MESON Chess Problem Database

Problem Display
PID: 121416 (5Q1K/8/2p5/3PB1pN/8/4k2p/3ppNb1/3rr1b1 w - - 0 1)

Zalkind, Lazar Borissovich

Casopis ceskoslovenskych sachistu, 1909

5Q1K/8/2p5/3PB1pN/8/4k2p/3ppNb1/3rr1b1

#2

6 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bf3
      • 2.Qc5#
    • 1...g4
      • 2.Qf4#
  • Keys
    • 1.Sf6!
      • threat
        • 2.S6g4#
      • 1...Kxf2
        • 2.Sg4#
      • 1...Kf3
        • 2.S6g4#
      • 1...Bxf2
        • 2.Qa3#
      • 1...Bf3
        • 2.Qc5#
      • 1...g4
        • 2.S6xg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(f);SBLOCK::QAB(E)
    • P(i);N_GUARD::QAB1(E)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(g);S_FLIGHT,XS(A)::QAR(E)+S(D),DCHECK
      • K(g);P-FLIGHT::QAR(E)+S(D)
      • B(c);SBLOCK,XS(A)::QAR(E)
      • B(f);SBLOCK::QAB(E)
      • P(i);::S(D),XP(i)
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