MESON Chess Problem Database

Problem Display
PID: 214271 (1BK3R1/1p1B4/1PP2pp1/3kp1p1/3PR1P1/N7/8/1Q6 w - - 0 1)

Bogdanov, Evgeny Mikhailovich

Suomen Shakki, 2000

1BK3R1/1p1B4/1PP2pp1/3kp1p1/3PR1P1/N7/8/1Q6

#2

11 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Bf5?
      • threat
        • 2.Qb5#
      • 1...Kxc6
        • 2.Qb5#
      • 1...bxc6
        • 2.Rd8#
        • 2.Qa2#
        • 2.Qb3#
      • 1...gxf5!
    • 1.Be6+?
      • 1...Kxc6
        • 2.Qb5#
      • 1...Kxe6!
    • 1.Qc2?
      • 1...exd4
        • 2.Be6#
      • 1...bxc6
        • 2.Qxc6#
      • 1...f5!
    • 1.Qd3?
      • 1...exd4
        • 2.Qxd4#
      • 1...f5
        • 2.Rxe5#
      • 1...bxc6!
  • Keys
    • 1.Re8!
      • 1...exd4
        • 2.Qb5#
      • 1...bxc6
        • 2.Be6#
      • 1...f5
        • 2.R8xe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(H);
      • Threat
        • QAR2(A)
      • Vars
        • K(a);S_FLIGHT,XP(G)::QAB1(A)
      • Refutation
        • P(e);XB(H)
    • Try
      • B(H);CHECK
      • Vars
        • K(a);S_FLIGHT,XP(G)::QAB1(A)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT,XB(H)
    • Try
      • Q(A);
      • Vars
        • P(b);XP(C)::B(H)
        • P(f);OGATE,XP(G)::QAB1(A),XP(f)
      • Refutation
        • P(d);
    • Try
      • Q(A);
      • Vars
        • P(b);OGATE,P_SPINP(b),XP(C)::QAR1(A),XP(b)
        • P(d);N_GUARD::R1(D),XP(b)
      • Refutation
        • P(f);XP(G)
  • Actual
    • R(K);
    • Vars
      • P(b);XP(C)::QAR2(A)
      • P(f);SBLOCK,XP(G)::B(H)
      • P(d);N_GUARD::R1(K),XP(b)
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