MESON Chess Problem Database

Problem Display
PID: 72842 (8/1k6/2N1P3/PP2K3/4N3/1Q6/8/8 w - - 0 1)

Rukavina, Dario

Problem Online, 2004

8/1k6/2N1P3/PP2K3/4N3/1Q6/8/8

#2

7 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Qd1?
      • 1...Kc7
        • 2.Qd7#
      • 1...Kc8
        • 2.Qd7#
      • 1...Ka8!
    • 1.Qd5?
      • 1...Kc7
        • 2.Qd7#
      • 1...Kc8
        • 2.Qd7#
      • 1...Ka8!
    • 1.Qd3?
      • 1...Kc7
        • 2.Qd7#
      • 1...Kc8
        • 2.Qd7#
      • 1...Ka8!
  • Keys
    • 1.b6!
      • 1...Ka6
        • 2.Sc5#
      • 1...Kxc6
        • 2.Qd5#
      • 1...Ka8
        • 2.b7#
      • 1...Kc8
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • P(D);
    • Vars
      • K(a);S_FLIGHT::S(B)
      • K(a);OGATEB,S_FLIGHT,XS(F)::QAB1(A)
      • K(a);OGATE,S_FLIGHT::P(D)
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