MESON Chess Problem Database

Problem Display
PID: 15686 (qnk3K1/1R6/3B4/8/8/1Q6/8/8 w - - 0 1)

van Atten, Jasper

2nd HM., Buletin Problemistic, 1987

qnk3K1/1R6/3B4/8/8/1Q6/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qe6+?
      • 1...Kd8
        • 2.Bc7#
      • 1...Sd7
        • 2.Qxd7#
      • 1...Kxb7!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qc7#
      • 1...Kd8
        • 2.Qf8#
      • 1...Qxb7
        • 2.Qe8#
      • 1...Sd7
        • 2.Qxd7#
      • 1...Qa2
        • 2.Rxb8#
      • 1...Qa5
        • 2.Rxb8#
      • 1...Sa6
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);P-FLIGHT::B(B)
        • S(b);N_GUARD,P_SPINS(b)::QAB1(A),XS(b)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(c);P-FLIGHT::QAR2(A)
      • Q(a);SBLOCK,XR(C)::QAR2(A)
      • S(b);N_GUARD::QAB1(A),XS(b)
      • Q(a);N_GUARD,P_PINQ(A)::R1(C),XS(b)
      • Q(a);N_GUARD::R1(C),XS(b)
      • S(b);N_GUARD::QAB1(A)
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