MESON Chess Problem Database

Problem Display
PID: 135739 (1B2r1r1/3R1R1B/Kp2Q1qp/3Pb2b/4k1N1/5N2/4P3/7n w - - 0 1)

Ancin, Andrej

Smer, 1963

1B2r1r1/3R1R1B/Kp2Q1qp/3Pb2b/4k1N1/5N2/4P3/7n

#2

10 + 9

14649 Andrej Ancin - Chess Compositions 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5
      • 2.Qxf5#
    • 1...Rxb8
      • 2.Qxe5#
    • 1...Rc8
      • 2.Qxe5#
    • 1...Rd8
      • 2.Qxe5#
    • 1...Ref8
      • 2.Qxe5#
  • Tries
    • 1.Bxg6+?
      • 1...Rxg6
        • 2.Qf5#
      • 1...Bxg6!
  • Keys
    • 1.Qxb6!
      • threat
        • 2.Sd2#
      • 1...Qf5
        • 2.Qe3#
      • 1...Bd6
        • 2.Qd4#
      • 1...Bf6
        • 2.Qb1#
      • 1...Bc3
        • 2.Rf4#
      • 1...Bf4
        • 2.Rxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • Q(f);N_GUARD::QAB1(F),XQ(f)
    • R(h);N_GUARD,XB(J)::QAR1(F),XB(c)
    • R(h);N_GUARD::QAR1(F),XB(c)
  • Tries
    • Try
      • B(I);CHECK,XQ(f)
      • Vars
        • R(i);XB(I)::QAB1(F)
      • Refutation
        • B(d);XB(I)
  • Actual
    • Q(F);N_PINB(c),P_SPINQ(F),XP(e)
    • Threat
      • S(B)
    • Vars
      • Q(f);N_PINQ(F)::QAR1(F)
      • B(c);N_PINQ(F)::QAR1(F)
      • B(c);N_PINQ(F)::QAB(F)
      • B(c);N_GUARD::R1(H)
      • B(c);N_GUARD::R1(H),XB(c)
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).