MESON Chess Problem Database

Problem Display
PID: 262874 (4B3/8/8/8/5p2/2bQp3/8/4k1K1 w - - 0 1)

Kovalenko, V?

Zadachi i Etyudi, 2008

4B3/8/8/8/5p2/2bQp3/8/4k1K1

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Bd2
      • 2.Qf1#
  • Tries
    • 1.Bb5?
      • threat
        • 2.Qe2#
      • 1...e2
        • 2.Qxe2#
      • 1...f3!
    • 1.Bh5?
      • threat
        • 2.Qe2#
        • 2.Qd1#
        • 2.Qxc3#
      • 1...Ba1
        • 2.Qe2#
        • 2.Qd1#
      • 1...Bb2
        • 2.Qe2#
        • 2.Qd1#
      • 1...Bd2
        • 2.Qf1#
        • 2.Qe2#
      • 1...Bb4
        • 2.Qe2#
        • 2.Qd1#
      • 1...Bd4
        • 2.Qe2#
        • 2.Qd1#
      • 1...Ba5
        • 2.Qe2#
        • 2.Qd1#
      • 1...Be5
        • 2.Qe2#
        • 2.Qd1#
      • 1...Bf6
        • 2.Qe2#
        • 2.Qd1#
      • 1...Bg7
        • 2.Qe2#
        • 2.Qd1#
      • 1...Bh8
        • 2.Qe2#
        • 2.Qd1#
      • 1...e2
        • 2.Qxe2#
      • 1...f3!
    • 1.Qxe3+?
      • 1...Kd1
        • 2.Ba4#
      • 1...fxe3!
  • Keys
    • 1.Ba4!
      • threat
        • 2.Qd1#
      • 1...Bd2
        • 2.Qf1#
      • 1...e2
        • 2.Qxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK::QAR1(B)
  • Tries
    • Try
      • B(C);
      • Threat
        • QAR1(B)
      • Vars
        • P(c);::QAR1(B),XP(c)
      • Refutation
        • P(d);
    • Try
      • B(C);
      • Threat
        • DUALS(3)
      • Vars
        • P(c);::QAR1(B),XP(c)
      • Refutation
        • P(d);
    • Try
      • Q(B);CHECK,XP(c)
      • Vars
        • K(a);P-FLIGHT,S_CUTP(d)::B(C)
      • Refutation
        • P(d);XQ(B)
  • Actual
    • B(C);
    • Threat
      • QAR1(B)
    • Vars
      • B(b);SBLOCK::QAR1(B)
      • P(c);SBLOCK::QAB(B),XB(b)
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