MESON Chess Problem Database

Problem Display
PID: 229224 (8/8/7B/5P1B/5Q2/3P3p/1Nr2R1K/1n1bk2N w - - 0 1)

Regos, Imre

Nepszava, 1926

8/8/7B/5P1B/5Q2/3P3p/1Nr2R1K/1n1bk2N

#2

9 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Rf1#
    • 1...Rxf2+
      • 2.Qxf2#
    • 1...Rc3
      • 2.Rf1#
    • 1...Rc4
      • 2.Rf1#
    • 1...Rc5
      • 2.Rf1#
    • 1...Rc6
      • 2.Rf1#
    • 1...Rc7
      • 2.Rf1#
    • 1...Rc8
      • 2.Rf1#
  • Tries
    • 1.Re2+?
      • 1...Bxe2
        • 2.Qf2#
      • 1...Rxe2+!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qg1#
      • 1...Rxf2+
        • 2.Qxf2#
      • 1...Be2
        • 2.Rf3#
      • 1...Sd2
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(d);N_PINR(C)::R1(C)
    • R(d);CHECK,OGATE,XR(C)::QAB1(F),XR(d)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • B(b);XR(C)::QAB1(F)
      • Refutation
        • R(d);CHECK,XR(C)
  • Actual
    • Q(F);
    • Threat
      • QAR2(F)
    • Vars
      • R(d);CHECK,OGATE,P_SPINR(d),XR(C)::QAB1(F),XR(d)
      • B(b);N_PINR(C),SBLOCK::QAB(F)+R(C)
      • S(a);N_PINR(C),SBLOCK::QAB(F)+R(C)
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).