MESON Chess Problem Database

Problem Display
PID: 6187 (3r4/b7/5Rp1/1p1k4/p1R3N1/Bn1K3p/B5n1/7Q w - - 0 1)

Funk, Jacob E

The Problemist, 1927

3r4/b7/5Rp1/1p1k4/p1R3N1/Bn1K3p/B5n1/7Q

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Rxd6#
    • 1...Ra8
      • 2.Rd6#
    • 1...Rb8
      • 2.Rd6#
    • 1...Rc8
      • 2.Rd6#
    • 1...Re8
      • 2.Rd6#
    • 1...Rf8
      • 2.Rd6#
    • 1...Rg8
      • 2.Rd6#
    • 1...Rh8
      • 2.Rd6#
    • 1...Bd4
      • 2.Rxd4#
    • 1...Bc5
      • 2.Rxc5#
    • 1...Bb8
      • 2.Rd4#
      • 2.Rc5#
    • 1...Sa1
      • 2.Rd4#
      • 2.Rc5#
    • 1...Sc1+
      • 2.Rxc1#
    • 1...Sd2
      • 2.Rd4#
      • 2.Rc5#
    • 1...Sd4
      • 2.Rxd4#
      • 2.Rc5#
    • 1...Sa5
      • 2.Rd4#
      • 2.Rc5#
    • 1...Sc5+
      • 2.Rxc5#
    • 1...h2
      • 2.Qxg2#
  • Keys
    • 1.Re4!
      • threat
        • 2.Re5#
      • 1...Se1+
        • 2.Rxe1#
      • 1...Sf4+
        • 2.Rexf4#
      • 1...Rd6
        • 2.Rxd6#
      • 1...Re8
        • 2.Rd6#
      • 1...Bd4
        • 2.Rxd4#
      • 1...Bb8
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • R(i);N_GUARD::R1(G),XR(i)
    • R(i);N_GUARD::R1(G)
    • B(h);N_GUARD::R1(E),XB(h)
    • S(b);CHECK,OGATEB::B(B)+R(E),XS(b)
    • S(b);CHECK::B(B)+R(E),DCHECK,XS(b)
    • P(c);N_GUARD::QAB(A),XS(a)
  • Actual
    • R(E);N_PINS(a),P_PINS(b)
    • Threat
      • R1(E)
    • Vars
      • S(a);CHECK,OGATEB::QAB(A)+R(E),XS(a)
      • R(i);N_GUARD::R1(G),XR(i)
      • R(i);N_GUARD::R1(G)
      • B(h);N_GUARD::R1(E),XB(h)
      • B(h);N_GUARD::R1(E)
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).