MESON Chess Problem Database

Problem Display
PID: 67529 (8/r1B2QKN/1pp3p1/3Rpp2/1np1kNP1/6bP/b1PP1pr1/3Bn3 w - - 0 1)

Marker, Yuri

Pankratiev, Aleksandr Nikolaevich

Probleemblad, 1998

8/r1B2QKN/1pp3p1/3Rpp2/1np1kNP1/6bP/b1PP1pr1/3Bn3

#2

11 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf4
      • 2.Rd4#
    • 1...Bxf4
      • 2.Sf6#
    • 1...exf4
      • 2.Sg5#
      • 2.Sf6#
      • 2.Qe6#
    • 1...fxg4
      • 2.Sg5#
    • 1...g5
      • 2.Qxf5#
  • Tries
    • 1.Se2?
      • threat
        • 2.Sg5#
      • 1...Kf3
        • 2.Sg5#
      • 1...Bf4
        • 2.Sc3#
      • 1...Sf3
        • 2.Sf6#
      • 1...g5
        • 2.Sxg5#
      • 1...Bh4!
    • 1.Rd4+?
      • 1...exd4
        • 2.Sg5#
        • 2.Sf6#
        • 2.Qe6#
        • 2.Qe8#
        • 2.Qe7#
      • 1...Kxd4!
    • 1.Rxe5+?
      • 1...Kd4
        • 2.Se2#
        • 2.Se6#
        • 2.c3#
      • 1...Kxf4!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sf6#
      • 1...Kxd5
        • 2.Sf6#
      • 1...Sxd5
        • 2.Shg5#
      • 1...fxg4
        • 2.Seg5#
      • 1...Bh4
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • K(h);P-FLIGHT,P_SPINP(i),XS(E)::R(G)
    • B(e);SBLOCK,XS(E)::S(K)
    • P(j);XP(F)::S(K)
    • P(m);N_GUARD::QAB1(I),XP(j)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(K)
      • Vars
        • K(h);P_SPINP(j),S_FLIGHT::S(K)
        • B(e);SBLOCK::S(E)
        • S(a);SBLOCK::S(K)
        • P(m);::S(K),XP(m)
      • Refutation
        • B(e);
    • Try
      • R(G);CHECK
      • Refutation
        • K(h);P-FLIGHT,XR(G)
    • Try
      • R(G);CHECK,XP(i)
      • Refutation
        • K(h);P-FLIGHT,P_SPINP(j),XS(E)
  • Actual
    • S(E);
    • Threat
      • S(K)
    • Vars
      • K(h);S_FLIGHT,XR(G)::S(K)
      • S(f);SBLOCK,XR(G)::S(K)
      • P(j);XP(F)::S(E)
      • B(e);N_GUARD::R1(G),XP(i)
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