MESON Chess Problem Database

Problem Display
PID: 81024 (8/8/2Q2p2/4k1B1/8/3p1K2/8/8 w - - 0 1)

Valuska, Jan

1st Prize, Smer, 1967

8/8/2Q2p2/4k1B1/8/3p1K2/8/8

#2

3 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Bxf6#
    • 1...Kf5
      • 2.Qxf6#
    • 1...f5
      • 2.Bf6#
  • Tries
    • 1.Bc1?
      • 1...Kd4
        • 2.Bb2#
      • 1...Kf5
        • 2.Qe4#
      • 1...f5
        • 2.Bb2#
      • 1...d2!
    • 1.Bf4+?
      • 1...Kf5
        • 2.Qe4#
      • 1...Kd4!
    • 1.Bh4?
      • 1...Kd4
        • 2.Bxf6#
      • 1...Kf5
        • 2.Qe4#
        • 2.Qxf6#
      • 1...f5
        • 2.Bf6#
      • 1...d2!
    • 1.Qd6+?
      • 1...Kf5
        • 2.Qxf6#
      • 1...Kxd6!
  • Keys
    • 1.Bd2!
      • 1...Kd4
        • 2.Bc3#
      • 1...Kf5
        • 2.Qe4#
      • 1...f5
        • 2.Bc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::B(B),XP(c)
    • K(b);P-FLIGHT::QAR1(C),XP(c)
    • P(c);SBLOCK::B(B)
  • Tries
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::B(B)
        • K(b);P-FLIGHT::QAB1(C)
        • P(c);SBLOCK::B(B)
      • Refutation
        • P(a);
    • Try
      • B(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::B(B),XP(c)
        • P(c);SBLOCK::B(B)
      • Refutation
        • P(a);
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(C),XP(c)
      • Refutation
        • K(b);S_FLIGHT,XQ(C)
  • Actual
    • B(B);
    • Vars
      • K(b);S_FLIGHT::B(B)
      • K(b);P-FLIGHT::QAB1(C)
      • P(c);SBLOCK::B(B)
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