MESON Chess Problem Database

Problem Display
PID: 239231 (8/2pp4/2p5/2k3K1/8/1Q6/3B1N2/8 w - - 0 1)

Kozhakina, Alena Vladimirova

Comm., Kudesnik, 2004

8/2pp4/2p5/2k3K1/8/1Q6/3B1N2/8

#2

4 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Qb4#
    • 1...d6
      • 2.Be3#
  • Tries
    • 1.Kf4?
      • 1...Kd4
        • 2.Be3#
      • 1...d5
        • 2.Qb4#
      • 1...d6
        • 2.Be3#
      • 1...Kd6!
    • 1.Kf5?
      • 1...Kd4
        • 2.Be3#
      • 1...d5
        • 2.Qb4#
      • 1...d6
        • 2.Be3#
      • 1...Kd6!
    • 1.Bc3?
      • threat
        • 2.Se4#
      • 1...d5
        • 2.Qb4#
      • 1...Kd6!
  • Keys
    • 1.Kf6!
      • 1...Kd4
        • 2.Be3#
      • 1...Kd6
        • 2.Se4#
      • 1...d5
        • 2.Qb4#
      • 1...d6
        • 2.Be3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(d);SBLOCK::QAB1(C)
    • P(d);SBLOCK::B(A)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(A)
        • P(d);SBLOCK::QAB1(C)
        • P(d);SBLOCK::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(A)
        • P(d);SBLOCK::QAB1(C)
        • P(d);SBLOCK::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Threat
        • S(B)
      • Vars
        • P(d);SBLOCK::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(D);S_FLIGHT
    • Vars
      • K(a);S_FLIGHT::B(A)
      • K(a);S_FLIGHT::S(B)
      • P(d);SBLOCK::QAB1(C)
      • P(d);SBLOCK::B(A)
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