MESON Chess Problem Database

Problem Display
PID: 4963 (8/8/8/1K2N3/4k3/3N4/3P2R1/Q7 w - - 0 1)

Pradignat, Emile Leonard

La Strategie, 1895

8/8/8/1K2N3/4k3/3N4/3P2R1/Q7

#2

6 + 1

4883 Still More Fun with Chess Miniatures 2002
136 Problem Observer 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Sc4?
      • 1...Kf3
        • 2.Qa8#
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Kxd3!
    • 1.Sc6?
      • 1...Kxd3
        • 2.Qb1#
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Kf3!
    • 1.Sg6?
      • 1...Kf3
        • 2.Qa8#
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Kxd3!
    • 1.Sd7?
      • 1...Kf3
        • 2.Qa8#
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Kxd3!
    • 1.Sf7?
      • 1...Kf3
        • 2.Qa8#
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Kxd3!
    • 1.Qa2?
      • 1...Kd4
        • 2.Rg4#
        • 2.Qc4#
      • 1...Kf5!
    • 1.Qa8+?
      • 1...Kd4
        • 2.Rg4#
      • 1...Kf5!
  • Keys
    • 1.Sf3!
      • 1...Kxd3
        • 2.Qb1#
      • 1...Kxf3
        • 2.Qa8#
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Vars
        • K(a);S_FLIGHT::QAB(A)
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • S(F);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(D)::QAB(A)
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(F);
      • Vars
        • K(a);S_FLIGHT::QAB(A)
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • S(F);
      • Vars
        • K(a);S_FLIGHT::QAB(A)
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • S(F);
      • Vars
        • K(a);S_FLIGHT::QAB(A)
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • Q(A);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(F);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(D)::QAB(A)
      • K(a);S_FLIGHT,XS(F)::QAB(A)
      • K(a);S_FLIGHT::QAR1(A)
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