MESON Chess Problem Database

Problem Display
PID: 262156 (2B5/2p2Kn1/8/b1pk4/P1N3pR/8/4P3/4Q3 w - - 0 1)

Prichard, EJ

The Field, 1888

(First published on Sat Feb 18 1888)

2B5/2p2Kn1/8/b1pk4/P1N3pR/8/4P3/4Q3

#2

7 + 6

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qh1#
  • Tries
    • 1.Be6+?
      • 1...Kd4
        • 2.Rxg4#
      • 1...Ke4
        • 2.Rxg4#
      • 1...Kc6
        • 2.Qh1#
      • 1...Sxe6!
    • 1.Rxg4?
      • threat
        • 2.Qh1#
      • 1...Kc6
        • 2.Qh1#
      • 1...Bxe1!
  • Keys
    • 1.Bxg4!
      • threat
        • 2.Bf3#
      • 1...Kxc4
        • 2.Be6#
      • 1...Kd4
        • 2.Bf3#
        • 2.Be6#
      • 1...Ke4
        • 2.Be6#
      • 1...Kc6
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(d);N_GUARD,S_FLIGHT::QAB(A)
  • Tries
    • Try
      • B(G);CHECK
      • Vars
        • K(d);N_GUARD,P-FLIGHT,P_SPINP(a),S_CUTS(f)::R(E),XP(a)
        • K(d);N_GUARD,P_SPINP(a),S_CUTS(f),S_FLIGHT::R(E),XP(a)
        • K(d);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • S(f);XB(G)
    • Try
      • R(E);XP(a)
      • Threat
        • QAB(A)
      • Vars
        • K(d);S_FLIGHT::QAB(A)
      • Refutation
        • B(b);XQ(A)
  • Actual
    • B(G);XP(a)
    • Threat
      • B(G)
    • Vars
      • K(d);N_GUARD,S_FLIGHT,XS(D)::R(E)+B(G),DCHECK
      • K(d);N_GUARD,S_CUTS(f),S_FLIGHT::R(E)+B(G)
      • K(d);N_GUARD,S_FLIGHT::QAB(A)
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