MESON Chess Problem Database

Problem Display
PID: 184858 (4N3/1K3p2/1p2p3/4k1B1/2Q5/8/8/8 w - - 0 1)

Jewetsky, Feodor Orestovich

125 Shakhmaty Zadachi (Eventski), 1908

4N3/1K3p2/1p2p3/4k1B1/2Q5/8/8/8

#2

4 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Bf4#
      • 2.Bf6#
  • Tries
    • 1.Sf6?
      • threat
        • 2.Qf4#
      • 1...Kd6
        • 2.Qc7#
      • 1...Kf5!
    • 1.Sc7?
      • threat
        • 2.Qf4#
      • 1...Kd6
        • 2.Qd4#
      • 1...Kf5!
  • Keys
    • 1.Sd6!
      • 1...Kxd6
        • 2.Qd4#
      • 1...b5
        • 2.Qc5#
      • 1...f5
        • 2.Sf7#
      • 1...f6
        • 2.Bf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(D);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT,XS(D)::QAR2(A)
      • P(b);N_GUARD::QAR2(A)
      • P(d);SBLOCK::S(D)
      • P(d);SBLOCK::B(B)
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