MESON Chess Problem Database

Problem Display
PID: 205717 (8/8/2K5/6B1/3k4/5P2/2Q5/8 w - - 0 1)

de Savignac Castelet, G Arnaud

La Strategie, 1925

8/8/2K5/6B1/3k4/5P2/2Q5/8

#2

4 + 1

5454 Near Snap 2020
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qe4#
  • Tries
    • 1.Kc7?
      • 1...Ke5
        • 2.Qe4#
      • 1...Kd5!
    • 1.Kd7?
      • 1...Ke5
        • 2.Qe4#
        • 2.Qc5#
      • 1...Kd5!
    • 1.Bh4?
      • 1...Ke5
        • 2.Qe4#
      • 1...Ke3!
    • 1.Be7?
      • 1...Ke5
        • 2.Qe4#
      • 1...Ke3!
    • 1.Bd8?
      • 1...Ke5
        • 2.Qe4#
      • 1...Ke3!
    • 1.Qd3+?
      • 1...Ke5
        • 2.Qe4#
        • 2.Qd5#
      • 1...Kxd3!
    • 1.Qd2+?
      • 1...Ke5
        • 2.Qd5#
      • 1...Kc4!
    • 1.Qc4+?
      • 1...Ke5
        • 2.Qd5#
        • 2.Qe4#
      • 1...Kxc4!
  • Keys
    • 1.Qb3!
      • 1...Ke5
        • 2.Qd5#

This anticipates 88409(1931)

FEATURES

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