MESON Chess Problem Database

Problem Display
PID: 246074 (6q1/8/1B3Q2/7k/8/3B2p1/8/6K1 w - - 0 1)

Zinoviev, Nikolai

Problemist Pribuzhya, 1990

6q1/8/1B3Q2/7k/8/3B2p1/8/6K1

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qf7
      • 2.Be2#
    • 1...Qh7
      • 2.Be2#
    • 1...Qb8
      • 2.Be2#
    • 1...Qd8
      • 2.Be2#
    • 1...Qf8
      • 2.Be2#
    • 1...Qh8
      • 2.Be2#
  • Keys
    • 1.Bd8!
      • threat
        • 2.Qh4#
      • 1...Kg4
        • 2.Qf5#
      • 1...Qxd8
        • 2.Be2#
      • 1...Qg5
        • 2.Qxg5#
      • 1...Qc4
        • 2.Qg5#
        • 2.Qg6#
      • 1...Qg4
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • Q(c);N_GUARD::B(B)
  • Actual
    • B(C);
    • Threat
      • QAR1(D)
    • Vars
      • K(b);S_FLIGHT::QAB1(D)
      • Q(c);N_GUARD,XB(C)::B(B)
      • Q(c);N_GUARD::QAR1(D),XQ(c)
      • Q(c);N_GUARD,SBLOCK::QAR(D)
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