MESON Chess Problem Database

Problem Display
PID: 197253 (r3k1b1/1R6/1N2pp1Q/2NR4/3q1p2/6pK/8/4b3 w q - 0 1)

Kapustin, Fedor Mikhailovich

Permyakov, Evgeni Nikolaevich

The Problemist, 2018

r3k1b1/1R6/1N2pp1Q/2NR4/3q1p2/6pK/8/4b3

#2

6 + 9

SOLUTION

  • SOUND
  • Tries
    • 1.Scd7?
      • threat
        • 2.Qf8#
      • 1...Ke7
        • 2.Sxf6#
      • 1...Kf7
        • 2.Sxf6#
      • 1...Kd8
        • 2.Qf8#
      • 1...Qc5
        • 2.Sxf6#
      • 1...Qb4
        • 2.Sxf6#
      • 1...Bb4!
    • 1.Qg7?
      • threat
        • 2.Re7#
        • 2.Qe7#
        • 2.Qxg8#
      • 1...Qxd5
        • 2.Qe7#
        • 2.Qxg8#
      • 1...exd5
        • 2.Qe7#
        • 2.Qxg8#
      • 1...Ra7
        • 2.Rb8#
        • 2.Qe7#
        • 2.Qxg8#
      • 1...Bf7
        • 2.Qxf7#
      • 1...Bh7
        • 2.Re7#
        • 2.Qe7#
        • 2.Qf7#
      • 1...Qxc5!
    • 1.Qh5+?
      • 1...Bf7
        • 2.Qxf7#
      • 1...Kf8!
    • 1.Qg6+?
      • 1...Bf7
        • 2.Qxf7#
      • 1...Kf8!
  • Keys
    • 1.Sbd7!
      • threat
        • 2.Qf8#
      • 1...Ke7
        • 2.Sxf6#
      • 1...Kf7
        • 2.Sxf6#
      • 1...Kd8
        • 2.Qf8#
      • 1...0-0-0
        • 2.Sb6#
      • 1...Qxc5
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR1(E)
      • Vars
        • K(h);P-FLIGHT::R(F)+S(B),XP(f)
        • K(h);S_FLIGHT::R(F)+S(B),XP(f)
        • K(h);P-FLIGHT::QAR2(E)
        • Q(c);N_GUARD::S(B),XP(f)
      • Refutation
        • B(a);
    • Try
      • Q(E);
      • Threat
        • DUALS(3)
      • Vars
        • B(i);N_GUARD::QAB1(E),XB(i)
      • Refutation
        • Q(c);XS(B)
    • Try
      • Q(E);CHECK
      • Vars
        • B(i);N_GUARD,P_SPINB(i)::QAB1(E),XB(i)
      • Refutation
        • K(h);P-FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • B(i);N_GUARD,P_SPINB(i)::QAB1(E),XB(i)
      • Refutation
        • K(h);P-FLIGHT
  • Actual
    • S(D);
    • Threat
      • QAR1(E)
    • Vars
      • K(h);P-FLIGHT::R(F)+S(D),XP(f)
      • K(h);S_FLIGHT::R(F)+S(D),XP(f)
      • K(h);P-FLIGHT::QAR2(E)
      • K(h);0-0-0::S(D)
      • Q(c);N_GUARD,XS(B)::S(D),XP(f)
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