MESON Chess Problem Database

Problem Display
PID: 225812 (6B1/3K1n2/5N2/R1BPp3/2k1N2R/P7/2P2P2/5n2 w - - 0 1)

Ulanov, Lev

Praca, 2000

6B1/3K1n2/5N2/R1BPp3/2k1N2R/P7/2P2P2/5n2

#2

11 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sg4?
      • 1...Sd2
        • 2.Se3#
      • 1...Sh2
        • 2.Se3#
      • 1...Se3
        • 2.Sxe3#
      • 1...Sg3
        • 2.Se3#
      • 1...Sg5
        • 2.Sxe5#
      • 1...Sd6
        • 2.Sxe5#
      • 1...Sh6
        • 2.Sxe5#
      • 1...Sd8
        • 2.Sxe5#
      • 1...Sh8
        • 2.Sxe5#
      • 1...Kxd5!
    • 1.Bb4?
      • threat
        • 2.Sd2#
        • 2.Sd6#
      • 1...Sd2
        • 2.Sxd2#
        • 2.Sd6#
      • 1...Sd6
        • 2.Sd2#
        • 2.Sxd6#
      • 1...Kd4!
  • Keys
    • 1.Bd4!
      • 1...Kxd4
        • 2.Ra4#
      • 1...exd4
        • 2.Rc5#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Sh2
        • 2.Sd2#
      • 1...Se3
        • 2.Sd2#
      • 1...Sg3
        • 2.Sd2#
      • 1...Sg5
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sh6
        • 2.Sd6#
      • 1...Sd8
        • 2.Sd6#
      • 1...Sh8
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(I);
      • Vars
        • S(a);N_GUARD::S(I)
        • S(a);N_GUARD::S(I),XS(a)
        • S(d);N_GUARD::S(I),XP(c)
      • Refutation
        • K(b);P_SPINS(d),S_FLIGHT,XP(H)
    • Try
      • B(G);
      • Threat
        • DUALS(2)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • B(G);
    • Vars
      • K(b);P-FLIGHT,XB(G)::R(F)
      • P(c);SBLOCK,XB(G)::R1(F)
      • S(a);N_GUARD::S(D),XS(a)
      • S(a);N_GUARD::S(D)
      • S(d);N_GUARD::S(D)
      • S(d);N_GUARD::S(D),XS(d)
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