MESON Chess Problem Database

Problem Display
PID: 180315 (8/2nP4/p7/n2PP3/NN1kp3/8/2R1KP1B/8 w - - 0 1)

Lider, Valentin Viktorovich

Themes-64, 1983

8/2nP4/p7/n2PP3/NN1kp3/8/2R1KP1B/8

#2

9 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.d8Q?
      • 1...Sxd5
        • 2.Qxd5#
      • 1...e3
        • 2.Qh4#
      • 1...Sb3
        • 2.Sc6#
      • 1...Sc4
        • 2.Sc6#
      • 1...Sc6
        • 2.Sxc6#
      • 1...Sb7
        • 2.Sc6#
      • 1...Sb5
        • 2.Qb6#
      • 1...Se6
        • 2.dxe6#
      • 1...Se8
        • 2.Qb6#
      • 1...Sa8!
    • 1.d8S?
      • 1...Sxd5
        • 2.Se6#
      • 1...Sb3
        • 2.Sdc6#
      • 1...Sc4
        • 2.Sdc6#
      • 1...Sc6
        • 2.Sdxc6#
      • 1...Sb7
        • 2.Sdc6#
      • 1...Sb5
        • 2.Se6#
      • 1...Se6
        • 2.Sxe6#
      • 1...Sa8
        • 2.Se6#
      • 1...Se8
        • 2.Se6#
      • 1...e3!
  • Keys
    • 1.Sc5!
      • 1...Sxd5
        • 2.Se6#
      • 1...Sc4
        • 2.Sb3#
      • 1...Sb3
        • 2.Sxb3#
      • 1...Sc6
        • 2.Sb3#
      • 1...Sb7
        • 2.Sb3#
      • 1...Sb5
        • 2.Se6#
      • 1...Se6
        • 2.Sxe6#
      • 1...Sa8
        • 2.Se6#
      • 1...Se8
        • 2.Se6#
      • 1...e3
        • 2.fxe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(I);
      • Vars
        • S(e);OGATE,P_SPINS(e),XP(G)::QAR1(I),XS(e)
        • P(b);OGATEB::QAR(I)
        • S(c);N_GUARD::S(F)
        • S(c);N_GUARD::S(F),XS(c)
        • S(e);OGATE::QAB(I)
        • S(e);OGATE::QAR(I)+P(G),XS(e)
      • Refutation
        • S(e);
    • Try
      • P(I);
      • Vars
        • S(e);N_GUARD,XP(G)::S(I)
        • S(c);N_GUARD::S(I)
        • S(c);N_GUARD::S(I),XS(c)
        • S(e);N_GUARD::S(I)
        • S(e);N_GUARD::S(I),XS(e)
      • Refutation
        • P(b);
  • Actual
    • S(E);
    • Vars
      • S(e);N_GUARD,XP(G)::S(E)
      • S(c);N_GUARD::S(E)
      • S(c);N_GUARD::S(E),XS(c)
      • S(e);N_GUARD::S(E)
      • S(e);N_GUARD::S(E),XS(e)
      • P(b);OGATE::P(C),XP(b)
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