MESON Chess Problem Database

Problem Display
PID: 205693 (3N4/8/2K5/2P1k3/8/5Q2/3P4/8 w - - 0 1)

de Savignac Castelet, G Arnaud

La Strategie, 1925

3N4/8/2K5/2P1k3/8/5Q2/3P4/8

#2

5 + 1

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qd5#
  • Tries
    • 1.Sb7?
      • 1...Kd4
        • 2.Qd5#
      • 1...Ke6!
    • 1.Sf7+?
      • 1...Kd4
        • 2.Qd5#
      • 1...Ke6!
    • 1.Qf5+?
      • 1...Kd4
        • 2.Qd5#
      • 1...Kxf5!
    • 1.Qf7?
      • 1...Kd4
        • 2.Qd5#
      • 1...Ke4!
  • Keys
    • 1.Kb5!
      • 1...Kd4
        • 2.Sc6#

FEATURES

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