MESON Chess Problem Database

Problem Display
PID: 69241 (1B6/8/5N2/3p4/Bp1k4/1P3p1Q/5N2/3K4 w - - 0 1)

Okkinga, AS

Tijdschrift vd NSB, 1897

1B6/8/5N2/3p4/Bp1k4/1P3p1Q/5N2/3K4

#2

7 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Be5+?
      • 1...Ke3
        • 2.S6g4#
      • 1...Kc5
        • 2.Sd7#
      • 1...Kxe5!
    • 1.Qe6?
      • 1...Kc5
        • 2.Ba7#
      • 1...Kc3!
    • 1.Qh4+?
      • 1...Ke3
        • 2.Sxd5#
      • 1...Kc5
        • 2.Sd7#
      • 1...Kc3!
    • 1.Qh6?
      • 1...Kc3
        • 2.Qd2#
      • 1...Kc5!
  • Keys
    • 1.Qh8!
      • 1...Kc3
        • 2.S6e4#
        • 2.Sxd5#
      • 1...Ke3
        • 2.S6g4#
      • 1...Kc5
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(G);CHECK
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT::S(F)
        • K(c);S_FLIGHT::S(F)
      • Refutation
        • K(c);S_FLIGHT,XB(G)
    • Try
      • Q(D);
      • Vars
        • K(c);S_FLIGHT::B(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(c);S_FLIGHT::S(F),XP(d)
        • K(c);S_FLIGHT::S(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(c);S_FLIGHT::QAB1(D)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(D);
    • Vars
      • K(c);S_FLIGHT::S(F)
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Developed and maintained by Brian Stephenson.
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