MESON Chess Problem Database

Problem Display
PID: 222535 (5B1K/8/1N3Q2/3B4/1p1n4/k2nN2R/3R4/q7 w - - 0 1)

Strebkovs, Andrejs

Variantim, 2003

5B1K/8/1N3Q2/3B4/1p1n4/k2nN2R/3R4/q7

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3
      • 2.Ra2#
    • 1...Qc1
      • 2.Ra2#
    • 1...Qd1
      • 2.Ra2#
    • 1...Qe1
      • 2.Ra2#
    • 1...Qf1
      • 2.Ra2#
    • 1...Qg1
      • 2.Ra2#
    • 1...Qh1
      • 2.Ra2#
    • 1...Qa2
      • 2.Rxa2#
    • 1...Sc1
      • 2.Sec4#
    • 1...Se1
      • 2.Sec4#
    • 1...Sb2
      • 2.Sc2#
    • 1...Sf2
      • 2.Sec4#
    • 1...Sf4
      • 2.Sec4#
    • 1...Sc5
      • 2.Sec4#
    • 1...Se5
      • 2.Sec4#
    • 1...Sc2
      • 2.Sxc2#
    • 1...Se2
      • 2.Sc2#
      • 2.Qxa1#
    • 1...Sb3
      • 2.Sec4#
    • 1...Sf3
      • 2.Sc2#
      • 2.Qxa1#
    • 1...Sb5
      • 2.Sc2#
      • 2.Qxa1#
    • 1...Sf5
      • 2.Sc2#
      • 2.Qxa1#
    • 1...Sc6
      • 2.Sc2#
      • 2.Qxa1#
    • 1...Se6
      • 2.Sc2#
      • 2.Qxa1#
  • Tries
    • 1.Bxb4+?
      • 1...Sxb4
        • 2.Sec4#
      • 1...Kxb4!
  • Keys
    • 1.Qg7!
      • threat
        • 2.Qa7#
      • 1...Qd1
        • 2.Ra2#
      • 1...Sb2
        • 2.Sc2#
      • 1...Sc5
        • 2.Sec4#
      • 1...Sc2
        • 2.Sxc2#
      • 1...Se2
        • 2.Sc2#
        • 2.Qxa1#
      • 1...Sb3
        • 2.Sec4#
      • 1...Sf3
        • 2.Sc2#
        • 2.Qxa1#
      • 1...Sb5
        • 2.Sc2#
        • 2.Qxa1#
      • 1...Sf5
        • 2.Sc2#
        • 2.Qxa1#
      • 1...Sc6
        • 2.Sc2#
        • 2.Qxa1#
      • 1...Se6
        • 2.Sc2#
        • 2.Qxa1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 12
  • Sets
    • Q(a);N_GUARD::R1(A)
    • Q(a);N_GUARD,P_PINR(C)::R1(A)
    • Q(a);N_GUARD::R1(A),XQ(a)
    • S(c);::R(C)+S(B),DCHECK
    • S(c);SBLOCK::R(C)+S(B),DCHECK
    • S(c);N_SPINP(d)::R(C)+S(B),DCHECK
    • S(e);N_GUARD,P_PINQ(F)::S(B),XS(e)
    • S(e);P_PINQ(F),SBLOCK::S(B)
  • Tries
    • Try
      • B(G);CHECK,XP(d)
      • Vars
        • S(c);SBLOCK,XB(G)::R(C)+S(B),DCHECK
      • Refutation
        • K(b);S_FLIGHT,XB(G)
  • Actual
    • Q(F);
    • Threat
      • QAR(F)
    • Vars
      • Q(a);N_GUARD::R1(A)
      • S(c);SBLOCK::R(C)+S(B),DCHECK
      • S(c);N_SPINP(d)::R(C)+S(B),DCHECK
      • S(e);N_GUARD,P_PINQ(F)::S(B),XS(e)
      • S(e);P_PINQ(F),SBLOCK::S(B)
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