MESON Chess Problem Database

Problem Display
PID: 264252 (N7/1r3pr1/p1k1p3/n5pR/1b2N2P/1Qp1B3/n6K/3R1B2 w - - 0 1)

Burda, Josef

Kubecka, Jan

Prace, 1983

N7/1r3pr1/p1k1p3/n5pR/1b2N2P/1Qp1B3/n6K/3R1B2

#2

9 + 11

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6+
      • 2.Rxd6#
    • 1...e5
      • 2.Qd5#
  • Tries
    • 1.Qc4+?
      • 1...Bc5
        • 2.Rd6#
        • 2.Qxc5#
      • 1...Sxc4!
    • 1.Qxe6+?
      • 1...Bd6+
        • 2.Rxd6#
        • 2.Qxd6#
      • 1...fxe6!
  • Keys
    • 1.Bg2!
      • threat
        • 2.Sxc3#
      • 1...Bd6+
        • 2.Rxd6#
      • 1...Kb5
        • 2.Sd6#
      • 1...gxh4
        • 2.Sg3#
      • 1...Rd7
        • 2.Sd6#
      • 1...Rb5
        • 2.Sc5#
      • 1...c2
        • 2.Sc3#
      • 1...e5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(c);CHECK,N_GUARD::R1(A),XB(c)
    • P(h);N_GUARD::QAB1(D)
  • Tries
    • Try
      • Q(D);CHECK
      • Refutation
        • S(d);XQ(D)
    • Try
      • Q(D);CHECK,XP(h)
      • Refutation
        • P(j);XQ(D)
  • Actual
    • B(B);
    • Threat
      • B(B)+S(F),XP(b)
    • Vars
      • B(c);CHECK,N_GUARD::R1(A),XB(c)
      • K(g);N_GUARD,P_SPINB(c),P_SPINP(e),S_FLIGHT::S(F)
      • P(e);XP(G)::B(B)+S(F)
      • R(i);SBLOCK::B(B)+S(F)
      • P(b);::B(B)+S(F)
      • P(h);N_GUARD::QAB1(D)
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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).