MESON Chess Problem Database

Problem Display
PID: 141530 (6K1/5R2/b5p1/R1r1k1P1/1p3N2/2N1rP1B/7P/B1n1Q1b1 w - - 0 1)

Antonov, Yuri Mikhailovich

Probleemblad, 1977

6K1/5R2/b5p1/R1r1k1P1/1p3N2/2N1rP1B/7P/B1n1Q1b1

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5
      • 2.Sxb5#
    • 1...Rd5
      • 2.Rxd5#
    • 1...Bd3
      • 2.Se4#
    • 1...Bc4
      • 2.Sb5#
  • Tries
    • 1.Qxe3+?
      • 1...Kd6
        • 2.Qe6#
      • 1...Bxe3!
  • Keys
    • 1.Rd7!
      • threat
        • 2.Sxg6#
      • 1...Bc4+
        • 2.Scd5#
      • 1...Kxf4
        • 2.Qg3#
      • 1...Rd5
        • 2.Scxd5#
      • 1...Bd3
        • 2.Sce2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(e);N_GUARD::B(A)+S(D),XR(e)
    • R(e);OGATE::R1(H),XR(e)
    • B(g);::B(A)+S(D)
    • B(g);P_PINR(J),S_CUTR(e)::B(A)+S(D)
  • Tries
    • Try
      • Q(B);CHECK,P_PINR(e),XR(c)
      • Vars
        • K(f);N_SPINR(e),OGATE,S_FLIGHT::QAR1(B)
      • Refutation
        • B(b);XQ(B)
  • Actual
    • R(J);
    • Threat
      • S(G),XP(h)
    • Vars
      • B(g);CHECK,S_CUTR(e)::B(A)+S(D)
      • K(f);N_SPINR(c),OGATEB,S_FLIGHT,XS(G)::QAB1(B)
      • R(e);N_GUARD::B(A)+S(D),XR(e)
      • B(g);::B(A)+S(D)
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).