MESON Chess Problem Database

Problem Display
PID: 19275 (8/2K5/Q7/2p1p3/3k2B1/8/3B4/8 w - - 0 1)

Lazdinits, Eriks

Zvaigzne, 1958

8/2K5/Q7/2p1p3/3k2B1/8/3B4/8

#2

4 + 3

3296 Shakhmatny zadachi miniaturi 1987
3813 300 Sachmatu Uzdaviniu 1991

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qc4#
    • 1...Kd5
      • 2.Qd3#
  • Tries
    • 1.Bf3?
      • 1...c4
        • 2.Qd6#
      • 1...e4!
    • 1.Bf5?
      • threat
        • 2.Qd3#
      • 1...Kd5
        • 2.Qd3#
      • 1...c4
        • 2.Qd6#
      • 1...e4!
    • 1.Be6?
      • threat
        • 2.Qc4#
      • 1...c4
        • 2.Qxc4#
      • 1...e4
        • 2.Qd6#
      • 1...Ke4!
  • Keys
    • 1.Be2!
      • threat
        • 2.Qd3#
        • 2.Qc4#
      • 1...Ke4
        • 2.Qd3#
      • 1...Kd5
        • 2.Qc4#
      • 1...c4
        • 2.Qxc4#
      • 1...e4
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR2(C)
  • Tries
    • Try
      • B(B);
      • Vars
        • P(b);SBLOCK::QAR2(C)
      • Refutation
        • P(c);
    • Try
      • B(B);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
        • P(b);SBLOCK::QAR2(C)
      • Refutation
        • P(c);
    • Try
      • B(B);
      • Threat
        • QAR1(C)
      • Vars
        • P(b);::QAR1(C),XP(b)
        • P(c);SBLOCK::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);P-FLIGHT::QAB1(C)
      • P(b);::QAR1(C),XP(b)
      • P(c);SBLOCK::QAR2(C)
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