MESON Chess Problem Database

Problem Display
PID: 70550 (5Q2/B7/1pp2K2/3kp2P/P5pR/1P6/B3N1P1/8 w - - 0 1)

Rayner, James

Source?, 0000

5Q2/B7/1pp2K2/3kp2P/P5pR/1P6/B3N1P1/8

#2

10 + 5

187 The Chess Bouquet 1897

SOLUTION

  • SOUND
  • Sets
    • 1...g3
      • 2.Sc3#
      • 2.b4#
    • 1...e4
      • 2.b4#
    • 1...b5
      • 2.Sc3#
  • Tries
    • 1.Rxg4?
      • threat
        • 2.Sc3#
        • 2.b4#
      • 1...e4
        • 2.Rg5#
        • 2.b4#
      • 1...c5!
  • Keys
    • 1.Ke7!
      • 1...Ke4
        • 2.Qf3#
      • 1...Kc5
        • 2.Ke6#
      • 1...g3
        • 2.b4#
      • 1...e4
        • 2.Qf5#
      • 1...b5
        • 2.Sc3#
      • 1...c5
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::B(A)+P(D)
    • P(d);::S(B)
  • Tries
    • Try
      • R(F);XP(a)
      • Threat
        • DUALS(2)
      • Refutation
        • P(e);
  • Actual
    • K(H);S_FLIGHT
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::QAB1(J)
      • K(b);P-FLIGHT,P_SPINP(d)::QAB(J)+K(H)
      • P(a);::B(A)+P(D)
      • P(c);OGATEB::QAR2(J)
      • P(d);::S(B)
      • P(e);OGATEB,SBLOCK::QAB(J)
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