MESON Chess Problem Database

Problem Display
PID: 292 (8/8/8/2B1QK2/4N3/2R3R1/3pkp2/1N2b3 w - - 0 1)

Watney, Charles Gold

The Observer, 1920

(First published on Sun Mar 21 1920)

8/8/8/2B1QK2/4N3/2R3R1/3pkp2/1N2b3

#2

7 + 4

3310 2345 Chess Problems 1997
15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...d1Q
      • 2.Sed2#
    • 1...d1B
      • 2.Sed2#
    • 1...d1R
      • 2.Sed2#
    • 1...f1Q+
      • 2.Sf2#
    • 1...f1B
      • 2.Sf2#
    • 1...f1R+
      • 2.Sf2#
  • Keys
    • 1.Qe8!
      • 1...f1Q+
        • 2.Sf2#
      • 1...f1R+
        • 2.Sf2#
      • 1...Kd1
        • 2.Qh5#
      • 1...Kf1
        • 2.Qb5#
      • 1...d1Q
        • 2.Sed2#
      • 1...d1S
        • 2.Qb5#
      • 1...d1B
        • 2.Sed2#
        • 2.Qb5#
      • 1...d1R
        • 2.Sed2#
      • 1...f1S
        • 2.Qh5#
      • 1...f1B
        • 2.Sf2#
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • P(b);SBLOCK::QAR(F)+S(D)
    • P(d);CHECK,SBLOCK::QAR(F)+S(D)
    • P(d);SBLOCK::QAR(F)+S(D)
  • Actual
    • Q(F);
    • Vars
      • P(d);CHECK,SBLOCK::QAR(F)+S(D)
      • K(c);S_FLIGHT::QAB(F)
      • P(b);SBLOCK::QAR(F)+S(D)
      • P(b);SBLOCK::QAB(F)
      • P(d);SBLOCK::QAB(F)
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