MESON Chess Problem Database

Problem Display
PID: 151409 (8/8/rn1N2R1/4k3/p2pPn1p/3R4/7Q/4K3 w - - 0 1)

Akerblom, Johan Axel

Schackvarlden, 1925

8/8/rn1N2R1/4k3/p2pPn1p/3R4/7Q/4K3

#2

6 + 7

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Re3?
      • threat
        • 2.Sf7#
      • 1...dxe3
        • 2.Qb2#
      • 1...d3
        • 2.Qb2#
      • 1...Ra7!
    • 1.Rf3?
      • threat
        • 2.Qxf4#
      • 1...d3
        • 2.Qb2#
      • 1...Sd5!
  • Keys
    • 1.Rdg3!
      • threat
        • 2.R3g5#
      • 1...Sg2+
        • 2.Rxg2#
      • 1...Sd3+
        • 2.Rxd3#
      • 1...Sxg6
        • 2.Rxg6#
      • 1...hxg3
        • 2.Qh8#
      • 1...d3
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);
      • Threat
        • S(E)
      • Vars
        • P(b);OGATEB,XR(C)::QAB(B)
        • P(b);OGATEB::QAB(B)
      • Refutation
        • R(f);
    • Try
      • R(C);
      • Threat
        • QAB1(B),XS(c)
      • Vars
        • P(b);OGATEB::QAB(B)
      • Refutation
        • S(g);
  • Actual
    • R(C);N_PINS(c)
    • Threat
      • R(C)
    • Vars
      • S(c);CHECK,OGATEB::QAB(B)+R(C),XS(c)
      • S(c);OGATE,XR(F)::QAB(B)+R(C),XS(c)
      • P(d);OGATE,XR(C)::QAB(B)
      • P(b);OGATEB::QAB(B)
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).