MESON Chess Problem Database

Problem Display
PID: 78482 (8/3n1B2/8/1R6/8/4k3/2Q3K1/2b5 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Problem Observer, 2008

8/3n1B2/8/1R6/8/4k3/2Q3K1/2b5

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Re5+?
      • 1...Kd4
        • 2.Re4#
      • 1...Kf4
        • 2.Qe4#
        • 2.Qf5#
      • 1...Sxe5!
    • 1.Qd3+?
      • 1...Kf4
        • 2.Qf3#
        • 2.Qd4#
      • 1...Kxd3!
    • 1.Qf2+?
      • 1...Ke4
        • 2.Bg6#
      • 1...Kd3!
    • 1.Qc3+?
      • 1...Ke2
        • 2.Bh5#
      • 1...Kf4
        • 2.Qd4#
        • 2.Qf3#
      • 1...Ke4!
  • Keys
    • 1.Bg6!
      • threat
        • 2.Qf2#
      • 1...Kd4
        • 2.Qd3#
      • 1...Kf4
        • 2.Qe4#
      • 1...Bd2
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(b);S_FLIGHT::R1(C)
      • Refutation
        • S(c);XR(C)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);P-FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::B(D)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::B(D)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • B(D);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);S_FLIGHT::QAR1(A)
      • B(a);SBLOCK::QAR1(A)
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