MESON Chess Problem Database

Problem Display
PID: 206645 (8/8/8/3p3p/3Q1K1B/8/4k3/8 w - - 0 1)

Kovacs, Florian Janos

Tribune de Geneve, 1925

8/8/8/3p3p/3Q1K1B/8/4k3/8

#2

3 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kf1
      • 2.Qf2#
  • Tries
    • 1.Kg3?
      • 1...Kf1
        • 2.Qf2#
        • 2.Qd1#
      • 1...Ke1!
    • 1.Ke5?
      • 1...Kf1
        • 2.Qf2#
      • 1...Kf3!
    • 1.Kg5?
      • 1...Kf1
        • 2.Qf2#
      • 1...Kf3!
    • 1.Bg3?
      • 1...Kf1
        • 2.Qf2#
      • 1...h4!
    • 1.Qe3+?
      • 1...Kf1
        • 2.Qf2#
      • 1...Kd1!
    • 1.Qd2+?
      • 1...Kf1
        • 2.Qf2#
      • 1...Kxd2!
  • Keys
    • 1.Kf5!
      • 1...Kf1
        • 2.Qf2#
      • 1...Kf3
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(A)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
  • Actual
    • K(B);P-FLIGHT
    • Vars
      • K(a);S_FLIGHT::QAR1(A)
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