MESON Chess Problem Database

Problem Display
PID: 129849 (8/2Q5/4p2K/3BpkP1/4b3/5pP1/7P/1q6 w - - 0 1)

Kondelik, Karel

Dama a strelec, 1912

8/2Q5/4p2K/3BpkP1/4b3/5pP1/7P/1q6

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...exd5
      • 2.Qd7#
      • 2.Qc8#
  • Tries
    • 1.Kh5?
      • threat
        • 2.Qf7#
        • 2.Qh7#
      • 1...Bxd5
        • 2.Qh7#
      • 1...exd5
        • 2.Qd7#
        • 2.Qf7#
        • 2.Qc8#
      • 1...Qb7!
    • 1.h3?
      • threat
        • 2.Qf7#
        • 2.Qh7#
      • 1...Bxd5
        • 2.Qh7#
      • 1...exd5
        • 2.Qd7#
        • 2.Qf7#
        • 2.Qc8#
      • 1...Qb7!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Bxe6#
      • 1...Kg4
        • 2.Bxe6#
      • 1...Bxd5
        • 2.g4#
      • 1...exd5
        • 2.Qc8#
      • 1...Qb6
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • B(c);XB(C)::QAB(F)
      • Refutation
        • Q(a);
    • Try
      • P(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);XB(C)::QAB(F)
      • Refutation
        • Q(a);
  • Actual
    • Q(F);
    • Threat
      • B(C),XP(f)
    • Vars
      • K(e);P_SPINB(c),S_FLIGHT::B(C),XP(f)
      • B(c);XB(C)::P(B)
      • P(f);OGATEB,XB(C)::QAB(F)
      • Q(a);N_GUARD::QAB1(F),XB(c)
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