MESON Chess Problem Database

Problem Display
PID: 997 (7b/2Rp4/8/1p1k4/1B2rP2/4P2B/6Q1/4K3 w - - 0 1)

Guttman, Newman

The Problemist Supplement, 1996

7b/2Rp4/8/1p1k4/1B2rP2/4P2B/6Q1/4K3

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Qa2#
    • 1...Be5
      • 2.Qg8#
  • Tries
    • 1.Qd2+?
      • 1...Bd4
        • 2.Qa2#
      • 1...Rd4!
    • 1.Qg5+?
      • 1...Be5
        • 2.Qg8#
      • 1...Re5!
  • Keys
    • 1.Qg8+!
      • 1...Re6
        • 2.Bg2#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(e);::QAB(B)
  • Tries
    • Try
      • Q(B);CHECK,N_PINR(a)
      • Vars
        • B(e);P_SPINB(e),S_CUTR(a)::QAB(B)
      • Refutation
        • R(a);N_PINP(C),P_SPINR(a)
    • Try
      • Q(B);CHECK,N_PINR(a)
      • Vars
        • B(e);P_SPINB(e),S_CUTR(a)::QAB(B)
      • Refutation
        • R(a);P_SPINR(a)
  • Actual
    • Q(B);CHECK,N_PINR(a)
    • Vars
      • R(a);P_SPINR(a)::B(D)
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Developed and maintained by Brian Stephenson.
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