MESON Chess Problem Database

Problem Display
PID: 92267 (8/5N2/8/8/1K2k3/4P2B/8/2Q5 w - - 0 1)

Kardos, Tivadar

Schachecke, 1970

8/5N2/8/8/1K2k3/4P2B/8/2Q5

#2

5 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qh1#
      • 2.Qc4#
  • Tries
    • 1.Sg5+?
      • 1...Kd3
        • 2.Bf1#
      • 1...Kd5
        • 2.Qc5#
      • 1...Ke5!
    • 1.Bg4?
      • 1...Kd5
        • 2.Qh1#
        • 2.Qc4#
      • 1...Kd3!
    • 1.Qa3?
      • 1...Kd5
        • 2.Qa8#
      • 1...Kf3!
    • 1.Qf1?
      • 1...Kd5
        • 2.Qg2#
        • 2.Qc4#
        • 2.Qh1#
        • 2.Qf3#
      • 1...Kxe3!
    • 1.Qc3?
      • 1...Kd5
        • 2.Qc4#
      • 1...Kf3!
  • Keys
    • 1.Qe1!
      • 1...Kd3
        • 2.Bf5#
      • 1...Kf3
        • 2.Sg5#
      • 1...Kd5
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(a);S_FLIGHT::B(C)
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(C);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT::B(C)
      • K(a);S_FLIGHT::S(E)
      • K(a);S_FLIGHT::QAB(A)
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