MESON Chess Problem Database

Problem Display
PID: 215922 (n1R2r2/2qpB2p/1p3p1Q/1p5N/pR3p2/2k5/2Pp3K/3B4 w - - 0 1)

Moiseev, VN

Turoverov, Valentin Alekseevich

Probleemblad, 1980

n1R2r2/2qpB2p/1p3p1Q/1p5N/pR3p2/2k5/2Pp3K/3B4

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rd8
      • 2.Qxf6#
    • 1...Re8
      • 2.Qxf6#
    • 1...Rg8
      • 2.Qxf6#
    • 1...Rh8
      • 2.Qxf6#
  • Tries
    • 1.Qxf4?
      • threat
        • 2.Qg3#
      • 1...Qc4
        • 2.Qe3#
      • 1...Qc5
        • 2.Qd4#
      • 1...Rg8
        • 2.Bxf6#
      • 1...d6
        • 2.Qd4#
      • 1...Rxc8!
  • Keys
    • 1.Sxf4!
      • threat
        • 2.Qh3#
      • 1...Qc4
        • 2.Se2#
      • 1...Qc5
        • 2.Sd5#
      • 1...d6
        • 2.Sd5#
      • 1...Rg8
        • 2.Qxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(l);N_GUARD::QAB(F),XP(g)
  • Tries
    • Try
      • Q(F);P_SPINQ(F),XP(d)
      • Threat
        • QAR(F)
      • Vars
        • Q(h);N_PINQ(F)::QAR2(F)
        • Q(h);N_PINQ(F)::QAB1(F)
        • R(l);N_GUARD::B(G),XP(g)
        • P(i);N_PINQ(F)::QAB1(F)
      • Refutation
        • R(l);N_SPINQ(h),XR(H)
  • Actual
    • S(E);P_SPINS(E),XP(d)
    • Threat
      • QAR(F)
    • Vars
      • Q(h);N_PINS(E)::S(E)
      • P(i);N_PINS(E)::S(E)
      • R(l);N_GUARD::QAB(F),XP(g)
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Developed and maintained by Brian Stephenson.
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