MESON Chess Problem Database

Problem Display
PID: 140895 (8/3k4/3N2P1/Q2N3B/K7/8/8/8 w - - 0 1)

Aberman, Victor

Problemist Ukraini 03. TT, 2010

8/3k4/3N2P1/Q2N3B/K7/8/8/8

#2

6 + 1

15148 Sadier Collection 2011

SOLUTION

  • SOUND
  • Tries
    • 1.Sc4?
      • 1...Kc6
        • 2.Qb5#
      • 1...Ke6
        • 2.Bg4#
      • 1...Kc8
        • 2.Qc7#
      • 1...Ke8!
    • 1.Sb7?
      • 1...Kc6
        • 2.Qb5#
      • 1...Kc8
        • 2.Qc7#
      • 1...Ke8
        • 2.Qd8#
      • 1...Ke6!
    • 1.Qc5?
      • 1...Kd8
        • 2.Qc7#
        • 2.Qc8#
      • 1...Ke6!
    • 1.Qa6?
      • 1...Kd8
        • 2.Qc8#
      • 1...Ke6!
  • Keys
    • 1.Sf7!
      • 1...Kc6
        • 2.Qb5#
      • 1...Ke6
        • 2.Bg4#
      • 1...Kc8
        • 2.Qc7#
      • 1...Ke8
        • 2.Qd8#

FEATURES

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