxf5+
        • 2.gxf5#
      • 1...Bxd5
        • 2.Rf4#
      • 1...b4
        • 2.Se3#
      • 1...Ra8
        • 2.b3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • R(b);N_GUARD::P(B)
    • P(g);CHECK,N_GUARD,XP(D)::R(C),XB(e)
  • Actual
    • R(C);N_PINB(e),P_SPINR(C),XP(g)
    • Threat
      • QAR(J)
    • Vars
      • B(e);CHECK,OGATE,XR(C)::R(E)+P(D),XB(e)
      • B(e);N_PINR(C),P_SPINB(e),XS(F)::R(C)
      • P(f);SBLOCK::QAB(J)+S(F),DCHECK
      • R(b);N_GUARD::P(B)
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