MESON Chess Problem Database

Problem Display
PID: 22522 (4R3/3p4/4P2r/4kp2/2PpN2Q/8/3K2b1/2B5 w - - 0 1)

Pospisil, Josef

Ceske listy sachove, 1899

4R3/3p4/4P2r/4kp2/2PpN2Q/8/3K2b1/2B5

#2

7 + 6

1750 Ceske listy sachove 1897

SOLUTION

  • SOUND
  • Sets
    • 1...Rh5
      • 2.exd7#
    • 1...d3
      • 2.Bb2#
  • Tries
    • 1.Kd1?
      • threat
        • 2.Qf4#
      • 1...Rxh4
        • 2.exd7#
      • 1...Bxe4
        • 2.Bf4#
      • 1...d3
        • 2.Bb2#
      • 1...f4
        • 2.Qxf4#
      • 1...Bf3+!
  • Keys
    • 1.Ke1!
      • threat
        • 2.Qf4#
      • 1...Rxh4
        • 2.exd7#
      • 1...Bxe4
        • 2.Bf4#
      • 1...d3
        • 2.Bb2#
      • 1...f4
        • 2.Qxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(e);N_GUARD::R(G)+P(F),XP(f)
    • P(b);OGATEB::B(A)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • QAB1(E)
      • Vars
        • R(e);N_GUARD,XQ(E)::R(G)+P(F),XP(f)
        • B(a);SBLOCK,XS(D)::B(A)
        • P(b);OGATEB::B(A)
        • P(d);::QAB1(E),XP(d)
      • Refutation
        • B(a);CHECK
  • Actual
    • K(B);S_FLIGHT
    • Threat
      • QAB1(E)
    • Vars
      • R(e);N_GUARD,XQ(E)::R(G)+P(F),XP(f)
      • B(a);SBLOCK,XS(D)::B(A)
      • P(b);OGATEB::B(A)
      • P(d);::QAB1(E),XP(d)
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Developed and maintained by Brian Stephenson.
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