MESON Chess Problem Database

Problem Display
PID: 173812 (1K4B1/2Q5/8/8/N7/k3B3/8/b7 w - - 0 1)

Borovik, Boris V

Schach-Echo, 1986

1K4B1/2Q5/8/8/N7/k3B3/8/b7

#2

5 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qc4?
      • threat
        • 2.Bc5#
        • 2.Qb3#
      • 1...Bc3
        • 2.Qb3#
      • 1...Bd4
        • 2.Qb3#
      • 1...Be5+!
  • Keys
    • 1.Sb2!
      • threat
        • 2.Qc3#
      • 1...Kxb2
        • 2.Qc1#
      • 1...Kb4
        • 2.Qc5#
      • 1...Bxb2
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAR1(C)
      • Refutation
        • B(a);CHECK
  • Actual
    • S(B);
    • Threat
      • QAR2(C)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(B)::QAB1(C)
      • K(b);S_FLIGHT::QAB1(C)
      • B(a);SBLOCK,XS(B)::QAR2(C)
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