MESON Chess Problem Database

Problem Display
PID: 120914 (4R1Bb/3pN3/1P5N/1Pr1k1p1/n3b3/3p4/3Q1BPK/5R2 w - - 0 1)

Stocchi, Ottavio

Molodoi Leninets, 1930

4R1Bb/3pN3/1P5N/1Pr1k1p1/n3b3/3p4/3Q1BPK/5R2

#2

11 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Bd4#
    • 1...d6
      • 2.Sg4#
      • 2.Sd5#
  • Tries
    • 1.Qxg5+?
      • 1...Bf5
        • 2.Sexf5#
        • 2.Sc8#
      • 1...Kd6!
    • 1.Qxd3?
      • threat
        • 2.Bg3#
      • 1...Kf4
        • 2.Bg3#
        • 2.Qg3#
      • 1...Kf6
        • 2.Bd4#
      • 1...Bf3
        • 2.Qd4#
      • 1...Bf5
        • 2.Qd4#
      • 1...Bxd3!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Bg3#
      • 1...Kf4
        • 2.Sg6#
      • 1...Kd6
        • 2.Sc8#
      • 1...Kf6
        • 2.Bd4#
      • 1...Rc4
        • 2.Sd5#
      • 1...Bf3
        • 2.Qd4#
      • 1...Bf5
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(e);S_FLIGHT::R(A)+B(C),DCHECK
  • Tries
    • Try
      • Q(B);CHECK,XP(f)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(B);XP(a)
      • Threat
        • B(C)
      • Vars
        • K(e);S_FLIGHT::R(A)+B(C),DCHECK
        • B(c);::QAB1(B)
      • Refutation
        • B(c);XQ(B)
  • Actual
    • Q(B);
    • Threat
      • B(C)
    • Vars
      • K(e);P_SPINB(c),S_FLIGHT::S(I)
      • K(e);P_SPINR(d),S_FLIGHT::S(I)
      • K(e);S_FLIGHT::R(A)+B(C),DCHECK
      • R(d);::R(J)+S(I)
      • B(c);::QAB1(B)
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