MESON Chess Problem Database

Problem Display
PID: 133563 (6q1/n7/2p5/R1P1p1N1/2BkP3/2p1RP2/b4B2/N3K3 w - - 0 1)

Kazimov, Islam

StrateGems, 2008

6q1/n7/2p5/R1P1p1N1/2BkP3/2p1RP2/b4B2/N3K3

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc4
      • 2.Sc2#
    • 1...Bxc4
      • 2.Sc2#
  • Tries
    • 1.Ba6?
      • threat
        • 2.Sc2#
        • 2.Re2#
        • 2.Rd3#
      • 1...Qxg5
        • 2.Sc2#
        • 2.Rd3#
      • 1...Qb3
        • 2.Re2#
        • 2.Rd3#
      • 1...Qc4
        • 2.Sc2#
      • 1...Bb1
        • 2.Re2#
        • 2.Rd3#
      • 1...Bb3
        • 2.Re2#
        • 2.Rd3#
      • 1...Bc4
        • 2.Sc2#
      • 1...c2
        • 2.Sxc2#
        • 2.Rea3#
        • 2.Rb3#
        • 2.Rd3#
      • 1...Sb5!
  • Keys
    • 1.Ra4!
      • threat
        • 2.Re2#
        • 2.Rd3#
      • 1...Kxc5
        • 2.Rd3#
      • 1...Qxc4
        • 2.Se6#
      • 1...Qxg5
        • 2.Rd3#
      • 1...Bxc4
        • 2.Sb3#
      • 1...c2
        • 2.Rea3#
        • 2.Rb3#
        • 2.Rd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(g);SBLOCK,XB(F)::S(A)
    • B(a);SBLOCK,XB(F)::S(A)
  • Tries
    • Try
      • B(F);
      • Threat
        • DUALS(3)
      • Vars
        • Q(g);::S(A)
        • B(a);::S(A)
      • Refutation
        • S(f);
  • Actual
    • R(H);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);S_FLIGHT,XP(I)::B(C)+R(D)
      • Q(g);N_GUARD,P_SPINQ(g),XB(F)::S(J)
      • Q(g);XS(J)::B(C)+R(D),DCHECK
      • B(a);N_GUARD,P_SPINB(a),XB(F)::S(A)
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