MESON Chess Problem Database

Problem Display
PID: 267977 (1n3Q2/2b2N2/2p5/6P1/2pk3n/2N5/1P2K3/8 w - - 0 1)

Kalinin, Aleksandr Konstantinovich

Shakhmatnaya kompozitsiya, 1995

1n3Q2/2b2N2/2p5/6P1/2pk3n/2N5/1P2K3/8

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ba5
      • 2.Qd6#
    • 1...Bb6
      • 2.Qd6#
    • 1...Bd6
      • 2.Qxd6#
    • 1...Bd8
      • 2.Qd6#
  • Tries
    • 1.Qg7+?
      • 1...Be5
        • 2.Qxe5#
      • 1...Kc5!
    • 1.Qh8+?
      • 1...Be5
        • 2.Qxe5#
      • 1...Kc5!
  • Keys
    • 1.Se5!
      • 1...Kxe5
        • 2.Qf6#
      • 1...Bxe5
        • 2.Qf2#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Ba5
        • 2.Qd6#
      • 1...Bb6
        • 2.Qd6#
      • 1...Bd8
        • 2.Qd6#
      • 1...Sg2
        • 2.Sf3#
      • 1...Sf3
        • 2.Sxf3#
      • 1...Sf5
        • 2.Sf3#
      • 1...Sg6
        • 2.Sf3#
      • 1...Sa6
        • 2.Sxc6#
      • 1...Sd7
        • 2.Sxc6#
      • 1...c5
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • B(e);N_GUARD::QAR2(F)
    • B(e);N_GUARD::QAR2(F),XB(e)
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • B(e);N_GUARD,P_SPINB(e)::QAB1(F),XB(e)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • B(e);N_GUARD,P_SPINB(e)::QAB1(F),XB(e)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(E);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(E)::QAB1(F)
      • B(e);SBLOCK,XS(E)::QAB(F)
      • B(e);N_GUARD::QAR2(F),XB(e)
      • B(e);N_GUARD::QAR2(F)
      • S(c);N_GUARD::S(E)
      • S(c);N_GUARD::S(E),XS(c)
      • S(f);N_GUARD::S(E),XP(d)
      • P(d);SBLOCK::QAR2(F)
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