MESON Chess Problem Database

Problem Display
PID: 199908 (8/b3N2b/2n5/2p3K1/1n2kPp1/1p6/4P3/Q5B1 w - - 0 1)

Karin, Aleksey

Zadachi i Etyudi, 2017

8/b3N2b/2n5/2p3K1/1n2kPp1/1p6/4P3/Q5B1

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Qb1#
    • 1...Sd5
      • 2.Qb1#
    • 1...Sa6
      • 2.Qb1#
    • 1...Sa5
      • 2.Qe5#
    • 1...Se5
      • 2.Qxe5#
    • 1...Sxe7
      • 2.Qe5#
    • 1...Sb8
      • 2.Qe5#
    • 1...Sd8
      • 2.Qe5#
  • Tries
    • 1.Sd5?
      • threat
        • 2.Sc3#
        • 2.Sf6#
      • 1...Sxd5
        • 2.Qb1#
      • 1...Sa2
        • 2.Sf6#
      • 1...Kxd5!
    • 1.Qc3?
      • threat
        • 2.Qe3#
      • 1...Sxe7
        • 2.Qe5#
        • 2.Qc4#
      • 1...Sc2
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sd5
        • 2.Qd3#
      • 1...c4!
    • 1.Qg7?
      • threat
        • 2.Qxh7#
      • 1...Sxe7
        • 2.Qe5#
      • 1...Bg6
        • 2.Qxg6#
      • 1...Bg8
        • 2.Qg6#
      • 1...Sd4
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Bf5!
    • 1.Qb1+?
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sc2!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qxh7#
      • 1...Sxe7
        • 2.Qe5#
      • 1...Bf5
        • 2.Qh1#
      • 1...Bg6
        • 2.Qh1#
      • 1...Bg8
        • 2.Qh1#
      • 1...Sd4
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • S(b);N_GUARD::QAB(A)
    • S(f);N_GUARD::QAR1(A)
    • S(f);N_GUARD::QAR1(A),XS(f)
    • S(f);N_GUARD,XS(F)::QAR1(A)
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);N_GUARD,SBLOCK,XS(F)::QAB(A)
        • S(b);::S(F)
      • Refutation
        • K(c);S_FLIGHT,XS(F)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • S(b);N_GUARD::QAB1(A)
        • S(b);N_GUARD::QAB1(A),XS(b)
      • Refutation
        • P(e);
    • Try
      • Q(A);
      • Threat
        • QAB(A),XB(h)
      • Vars
        • S(f);N_GUARD,XS(F)::QAR1(A)
        • B(h);N_GUARD::QAB(A),XB(h)
        • B(h);N_GUARD::QAB(A)
        • S(f);N_GUARD::QAR1(A)
        • S(f);N_GUARD::QAR1(A),XS(f)
      • Refutation
        • B(h);
    • Try
      • Q(A);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAB1(A),XS(b)
      • Refutation
        • S(b);P_SPINS(b)
  • Actual
    • Q(A);
    • Threat
      • QAB(A),XB(h)
    • Vars
      • S(f);N_GUARD,XS(F)::QAR1(A)
      • B(h);OGATE::QAB(A)
      • S(f);N_GUARD::QAR1(A)
      • S(f);N_GUARD::QAR1(A),XS(f)
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