MESON Chess Problem Database

Problem Display
PID: 94989 (8/8/1K6/4k3/2Q4B/8/8/1B6 w - - 0 1)

Hudak, Stanislav

Pravda, 2003

8/8/1K6/4k3/2Q4B/8/8/1B6

#2

4 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Ba2?
      • 1...Kd6
        • 2.Qd5#
        • 2.Qe6#
        • 2.Qd4#
        • 2.Qc7#
      • 1...Kf5!
    • 1.Be4?
      • 1...Kd6
        • 2.Qd5#
      • 1...Kf4!
    • 1.Bf5?
      • 1...Kd6
        • 2.Qe6#
        • 2.Qd4#
        • 2.Qc5#
      • 1...Kxf5!
    • 1.Bf6+?
      • 1...Kd6
        • 2.Qc6#
      • 1...Kxf6!
    • 1.Qb3?
      • 1...Kd4
        • 2.Bf6#
      • 1...Kf4
        • 2.Qg3#
      • 1...Kd6!
    • 1.Qd3?
      • 1...Kf4
        • 2.Qe4#
        • 2.Qg3#
      • 1...Ke6!
    • 1.Qd5+?
      • 1...Kf4
        • 2.Qe4#
      • 1...Kxd5!
    • 1.Qe6+?
      • 1...Kd4
        • 2.Bf6#
      • 1...Kf4
        • 2.Qe4#
      • 1...Kxe6!
    • 1.Qf7?
      • 1...Kd6
        • 2.Bg3#
      • 1...Kd4!
  • Keys
    • 1.Qc6!
      • 1...Kd4
        • 2.Qc5#
      • 1...Kf4
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Refutation
        • K(a);P-FLIGHT,XB(A)
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XB(C)
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::B(C)
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::B(C)
        • K(a);OGATE,S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);S_FLIGHT::QAR1(B)
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