MESON Chess Problem Database

Problem Display
PID: 159499 (2B5/1QK2N2/2p3pR/1p2Rp2/5kb1/3p1P1p/3P3P/6N1 w - - 0 1)

Antonov, Yuri Mikhailovich

Die Schwalbe, 1980

2B5/1QK2N2/2p3pR/1p2Rp2/5kb1/3p1P1p/3P3P/6N1

#2

10 + 8

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...b4
      • 2.Qxb4#
  • Tries
    • 1.Sxh3+?
      • 1...Kxf3
        • 2.Qxc6#
      • 1...Bxh3!
    • 1.Rxg6?
      • 1...Bxf3
        • 2.Sxh3#
      • 1...Bh5
        • 2.Rxf5#
      • 1...b4
        • 2.Qxb4#
      • 1...c5!
    • 1.Qxc6?
      • 1...Bxf3
        • 2.Qxf3#
      • 1...Bh5
        • 2.Sxh3#
      • 1...b4
        • 2.Qc4#
      • 1...g5!
  • Keys
    • 1.Rh4!
      • 1...b4
        • 2.Qxb4#
      • 1...c5
        • 2.Sxh3#
      • 1...g5
        • 2.Rxf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(e);OGATE::QAR(G),XP(e)
  • Tries
    • Try
      • S(A);CHECK,XP(b)
      • Vars
        • K(c);P-FLIGHT,P_SPINP(g),XP(D)::QAB(G),XP(g)
      • Refutation
        • B(d);XS(A)
    • Try
      • R(F);XP(h)
      • Vars
        • B(d);N_GUARD,SBLOCK,XP(D)::S(A),XP(b)
        • B(d);N_GUARD::R1(E),XP(f)
        • P(e);OGATE::QAR(G),XP(e)
      • Refutation
        • P(g);
    • Try
      • Q(G);XP(g)
      • Vars
        • B(d);OGATE,XP(D)::QAR1(G),XB(d)
        • B(d);N_GUARD::S(A),XP(b)
        • P(e);N_GUARD::QAR(G)
      • Refutation
        • P(h);
  • Actual
    • R(F);P_PINB(d)
    • Vars
      • P(e);OGATE::QAR(G),XP(e)
      • P(g);::S(A),XP(b)
      • P(h);N_GUARD::R1(E),XP(f)
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).