MESON Chess Problem Database

Problem Display
PID: 274925 (n2R3B/8/2pbN3/2Nkpp2/2R1p3/1PP5/1rQ1BP1K/4r2b w - - 0 1)

Burda, Josef

Sachova skladba, 2023

n2R3B/8/2pbN3/2Nkpp2/2R1p3/1PP5/1rQ1BP1K/4r2b

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Qd2#
    • 1...Rxb3
      • 2.Qd2#
    • 1...Sb6
      • 2.Sc7#
    • 1...Sc7
      • 2.Sxc7#
    • 1...e3
      • 2.Qd3#
  • Tries
    • 1.Ra4?
      • threat
        • 2.Bc4#
        • 2.c4#
      • 1...Rxe2
        • 2.c4#
      • 1...Rxc2
        • 2.Bc4#
      • 1...Sb6!
    • 1.Rb4?
      • threat
        • 2.Bc4#
        • 2.c4#
      • 1...Rxe2
        • 2.c4#
      • 1...Rxc2
        • 2.Bc4#
      • 1...Sb6!
    • 1.Qd1+?
      • 1...Rd2
        • 2.Qxd2#
      • 1...Rxd1!
  • Keys
    • 1.Rxe4!
      • threat
        • 2.Bc4#
        • 2.Rxe5#
        • 2.Qd3#
        • 2.c4#
      • 1...Rxe2
        • 2.Qd3#
        • 2.c4#
      • 1...Rxc2
        • 2.Bc4#
        • 2.Rxe5#
      • 1...Bxe4
        • 2.Bc4#
        • 2.c4#
      • 1...fxe4
        • 2.Bc4#
        • 2.c4#
      • 1...Sb6
        • 2.Rxe5#
        • 2.Qd3#
      • 1...Rd1
        • 2.Bc4#
        • 2.Rxe5#
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • R(c);N_GUARD::QAR(A)
    • R(c);N_GUARD,XP(E)::QAR(A)
    • S(j);N_GUARD::S(I)
    • S(j);N_GUARD::S(I),XS(j)
    • P(d);N_GUARD::QAR2(A)
  • Tries
    • Try
      • R(G);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);P_PINP(C),XB(B)::P(F)
        • R(c);XQ(A)::B(B)
      • Refutation
        • S(j);
    • Try
      • R(G);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);P_PINP(C),XB(B)::P(F)
        • R(c);XQ(A)::B(B)
      • Refutation
        • S(j);
    • Try
      • Q(A);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::QAR(A),XR(c)
      • Refutation
        • R(a);XQ(A)
  • Actual
    • R(G);XP(d)
    • Threat
      • DUALS(4)
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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).