MESON Chess Problem Database

Problem Display
PID: 76229 (5B1K/b7/3Q2N1/3b4/3k4/8/2pP4/2N5 w - - 0 1)

Novitski, Petr Adrinovich

Troll, 2005

5B1K/b7/3Q2N1/3b4/3k4/8/2pP4/2N5

#2

6 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qb4#
    • 1...Ke4
      • 2.Qf4#
  • Tries
    • 1.Sf4?
      • threat
        • 2.Qxd5#
      • 1...Kc4
        • 2.Qb4#
        • 2.Qxd5#
      • 1...Ke4!
    • 1.Bg7+?
      • 1...Ke4
        • 2.Qf4#
      • 1...Kc4!
    • 1.Qf6+?
      • 1...Ke4
        • 2.Qf4#
      • 1...Kc4!
  • Keys
    • 1.d3!
      • threat
        • 2.Qe5#
      • 1...Kc3
        • 2.Qb4#
      • 1...Ke3
        • 2.Qf4#
      • 1...Bb8
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • K(b);N_SPINB(c),P-FLIGHT::QAR1(C)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR1(C),XB(c)
      • Refutation
        • K(b);N_SPINB(c),P-FLIGHT
    • Try
      • B(E);CHECK
      • Vars
        • K(b);N_SPINB(c),P-FLIGHT::QAR1(C)
      • Refutation
        • K(b);N_SPINB(c),P-FLIGHT
    • Try
      • Q(C);CHECK,N_PINB(c)
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • P(B);
    • Threat
      • QAB1(C)
    • Vars
      • K(b);N_SPINB(c),S_FLIGHT::QAB1(C)
      • B(d);N_GUARD::QAB1(C)
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