MESON Chess Problem Database

Problem Display
PID: 187373 (8/8/3K4/p1B5/kpQ5/1p6/8/8 w - - 0 1)

Lincoln, Robert A

Sp. Prize, Chernobyl Ty., 2016

8/8/3K4/p1B5/kpQ5/1p6/8/8

#2

3 + 4

145 StrateGems 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Kc6?
      • 1...b2
        • 2.Qa2#
      • 1...Ka3!
    • 1.Qf1?
      • 1...Ka3
        • 2.Qa1#
      • 1...b2!
  • Keys
    • 1.Bxb4!
      • threat
        • 2.Bc5#
      • 1...axb4
        • 2.Qa6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • P(a);OGATE::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);N_PINP(c)
      • Vars
        • K(b);P-FLIGHT,P_SPINP(c)::QAR2(A)
      • Refutation
        • P(a);
  • Actual
    • B(B);XP(c)
    • Threat
      • QAR(A)+B(B)
    • Vars
      • P(d);OGATEB,P_SPINP(d),SBLOCK,XB(B)::QAR2(A)
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