MESON Chess Problem Database

Problem Display
PID: 9541 (1K4Q1/1Ppkp3/3p2B1/8/1P6/b7/8/6r1 w - - 0 1)

Heathcote, Godfrey

Hampstead and Highgate Express, 1905

1K4Q1/1Ppkp3/3p2B1/8/1P6/b7/8/6r1

#2

5 + 6

1829 The Theory of Pawn Promotion 1912

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Qxd5#
    • 1...c5
      • 2.Qc8#
    • 1...c6
      • 2.Qc8#
    • 1...e5
      • 2.Qe8#
    • 1...e6
      • 2.Qe8#
  • Tries
    • 1.Ka8?
      • threat
        • 2.b8S#
      • 1...d5
        • 2.Qxd5#
      • 1...c5
        • 2.Qc8#
      • 1...e5
        • 2.Qe8#
      • 1...e6
        • 2.Qe8#
      • 1...c6
        • 2.Qc8#
      • 1...Kc6!
    • 1.b5?
      • threat
        • 2.Qc8#
      • 1...e5
        • 2.Qe8#
      • 1...e6
        • 2.Qe8#
      • 1...d5!
  • Keys
    • 1.Ka7!
      • threat
        • 2.b8S#
      • 1...Kc6
        • 2.Be8#
      • 1...d5
        • 2.Qxd5#
      • 1...c5
        • 2.Qc8#
      • 1...e5
        • 2.Qe8#
      • 1...e6
        • 2.Qe8#
      • 1...c6
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATEB::QAR2(E),XP(c)
    • P(d);::QAB1(E)
    • P(f);::QAB1(E)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Threat
        • P=S
      • Vars
        • P(c);OGATEB::QAR2(E),XP(c)
        • P(d);::QAB1(E)
        • P(f);::QAB1(E)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • P(A);
      • Threat
        • QAB1(E)
      • Vars
        • P(f);::QAB1(E)
      • Refutation
        • P(c);
  • Actual
    • K(D);S_FLIGHT
    • Threat
      • P=S
    • Vars
      • K(e);S_FLIGHT::B(B)
      • P(c);OGATEB::QAR2(E),XP(c)
      • P(d);::QAB1(E)
      • P(f);::QAB1(E)
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