MESON Chess Problem Database

Problem Display
PID: 184475 (b5K1/Q4p2/1n2n3/1N2p2N/p2Pk1Pp/b3p3/qB2P3/2RB4 w - - 0 1)

Friedberg, Uly

Bulletin Ouvrier des Echecs, 1949

b5K1/Q4p2/1n2n3/1N2p2N/p2Pk1Pp/b3p3/qB2P3/2RB4

#2

10 + 11

15601 Albrecht-Leiss-Degener Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Sf6#
    • 1...Qd5
      • 2.Bc2#
    • 1...Bd5
      • 2.Bc2#
    • 1...Sc4
      • 2.Sc3#
      • 2.Qxa8#
    • 1...Sd5
      • 2.Bc2#
    • 1...Sd7
      • 2.Sc3#
    • 1...Sc8
      • 2.Sc3#
    • 1...Sxd4
      • 2.Sc3#
    • 1...Sf4
      • 2.Sf6#
  • Tries
    • 1.Qb7+?
      • 1...Qd5
        • 2.Bc2#
      • 1...Sd5
        • 2.Bc2#
      • 1...Bxb7!
    • 1.Qxa8+?
      • 1...Qd5
        • 2.Bc2#
      • 1...Sd5
        • 2.Bc2#
      • 1...Sxa8!
  • Keys
    • 1.Qxf7!
      • threat
        • 2.Qf3#
      • 1...Kd5
        • 2.Sf6#
      • 1...Sxd4
        • 2.Sc3#
      • 1...exd4
        • 2.Qf5#
      • 1...Sf4
        • 2.Sf6#
      • 1...Sc5
        • 2.Sd6#
      • 1...Sg5
        • 2.Bc2#
      • 1...Sc7
        • 2.Bc2#
      • 1...Sg7
        • 2.Bc2#
      • 1...Sd8
        • 2.Bc2#
      • 1...Sf8
        • 2.Bc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 5
  • Sets
    • K(e);S_FLIGHT::S(H)
    • Q(a);SBLOCK::B(B)
    • B(k);SBLOCK::B(B)
    • S(h);SBLOCK::B(B)
    • S(h);::S(G)
    • S(i);SBLOCK,XP(E)::S(G)
    • S(i);SBLOCK::S(H)
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • Q(a);P_SPINQ(a)::B(B)
        • S(h);P_SPINS(h)::B(B)
      • Refutation
        • B(k);XQ(I)
    • Try
      • Q(I);CHECK,XB(k)
      • Vars
        • Q(a);P_SPINQ(a)::B(B)
        • S(h);P_SPINS(h)::B(B)
      • Refutation
        • S(h);XQ(I)
  • Actual
    • Q(I);XP(j)
    • Threat
      • QAB1(I)
    • Vars
      • K(e);P_SPINS(i),S_FLIGHT::S(H)
      • S(i);P_PINQ(I),SBLOCK,XP(E)::S(G)
      • P(g);XP(E)::QAB1(I)
      • S(i);P_PINQ(I),SBLOCK::S(H)
      • S(i);P_PINQ(I),S_CUTB(b)::S(G)
      • S(i);P_PINQ(I)::B(B)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).