MESON Chess Problem Database

Problem Display
PID: 24921 (8/3p4/3QNk1K/8/8/7b/8/1R6 w - - 0 1)

Barthelemy, Edmond

Miniatures Strategiques, 1935

8/3p4/3QNk1K/8/8/7b/8/1R6

#2

4 + 3

3295 Einfuhrung in die Welt des Schachproblem 1984
2838 Fun with Chess Miniatures 1996
133 The Problemist Supplement 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Rxf1#
    • 1...Bxe6
      • 2.Rf1#
  • Tries
    • 1.Sd4+?
      • 1...Be6
        • 2.Rf1#
      • 1...Kf7!
    • 1.Sg5+?
      • 1...Be6
        • 2.Rf1#
      • 1...Kf5!
    • 1.Sg7+?
      • 1...Be6
        • 2.Rf1#
      • 1...Kf7!
    • 1.Sd8+?
      • 1...Be6
        • 2.Rf1#
      • 1...Kf5!
    • 1.Rf1+?
      • 1...Bf5
        • 2.Sg5#
        • 2.Sd8#
      • 1...Bxf1!
    • 1.Rb8?
      • threat
        • 2.Rf8#
      • 1...Kf7
        • 2.Sg5#
        • 2.Rf8#
      • 1...Kf5!
  • Keys
    • 1.Re1!
      • threat
        • 2.Qf8#
      • 1...Kf5
        • 2.Qf4#
      • 1...Kf7
        • 2.Qf8#
      • 1...Bxe6
        • 2.Rf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::R(A),XB(a)
    • B(a);N_GUARD,P_SPINB(a),XS(C)::R(A)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • B(a);P_SPINB(a)::R(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • B(a);P_SPINB(a)::R(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • B(a);P_SPINB(a)::R(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • B(a);P_SPINB(a)::R(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(A);CHECK
      • Refutation
        • B(a);XR(A)
    • Try
      • R(A);
      • Threat
        • R(A)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • R(A);
    • Threat
      • QAR2(B)
    • Vars
      • K(b);P-FLIGHT::QAR1(B)
      • B(a);N_GUARD,P_SPINB(a),XS(C)::R(A)
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