MESON Chess Problem Database

Problem Display
PID: 17938 (4k2r/2B1b2n/8/4QBN1/4n3/8/2K5/8 w k - 0 1)

Kardos, Tivadar

Die Schwalbe, 1952

4k2r/2B1b2n/8/4QBN1/4n3/8/2K5/8

#2

5 + 5

6480 Tividar Kardos: 200 ausgewahlte Schachprobleme 1983

SOLUTION

  • SOUND
  • Sets
    • 1...Kf8
      • 2.Qxh8#
    • 1...Rf8
      • 2.Qb5#
    • 1...0-0
      • 2.Bxh7#
  • Tries
    • 1.Bg6+?
      • 1...Kf8
        • 2.Qxh8#
      • 1...Kd7!
    • 1.Bd7+?
      • 1...Kf8
        • 2.Qxh8#
      • 1...Kxd7!
    • 1.Bd6?
      • threat
        • 2.Qxe7#
      • 1...Kd8
        • 2.Qxe7#
      • 1...Kf8
        • 2.Qxh8#
      • 1...0-0
        • 2.Bxh7#
      • 1...Sxd6!
  • Keys
    • 1.Bd8!
      • threat
        • 2.Qxe7#
      • 1...Kxd8
        • 2.Qb8#
      • 1...Kf8
        • 2.Qxh8#
      • 1...0-0
        • 2.Bxh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(d);N_SPINB(b),P-FLIGHT::QAR2(B),XR(e)
    • R(e);SBLOCK::QAB(B)
    • K(d);0-0,N_SPINB(b),OGATEB::B(C),XS(c)
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • K(d);N_SPINB(b),P-FLIGHT::QAR2(B),XR(e)
      • Refutation
        • K(d);N_SPINB(b),S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(d);N_SPINB(b),P-FLIGHT::QAR2(B),XR(e)
      • Refutation
        • K(d);N_SPINB(b),S_FLIGHT,XB(C)
    • Try
      • B(E);
      • Threat
        • QAR1(B),XB(b)
      • Vars
        • K(d);N_SPINB(b),P-FLIGHT::QAB1(B),XB(b)
        • K(d);P-FLIGHT::QAR2(B),XR(e)
        • K(d);0-0,N_SPINB(b),OGATEB::B(C),XS(c)
      • Refutation
        • S(a);XB(E)
  • Actual
    • B(E);
    • Threat
      • QAR1(B),XB(b)
    • Vars
      • K(d);N_SPINB(b),OGATEB,P-FLIGHT,XB(E)::QAR2(B)
      • K(d);N_SPINB(b),P-FLIGHT::QAR2(B),XR(e)
      • K(d);0-0,N_SPINB(b),OGATEB::B(C),XS(c)
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