MESON Chess Problem Database

Problem Display
PID: 206695 (8/8/2pp4/K1NbP2Q/3k4/1P1P1p2/1P3P2/3R4 w - - 0 1)

Sokolenko, Timofei

64 Shakhmatnoe obozrenie, 1925

8/8/2pp4/K1NbP2Q/3k4/1P1P1p2/1P3P2/3R4

#2

9 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.d4#
  • Tries
    • 1.Qg4+?
      • 1...Kxc5
        • 2.Qb4#
        • 2.b4#
        • 2.d4#
      • 1...Kxe5
        • 2.Sd7#
      • 1...Be4!
  • Keys
    • 1.e6!
      • 1...Kxc5
        • 2.d4#
      • 1...Bxb3
        • 2.Sxb3#
      • 1...Bxe6
        • 2.Sxe6#
      • 1...dxc5
        • 2.Qh8#
      • 1...Be4
        • 2.dxe4#
      • 1...Bc4
        • 2.dxc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(b);OGATE,S_FLIGHT,XS(G)::P(E)
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • K(b);S_FLIGHT,XP(H)::S(G)
      • Refutation
        • B(c);P_SPINB(c)
  • Actual
    • P(H);
    • Vars
      • K(b);OGATE,P_SPINB(c),S_FLIGHT,XS(G)::P(E)
      • B(c);XP(D)::S(G),XB(c)
      • B(c);XP(H)::S(G),XB(c)
      • P(e);SBLOCK,XS(G)::QAB(I)
      • B(c);OGATE::R(A)+P(E),XB(c)
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