MESON Chess Problem Database

Problem Display
PID: 231791 (2n1nB1K/rR6/1q2bkB1/3P2pP/3r3P/2R2N2/3b3N/Q7 w - - 0 1)

Uris, Miguel

ChessStar, 2017

2n1nB1K/rR6/1q2bkB1/3P2pP/3r3P/2R2N2/3b3N/Q7

#2

11 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rf4
      • 2.hxg5#
    • 1...Be1
      • 2.hxg5#
    • 1...Bxc3
      • 2.hxg5#
    • 1...Scd6
      • 2.Be7#
    • 1...Se7
      • 2.Bxe7#
    • 1...Sed6
      • 2.Bg7#
    • 1...Sg7
      • 2.Bxg7#
  • Keys
    • 1.Rc6!
      • threat
        • 2.Sg4#
      • 1...Qxc6
        • 2.Qxd4#
      • 1...Rxa1
        • 2.Rf7#
      • 1...Qb2
        • 2.Rxe6#
      • 1...Bc3
        • 2.hxg5#
      • 1...Scd6
        • 2.Be7#
      • 1...Sed6
        • 2.Bg7#
      • 1...g4
        • 2.Sxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • R(b);S_CUTB(a)::P(E),XP(c)
    • B(a);N_GUARD::P(E),XP(c)
    • B(a);N_GUARD,XR(C)::P(E),XP(c)
    • S(h);N_GUARD::B(J)
    • S(h);N_GUARD::B(J),XS(h)
    • S(i);N_GUARD::B(J)
    • S(i);N_GUARD::B(J),XS(i)
  • Actual
    • R(C);P_PINB(e),P_PINR(b)
    • Threat
      • S(B)
    • Vars
      • Q(d);N_GUARD,N_SPINB(e),XR(C)::QAB(A),XR(b)
      • R(g);N_GUARD,N_SPINR(b),XQ(A)::R1(I)
      • Q(d);N_GUARD,N_SPINR(b)::R1(C),XB(e)
      • B(a);N_GUARD,N_SPINR(b)::P(E),XP(c)
      • S(h);N_GUARD,N_SPINB(e)::B(J)
      • S(i);N_GUARD,N_SPINB(e)::B(J)
      • P(c);::S(B),XP(c)
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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).