MESON Chess Problem Database

Problem Display
PID: 138549 (2K5/2n5/1PBP4/1NBp4/1Pkp4/1rpp4/1pRP4/1NbR4 w - - 0 1)

Neyndorff, Luke

StrateGems, 1998

2K5/2n5/1PBP4/1NBp4/1Pkp4/1rpp4/1pRP4/1NbR4

#2

11 + 9

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd2
      • 2.Sxd2#
    • 1...dxc2
      • 2.d3#
  • Tries
    • 1.Sxc7?
      • threat
        • 2.Bb5#
        • 2.Bxd5#
      • 1...dxc2
        • 2.Bb5#
        • 2.d3#
      • 1...Ra3
        • 2.Bxd5#
      • 1...Rxb4!
  • Keys
    • 1.Sxd4!
      • 1...Rxb4
        • 2.Rxc3#
      • 1...Bxd2
        • 2.Sxd2#
      • 1...dxc2
        • 2.d3#
      • 1...Ra3
        • 2.Sxa3#
      • 1...Sb5
        • 2.Bxb5#
      • 1...Sa6
        • 2.Bb5#
      • 1...Se6
        • 2.Bb5#
      • 1...Sa8
        • 2.Bb5#
      • 1...Se8
        • 2.Bb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • B(a);XP(D)::S(A),XB(a)
    • P(e);N_SPINP(d),OGATE,XR(C)::P(D)
  • Tries
    • Try
      • S(F);XS(i)
      • Threat
        • DUALS(2)
      • Vars
        • R(c);::B(I),XP(h)
      • Refutation
        • R(c);XP(E)
  • Actual
    • S(F);XP(g)
    • Vars
      • R(c);N_GUARD,XP(E)::R1(C),XP(d)
      • B(a);XP(D)::S(A),XB(a)
      • P(e);N_SPINP(d),OGATE,XR(C)::P(D)
      • R(c);N_GUARD::S(A),XR(c)
      • S(i);N_GUARD::B(I),XS(i)
      • S(i);N_GUARD::B(I)
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