MESON Chess Problem Database

Problem Display
PID: 255156 (2K3B1/p2N4/1pk5/2P1P3/Pp1ppp2/8/2Pb1B2/nQ5b w - - 0 1)

Sukhodolov, Nikolai

Zadachi i Etyudi, 2006

2K3B1/p2N4/1pk5/2P1P3/Pp1ppp2/8/2Pb1B2/nQ5b

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Sb8#
  • Tries
    • 1.Qf1?
      • threat
        • 2.Qb5#
      • 1...d3
        • 2.Sb8#
      • 1...b5
        • 2.Qxb5#
        • 2.axb5#
      • 1...a6!
    • 1.Qb3?
      • threat
        • 2.Bd5#
        • 2.Qd5#
        • 2.Qe6#
      • 1...e3
        • 2.Qe6#
      • 1...Sxb3!
    • 1.Qxb4?
      • threat
        • 2.Sb8#
        • 2.Qb5#
      • 1...b5
        • 2.Sb8#
        • 2.Qxb5#
        • 2.axb5#
      • 1...a6
        • 2.Sb8#
        • 2.Qxb6#
      • 1...Bxb4!
  • Keys
    • 1.c4!
      • threat
        • 2.Bd5#
      • 1...bxc4 ep
        • 2.Qb5#
      • 1...dxc4 ep
        • 2.Sb8#
      • 1...e3
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(e);::S(G)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • P(e);::S(G)
      • Refutation
        • P(j);
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Vars
        • P(f);::QAR2(A)
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);XP(d)
      • Threat
        • DUALS(2)
      • Refutation
        • B(c);XQ(A)
  • Actual
    • P(B);
    • Threat
      • B(I)
    • Vars
      • P(d);EP,OGATE,XP(B)::QAB1(A)
      • P(e);EP,XP(B)::S(G)
      • P(f);OGATE::QAR(A)
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