MESON Chess Problem Database

Problem Display
PID: 205500 (4n3/4p1n1/1N2p2N/4k1Pp/3p3P/Q2P4/5P2/6K1 w - - 0 1)

Beck, Antonin

Casopis ceskoslovenskych sachistu, 1925

4n3/4p1n1/1N2p2N/4k1Pp/3p3P/Q2P4/5P2/6K1

#2

8 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sd7+?
      • 1...Kd5
        • 2.Qc5#
      • 1...Kf4!
  • Keys
    • 1.Qc1!
      • 1...Kd6
        • 2.Sf7#
      • 1...Sf5
        • 2.Sf7#
      • 1...Sd6
        • 2.f4#
      • 1...Sf6
        • 2.Qc7#
      • 1...Sc7
        • 2.Qxc7#

This is a version of 120159

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(b);S_FLIGHT::S(H)
      • S(f);SBLOCK::S(H)
      • S(g);SBLOCK::P(B)
      • S(g);N_GUARD::QAB(C)
      • S(g);N_GUARD::QAB(C),XS(g)
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