MESON Chess Problem Database

Problem Display
PID: 27505 (8/K7/4Q3/8/2N5/3N1n2/2p5/3k4 w - - 0 1)

Lebeck, Donald

Mate in Two!! (Lebeck), 1992

8/K7/4Q3/8/2N5/3N1n2/2p5/3k4

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.Qxe1#
    • 1...Sg1
      • 2.Qe1#
    • 1...Sd2
      • 2.Scb2#
      • 2.Qe1#
    • 1...Sh2
      • 2.Qe1#
    • 1...Sd4
      • 2.Qe1#
    • 1...Sh4
      • 2.Qe1#
    • 1...Sg5
      • 2.Qe1#
  • Keys
    • 1.Qe4!
      • threat
        • 2.Qxf3#
      • 1...c1Q
        • 2.Sf2#
      • 1...c1S
        • 2.Sdb2#
        • 2.Sf2#
      • 1...c1B
        • 2.Sf2#
      • 1...c1R
        • 2.Sdb2#
        • 2.Sf2#
      • 1...Se1
        • 2.Qxe1#
      • 1...Sg1
        • 2.Qe1#
      • 1...Sd2
        • 2.Scb2#
        • 2.Qe1#
      • 1...Sh2
        • 2.Qe1#
      • 1...Sd4
        • 2.Qe1#
      • 1...Sh4
        • 2.Qe1#
      • 1...Se5
        • 2.Qe1#
      • 1...Sg5
        • 2.Qe1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::QAR1(C),XS(c)
    • S(c);N_GUARD::QAR1(C)
  • Actual
    • Q(C);
    • Threat
      • QAB(C),XS(c)
    • Vars
      • P(b);SBLOCK::S(A)
      • S(c);N_GUARD::QAR1(C),XS(c)
      • S(c);N_GUARD::QAR1(C)
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