MESON Chess Problem Database

Problem Display
PID: 86218 (8/2p5/1p3B2/8/1k1N2R1/p1p5/Bq1Q3K/1R1N4 w - - 0 1)

Loshinski, Lev Ilich

Vecherni Izvestiya, 1929

8/2p5/1p3B2/8/1k1N2R1/p1p5/Bq1Q3K/1R1N4

#2

8 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Be7#
    • 1...b5
      • 2.Sb3#
  • Keys
    • 1.Qe2!
      • threat
        • 2.Sb3#
      • 1...Ka4
        • 2.Sb3#
      • 1...Ka5
        • 2.Sc6#
      • 1...Kc5
        • 2.Be7#
      • 1...Qxb1
        • 2.Qb5#
      • 1...Qb3
        • 2.Sxb3#
        • 2.Qb5#
      • 1...c2
        • 2.Qb5#
      • 1...c5
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • K(d);N_SPINP(c),N_SPINQ(a),S_FLIGHT::B(H)
    • P(e);SBLOCK::R(G)+S(F)
  • Actual
    • Q(D);N_PINP(c)
    • Threat
      • R(G)+S(F)
    • Vars
      • K(d);N_SPINQ(a),P-FLIGHT::R(G)+S(F)
      • K(d);N_SPINQ(a),S_FLIGHT::S(F)
      • K(d);N_SPINQ(a),S_FLIGHT::B(H)
      • Q(a);N_PINQ(D),N_SPINQ(a),XR(A)::QAR1(D)
      • P(c);N_PINQ(D)::QAR1(D)
      • P(f);SBLOCK::R(G)+S(F),DCHECK
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