MESON Chess Problem Database

Problem Display
PID: 80524 (6B1/3p2BQ/3K2R1/3p3P/N3k3/1P4PP/6R1/8 w - - 0 1)

Valuska, Jan

3rd HM., Hlas l'udu, 1981

6B1/3p2BQ/3K2R1/3p3P/N3k3/1P4PP/6R1/8

#2

11 + 3

6424 Czech Album (1979-1981) 1986

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Re6#
    • 1...Kf5
      • 2.Rg4#
  • Tries
    • 1.Bd4?
      • 1...Kd3
        • 2.Rg4#
      • 1...Kf3
        • 2.Bxd5#
      • 1...Kf5
        • 2.Rg4#
        • 2.Rg7#
      • 1...Kxd4!
    • 1.Bxd5+?
      • 1...Kd3
        • 2.Re6#
      • 1...Kf5
        • 2.Rf2#
        • 2.Rg4#
      • 1...Ke3!
    • 1.Re2+?
      • 1...Kd3
        • 2.Rge6#
      • 1...Kf5
        • 2.Re5#
        • 2.Rg4#
      • 1...Kf3!
    • 1.Rf2?
      • threat
        • 2.Re6#
      • 1...Kd3
        • 2.Re6#
      • 1...Ke3!
    • 1.Rf6+?
      • 1...Kd4
        • 2.Rf3#
        • 2.Re6#
      • 1...Ke3!
    • 1.Qh6?
      • 1...Kd3
        • 2.Sc5#
      • 1...Kf3
        • 2.Bxd5#
      • 1...Kf5
        • 2.Qf4#
      • 1...d4!
  • Keys
    • 1.Bh6!
      • 1...Kd3
        • 2.Rg4#
      • 1...Kf3
        • 2.Bxd5#
      • 1...Kd4
        • 2.Rg4#
      • 1...Kf5
        • 2.Re6#
      • 1...d4
        • 2.Rf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB(J)+R(H)
  • Tries
    • Try
      • B(I);
      • Vars
        • K(a);S_FLIGHT::QAB(J)+R(H)
        • K(a);S_FLIGHT::B(K),XP(b)
      • Refutation
        • K(a);P-FLIGHT,XB(I)
    • Try
      • B(K);CHECK,XP(b)
      • Vars
        • K(a);S_FLIGHT::QAB(J)+R(H)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB(J)+R(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Threat
        • QAB(J)+R(H),DCHECK
      • Vars
        • K(a);S_FLIGHT::QAB(J)+R(H)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(H);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(J);
      • Vars
        • K(a);S_FLIGHT::S(E)
        • K(a);S_FLIGHT::B(K),XP(b)
        • K(a);S_FLIGHT::QAR1(J)
      • Refutation
        • P(b);
  • Actual
    • B(I);
    • Vars
      • K(a);S_FLIGHT::QAB(J)+R(H)
      • K(a);S_FLIGHT::B(K),XP(b)
      • K(a);P-FLIGHT::R(H)
      • P(b);SBLOCK::QAB(J)+R(H)
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