MESON Chess Problem Database

Problem Display
PID: 198412 (8/2K1pp2/4pN2/4k3/3p3N/8/3BbP2/Q7 w - - 0 1)

Dehler, Otto Georg Edgar

Bekes, 1920

8/2K1pp2/4pN2/4k3/3p3N/8/3BbP2/Q7

#2

6 + 6

3713 Snap 2019
6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qa5+?
      • 1...Kxf6
        • 2.Qg5#
      • 1...Bb5!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Sd7#
      • 1...Kxf6
        • 2.Qh8#
      • 1...exf6
        • 2.f4#
      • 1...d3
        • 2.Qa1#
      • 1...Bb5
        • 2.Sg4#

Anticipated by 119931(1916)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK,N_PINP(b)
      • Vars
        • K(c);OGATE,S_FLIGHT,XS(E)::QAB1(A)
      • Refutation
        • B(a);P_SPINB(a)
  • Actual
    • Q(A);N_PINP(b)
    • Threat
      • S(E)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(E)::QAB(A)
      • P(e);SBLOCK,XS(E)::P(C)
      • P(b);OGATEB::QAB(A)
      • B(a);N_GUARD::S(E)
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Developed and maintained by Brian Stephenson.
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