MESON Chess Problem Database

Problem Display
PID: 273899 (8/8/4K3/5N2/2n1kp1p/1Q6/8/8 w - - 0 1)

Kovacevic, Marjan

Mat, 1972

8/8/4K3/5N2/2n1kp1p/1Q6/8/8

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Sb2
      • 2.Qd5#
    • 1...Sd2
      • 2.Qd5#
    • 1...Sa3
      • 2.Qd5#
    • 1...Sa5
      • 2.Qd5#
    • 1...Se5
      • 2.Qd5#
    • 1...Sd6
      • 2.Qd5#
    • 1...f3
      • 2.Qxc4#
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qd5#
      • 1...Sd2
        • 2.Qe2#
      • 1...f3
        • 2.Qd4#
      • 1...Se3
        • 2.Sd6#
      • 1...Sb6
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • S(a);OGATE::QAB1(A)
    • P(c);SBLOCK::QAR2(A),XS(a)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • S(a);N_GUARD::QAR2(A)
      • P(c);SBLOCK::QAR1(A)
      • S(a);N_GUARD,SBLOCK::S(B)
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