MESON Chess Problem Database

Problem Display
PID: 163743 (8/1N3N1B/1p3BK1/1P1k4/3r4/Q3P3/8/8 w - - 0 1)

Knezevic, Velja

Novi Temi, 1974

8/1N3N1B/1p3BK1/1P1k4/3r4/Q3P3/8/8

#2

8 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qb3+?
      • 1...Ke4
        • 2.Sg5#
      • 1...Rc4!
    • 1.Qd3?
      • 1...Ke6
        • 2.Qf5#
      • 1...Rxd3!
  • Keys
    • 1.Bg8!
      • threat
        • 2.Sg5#
        • 2.Sfd6#
      • 1...Rg4+
        • 2.Sg5#
      • 1...Kc4
        • 2.Sfd6#
      • 1...Ke4
        • 2.Sg5#
      • 1...Ke6
        • 2.Se5#
      • 1...Re4
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::S(G)
      • Refutation
        • R(a);P_SPINR(a)
    • Try
      • Q(A);P_PINR(a)
      • Vars
        • K(b);N_SPINR(a),S_FLIGHT::QAB1(A)
      • Refutation
        • R(a);N_SPINR(a),XQ(A)
  • Actual
    • B(H);
    • Threat
      • DUALS(2)
    • Vars
      • R(a);CHECK::B(H)+S(G)
      • K(b);S_FLIGHT::B(H)+S(G),DCHECK
      • K(b);S_FLIGHT::S(G)
      • K(b);S_FLIGHT::B(H)+S(G)
      • R(a);SBLOCK::B(H)+S(G)
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