MESON Chess Problem Database

Problem Display
PID: 109740 (b6B/8/3P1R2/K1p2B2/2pk4/N1np2Qr/6qb/3R1N2 w - - 0 1)

Zagoruyko, Leonid Ivanovich

Revista Romana de Sah, 1951

b6B/8/3P1R2/K1p2B2/2pk4/N1np2Qr/6qb/3R1N2

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qd5
      • 2.Sc2#
    • 1...Bd5
      • 2.Rh6#
    • 1...Sd5
      • 2.Sb5#
  • Tries
    • 1.d7?
      • threat
        • 2.Rd6#
      • 1...Kd5
        • 2.Rd6#
        • 2.d8Q#
        • 2.d8R#
      • 1...Qd5
        • 2.Sc2#
      • 1...Bd5
        • 2.Rh6#
      • 1...Sd5
        • 2.Sb5#
      • 1...Rxh8!
  • Keys
    • 1.Be6!
      • threat
        • 2.Rf4#
      • 1...Ke4
        • 2.Rf4#
      • 1...Rxh8
        • 2.Qe3#
      • 1...Qe4
        • 2.Sc2#
      • 1...Be4
        • 2.Rh6#
      • 1...Se4
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • Q(a);N_GUARD,SBLOCK::S(C)
    • B(i);SBLOCK::B(I)+R(H)
    • S(c);N_GUARD,SBLOCK::S(C)
  • Tries
    • Try
      • P(G);
      • Threat
        • B(I)+R(H),DCHECK
      • Vars
        • Q(a);N_GUARD,SBLOCK::S(C)
        • B(i);SBLOCK::B(I)+R(H)
        • S(c);N_GUARD,SBLOCK::S(C)
      • Refutation
        • R(e);XB(I)
  • Actual
    • B(F);
    • Threat
      • B(I)+R(H),DCHECK
    • Vars
      • K(g);N_SPINP(d),P-FLIGHT::R1(H)
      • R(e);N_GUARD,XB(I)::QAB1(D)
      • Q(a);N_GUARD,SBLOCK::S(C)
      • B(i);SBLOCK::B(I)+R(H)
      • S(c);N_GUARD,SBLOCK::S(C)
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