MESON Chess Problem Database

Problem Display
PID: 157600 (K7/8/B2pppP1/2pP1P1N/QpN1k1p1/3pB1p1/3P2P1/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Deutsche Schachblatter, 1983

K7/8/B2pppP1/2pP1P1N/QpN1k1p1/3pB1p1/3P2P1/8

#2

11 + 9

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Sxf6#
    • 1...exd5
      • 2.Sxg3#
    • 1...exf5
      • 2.Sxf6#
  • Tries
    • 1.Qd7?
      • threat
        • 2.Qxe6#
      • 1...Kxd5
        • 2.Sxf6#
        • 2.Qb7#
      • 1...exd5
        • 2.Sxg3#
        • 2.Sxf6#
        • 2.Qe6#
      • 1...exf5
        • 2.Sxf6#
        • 2.Qe6#
      • 1...e5
        • 2.Sxf6#
      • 1...Kxf5!
    • 1.Qe8?
      • threat
        • 2.Qxe6#
      • 1...Kxd5
        • 2.Sxf6#
      • 1...Kxf5
        • 2.Sxg3#
      • 1...e5!
  • Keys
    • 1.Qb3!
      • 1...Kxd5
        • 2.Bb7#
      • 1...Kxf5
        • 2.Qxd3#
      • 1...exd5
        • 2.Sxg3#
      • 1...exf5
        • 2.Sxf6#
      • 1...e5
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT,XP(F)::S(H),XP(i)
    • P(h);SBLOCK,XP(F)::S(H),XP(b)
    • P(h);SBLOCK,XP(G)::S(H),XP(i)
  • Tries
    • Try
      • Q(D);
      • Threat
        • QAR2(D),XP(h)
      • Vars
        • P(h);::S(H),XP(i)
      • Refutation
        • K(d);P_SPINP(h),S_FLIGHT,XP(G)
    • Try
      • Q(D);P_PINP(h)
      • Threat
        • QAR2(D),XP(h)
      • Vars
        • K(d);N_SPINP(h),S_FLIGHT,XP(F)::S(H),XP(i)
        • K(d);N_SPINP(h),S_FLIGHT,XP(G)::S(H),XP(b)
      • Refutation
        • P(h);
  • Actual
    • Q(D);
    • Vars
      • K(d);OGATEB,S_FLIGHT,XP(F)::B(I)
      • K(d);S_FLIGHT,XP(G)::QAB(D),XP(a)
      • P(h);SBLOCK,XP(F)::S(H),XP(b)
      • P(h);SBLOCK,XP(G)::S(H),XP(i)
      • P(h);SBLOCK::S(E),XP(g)
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