MESON Chess Problem Database

Problem Display
PID: 21064 (8/8/8/1K6/p2B4/8/kP1p4/3Q4 w - - 0 1)

Betts, Frederick Charles

1st HM., Good Companions (January Meredith Ty.), 1916

8/8/8/1K6/p2B4/8/kP1p4/3Q4

#2

4 + 3

3295 Einfuhrung in die Welt des Schachproblem 1984
2786 More Fun with Chess Miniatures 2000
5454 Near Snap 2007
15351 SCPF/BCPS Black Books 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Qa1+?
      • 1...Kb3
        • 2.Qxa4#
      • 1...Kxa1!
    • 1.b3?
      • 1...axb3
        • 2.Qa1#
      • 1...a3
        • 2.Qc2#
      • 1...Ka3!
  • Keys
    • 1.b4!
      • 1...Ka3
        • 2.Qxa4#
      • 1...axb4 ep
        • 2.Qa1#
      • 1...a3
        • 2.Qc2#

This anticipates 71703(1931)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(A),XP(c)
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
    • Try
      • P(B);
      • Vars
        • P(c);SBLOCK,XP(B)::QAR1(A)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(B);
    • Vars
      • K(a);P-FLIGHT::QAR1(A),XP(c)
      • P(c);EP,XP(B)::QAR1(A)
      • P(c);SBLOCK::QAR2(A)
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