MESON Chess Problem Database

Problem Display
PID: 161870 (n1B2b2/3N4/2k5/BN6/2P3p1/5n2/Q7/7K w - - 0 1)

Apro, Laszlo

Tipografia, 1962

n1B2b2/3N4/2k5/BN6/2P3p1/5n2/Q7/7K

#2

7 + 5

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.Sb8#
    • 1...Bd6
      • 2.Sa7#
  • Tries
    • 1.Sd4+?
      • 1...Kd6
        • 2.Qa3#
      • 1...Sxd4!
    • 1.Se5+?
      • 1...Kc5
        • 2.Qa3#
      • 1...Sxe5!
    • 1.Qf2?
      • threat
        • 2.Sb8#
      • 1...Bd6
        • 2.Sa7#
      • 1...Sd4!
  • Keys
    • 1.Bb4!
      • threat
        • 2.Qxa8#
      • 1...Sb6
        • 2.Sb8#
      • 1...Sc7
        • 2.Sa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(e);SBLOCK::S(F)
    • B(e);SBLOCK::S(E)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB(B)
      • Refutation
        • S(a);XS(E)
    • Try
      • S(F);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB(B)
      • Refutation
        • S(a);XS(F)
    • Try
      • Q(B);
      • Threat
        • S(F)
      • Vars
        • B(e);SBLOCK::S(E)
      • Refutation
        • S(a);
  • Actual
    • B(D);
    • Threat
      • QAB(B),XS(d)
    • Vars
      • S(d);SBLOCK::S(F)
      • S(d);SBLOCK::S(E)
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