MESON Chess Problem Database

Problem Display
PID: 134065 (2R1bn2/1P1Ppr2/NRP5/n1Nk1p2/2p5/1pK2P1Q/7B/8 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Veliky, Mikola Moiseyovich

1st Prize, Problem-Forum, 2006

2R1bn2/1P1Ppr2/NRP5/n1Nk1p2/2p5/1pK2P1Q/7B/8

#2

11 + 9

56 The Problemist 2009
23 Die Schwalbe 2011

SOLUTION

  • SOUND
  • Tries
    • 1.Rb5?
      • threat
        • 2.Sb4#
      • 1...Sxc6
        • 2.Sc7#
      • 1...f4
        • 2.Se4#
      • 1...e5!
    • 1.Qxf5+?
      • 1...e5
        • 2.Qxe5#
      • 1...Rxf5!
    • 1.Qh6?
      • threat
        • 2.Qd2#
      • 1...Sxc6
        • 2.Qxc6#
      • 1...Se6
        • 2.Qxe6#
      • 1...f4!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sc7#
      • 1...Ke6
        • 2.Sc7#
      • 1...fxe4
        • 2.Rb5#
      • 1...Se6
        • 2.Sb4#
      • 1...f4
        • 2.Rb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);
      • Threat
        • S(F)
      • Vars
        • S(c);SBLOCK,XP(H)::S(F)
        • P(e);::R(G)+S(E)
      • Refutation
        • P(f);
    • Try
      • Q(D);CHECK,XP(e)
      • Vars
        • P(f);P_SPINP(f)::QAR1(D),XP(f)
      • Refutation
        • R(g);XQ(D)
    • Try
      • Q(D);
      • Threat
        • QAR(D)
      • Vars
        • S(c);OGATE,XP(H)::QAB1(D),XS(c)
        • S(i);N_GUARD::QAB1(D),XS(i)
      • Refutation
        • P(e);
  • Actual
    • S(E);
    • Threat
      • S(F)
    • Vars
      • K(d);P_SPINP(e),S_FLIGHT::S(F)
      • P(e);XS(E)::R(G)
      • S(i);SBLOCK::S(F)
      • P(e);::R(G)
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