MESON Chess Problem Database

Problem Display
PID: 248855 (8/B3N1p1/1R4P1/2N1kB1n/2P5/QP4p1/6P1/2K5 w - - 0 1)

Fyodorov, Anton Anatolevich

1st HM., Zadachi i Etyudi, 2003

8/B3N1p1/1R4P1/2N1kB1n/2P5/QP4p1/6P1/2K5

#2

11 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Sf4
      • 2.Qb2#
      • 2.Qa1#
  • Tries
    • 1.Sa4?
      • threat
        • 2.Qd6#
      • 1...Kd4
        • 2.Rb5#
        • 2.Re6#
        • 2.Qc5#
      • 1...Kf4!
    • 1.Re6+?
      • 1...Kd4
        • 2.Sa4#
        • 2.Qb2#
        • 2.Qa1#
      • 1...Kf4!
  • Keys
    • 1.Rb5!
      • 1...Kd4
        • 2.Sa4#
      • 1...Kf4
        • 2.Se6#
      • 1...Kd6
        • 2.Sa6#
      • 1...Kf6
        • 2.Se4#
      • 1...Sf4
        • 2.Sd7#
      • 1...Sf6
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(H);CHECK
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(H);
    • Vars
      • K(b);S_FLIGHT::B(J)+S(F)
      • K(b);S_FLIGHT::S(F)
      • K(b);S_FLIGHT::QAB(C)+S(F)
      • S(c);SBLOCK::R(H)+S(F),DCHECK
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