MESON Chess Problem Database

Problem Display
PID: 250697 (5N2/2K1P3/2PpP3/4kNb1/3p2p1/3Qp3/6P1/B7 w - - 0 1)

Caliman, Gligor

Comm., Thessalonika Olympic Ty., 1984

5N2/2K1P3/2PpP3/4kNb1/3p2p1/3Qp3/6P1/B7

#2

9 + 6

14867 BCPS Library 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Sg6#
    • 1...Kd5
      • 2.Qxd4#
    • 1...Kf6
      • 2.Bxd4#
  • Tries
    • 1.Bxd4+?
      • 1...Kf4
        • 2.Sg6#
      • 1...Kd5!
    • 1.Qe4+?
      • 1...Kf6
        • 2.Bxd4#
        • 2.e8S#
      • 1...Kxe4!
  • Keys
    • 1.Sxd4!
      • threat
        • 2.Se2#
        • 2.Qf5#
      • 1...Kf4
        • 2.Se2#
      • 1...Kd5
        • 2.Sb3#
      • 1...Kf6
        • 2.Sf5#
      • 1...e2
        • 2.Sxe2#
        • 2.Qf5#
      • 1...d5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(d);N_GUARD,N_SPINP(b),S_FLIGHT::S(I)
    • K(d);N_GUARD,P-FLIGHT::QAR1(C),XP(b)
    • K(d);N_GUARD,S_FLIGHT::B(A),XP(b)
  • Tries
    • Try
      • B(A);CHECK,XP(b)
      • Vars
        • K(d);N_GUARD,S_FLIGHT::S(I)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(d);N_SPINP(b),P-FLIGHT,XQ(C)
  • Actual
    • S(D);XP(b)
    • Threat
      • DUALS(2)
    • Vars
      • K(d);S_FLIGHT::S(D)
      • K(d);N_GUARD,P-FLIGHT::QAR(C)+S(D)
      • K(d);N_GUARD,S_FLIGHT::B(A)+S(D)
      • P(f);SBLOCK::QAR1(C)
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