MESON Chess Problem Database

Problem Display
PID: 103833 (3R4/5pK1/1P2pR1p/4k1pp/3pN3/Nr6/1n1Qb2b/1Bnr4 w - - 0 1)

Tan Hien Yan

Midweek Sports Referee, 1927

3R4/5pK1/1P2pR1p/4k1pp/3pN3/Nr6/1n1Qb2b/1Bnr4

#2

8 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Qxd4#
    • 1...Rf1
      • 2.Qxd4#
    • 1...Rg1
      • 2.Qxd4#
    • 1...Rh1
      • 2.Qxd4#
    • 1...Bf3
      • 2.Qxh2#
  • Keys
    • 1.Sxg5!
      • threat
        • 2.Sxf7#
      • 1...hxg5
        • 2.Qxg5#
      • 1...Rg1
        • 2.Qxd4#
      • 1...Rd3
        • 2.Qa5#
      • 1...Rg3
        • 2.Qf4#
      • 1...Bd3
        • 2.Qxh2#
      • 1...Scd3
        • 2.Qxe2#
      • 1...Sbd3
        • 2.Sc4#
      • 1...d3
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 4
  • Sets
    • R(b);N_GUARD::QAB1(B),XP(g)
    • B(d);OGATE::QAB(B),XB(e)
  • Actual
    • S(D);XP(i)
    • Threat
      • S(D),XP(m)
    • Vars
      • P(l);OGATE,XS(D)::QAR2(B),XP(l)
      • R(b);N_GUARD,P_PINS(D)::QAB1(B),XP(g)
      • R(f);N_GUARD,S_CUTB(d)::QAR(B)
      • R(f);P_PINS(D),S_CUTB(e)::QAB1(B)
      • B(d);OGATE::QAB(B),XB(e)
      • S(a);N_GUARD,S_CUTR(f)::QAR(B),XB(d)
      • S(c);N_GUARD,S_CUTB(d)::S(C)
      • P(g);N_GUARD,S_CUTR(f)::QAR2(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).