MESON Chess Problem Database

Problem Display
PID: 247280 (5b2/2pK1B2/8/Qp4P1/3kp1P1/PP1NR1n1/5P1B/8 w - - 0 1)

Janevski, Zivko

Uralski Problemist, 2010

5b2/2pK1B2/8/Qp4P1/3kp1P1/PP1NR1n1/5P1B/8

#2

11 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bb4
      • 2.Qxb4#
    • 1...Bh6
      • 2.Qb4#
    • 1...Bg7
      • 2.Qb4#
    • 1...Sf1
      • 2.Be5#
    • 1...Sh1
      • 2.Be5#
    • 1...Se2
      • 2.Be5#
    • 1...Sf5
      • 2.Be5#
    • 1...Sh5
      • 2.Be5#
    • 1...b4
      • 2.Qe5#
  • Tries
    • 1.Qxc7?
      • threat
        • 2.Qe5#
      • 1...Bg7
        • 2.Qc5#
      • 1...Bd6!
    • 1.Qxb5?
      • threat
        • 2.Qc4#
        • 2.Qe5#
      • 1...Bc5
        • 2.Qc4#
        • 2.Qxc5#
      • 1...Bd6
        • 2.Qc4#
      • 1...Bg7
        • 2.Qc4#
        • 2.Qb4#
        • 2.Qc5#
      • 1...c5
        • 2.Qc4#
      • 1...Kc3!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Qc3#
      • 1...Kxc5
        • 2.Qa7#
      • 1...Ke5
        • 2.Rxe4#
      • 1...Se2
        • 2.Qb4#
      • 1...b4
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • B(f);N_GUARD::QAR2(H),XB(f)
    • B(f);N_GUARD::QAR2(H)
    • S(a);OGATE::B(B)
    • P(d);OGATE::QAB1(H)
  • Tries
    • Try
      • Q(H);XP(e)
      • Threat
        • QAB1(H)
      • Vars
        • B(f);N_GUARD::QAB1(H)
      • Refutation
        • B(f);
    • Try
      • Q(H);XP(d)
      • Threat
        • DUALS(2)
      • Vars
        • B(f);::QAR1(H)
        • P(e);::QAR1(H)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(E);
    • Threat
      • QAB1(H)
    • Vars
      • K(b);OGATEB,P_SPINP(d),S_FLIGHT,XS(E)::QAB(H)
      • K(b);P_SPINP(c),P_SPINS(a),S_FLIGHT::R1(F),XP(c)
      • S(a);::QAR2(H)
      • P(d);::S(E)
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