MESON Chess Problem Database

Problem Display
PID: 48295 (2k5/1N5R/1pq5/3p4/8/1R6/3Q3B/3K4 w - - 0 1)

Mota, T

2nd Prize, Chess Review (Decalet Ty.), 1943

2k5/1N5R/1pq5/3p4/8/1R6/3Q3B/3K4

#2

6 + 4

3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Qc1+
      • 2.Qxc1#
    • 1...Qc2+
      • 2.Qxc2#
    • 1...Qc3
      • 2.Rxc3#
      • 2.Qxc3#
  • Tries
    • 1.Qc2?
      • threat
        • 2.Qxc6#
      • 1...Qc7
        • 2.Qxc7#
      • 1...Qc4
        • 2.Qf5#
      • 1...Qc3
        • 2.Rxc3#
        • 2.Qf5#
        • 2.Qxc3#
      • 1...Qc5
        • 2.Qf5#
      • 1...Qxc2+!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qxc6#
      • 1...Qxc3
        • 2.Rxc3#
      • 1...Qc7
        • 2.Qxc7#
      • 1...Qc4
        • 2.Qh8#
      • 1...Qc5
        • 2.Qh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • Q(c);CHECK,OGATEB::QAB(B),XQ(c)
    • Q(c);CHECK,OGATEB::QAR(B),XQ(c)
  • Tries
    • Try
      • Q(B);P_PINQ(c)
      • Threat
        • QAR2(B),XQ(c)
      • Vars
        • Q(c);OGATE::QAR1(B),XQ(c)
        • Q(c);N_GUARD::QAB(B)
      • Refutation
        • Q(c);CHECK,N_SPINQ(c),XQ(B)
  • Actual
    • Q(B);P_PINQ(c)
    • Threat
      • QAR2(B),XQ(c)
    • Vars
      • Q(c);N_SPINQ(c),OGATE,XQ(B)::R(D),XQ(c)
      • Q(c);OGATE::QAR1(B),XQ(c)
      • Q(c);N_GUARD::QAR(B)
      • Q(c);N_GUARD::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).