MESON Chess Problem Database

Problem Display
PID: 212376 (4N3/8/R1B3Nk/4P2p/3r2PP/1r2R3/pPQ2pq1/K1B2b2 w - - 0 1)

Kalkavouras, Ioannis

The Problemist, 1986

4N3/8/R1B3Nk/4P2p/3r2PP/1r2R3/pPQ2pq1/K1B2b2

#2

12 + 8

SOLUTION

  • SOUND
  • Keys
    • 1.Sf8!
      • threat
        • 2.Qg6#
        • 2.Qh7#
      • 1...Qxc6
        • 2.Qh7#
        • 2.g5#
      • 1...Qxg4
        • 2.Qh7#
      • 1...Rxg4
        • 2.Qh7#
      • 1...Qe4
        • 2.g5#
      • 1...Rbd3
        • 2.Bd5#
      • 1...Rb7
        • 2.Qg6#
      • 1...Rdd3
        • 2.Rxd3#
      • 1...Re4
        • 2.Bb5#
      • 1...Rd6
        • 2.Rd3#
        • 2.Qh7#
      • 1...Rd7
        • 2.Rd3#
        • 2.Qg6#
      • 1...Bd3
        • 2.Re4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(K);
    • Threat
      • DUALS(2)
    • Vars
      • Q(d);XP(F)::QAR1(D)
      • R(f);XP(F)::QAR1(D)
      • Q(d);N_GUARD::P(F)
      • R(e);N_GUARD,S_CUTB(a)::R(I)+B(J)
      • R(e);::QAR1(D)
      • R(f);N_GUARD::B(B)+R(E),XR(f)
      • R(f);N_GUARD,S_CUTQ(d)::R(I)+B(J)
      • B(a);S_CUTR(e),S_CUTR(f)::B(B)+R(E)
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