MESON Chess Problem Database

Problem Display
PID: 167053 (2n1n1b1/8/3rp1Qb/2P1k1P1/1N6/1Np1P1K1/8/2B1R3 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

StrateGems, 2016

2n1n1b1/8/3rp1Qb/2P1k1P1/1N6/1Np1P1K1/8/2B1R3

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.exd4#
    • 1...Rd5
      • 2.Sc6#
  • Tries
    • 1.Kf3?
      • threat
        • 2.Qe4#
      • 1...Bxg5
        • 2.Qxg5#
      • 1...Rd4
        • 2.exd4#
      • 1...Sf6
        • 2.Qxf6#
      • 1...Bh7!
    • 1.Sa5?
      • threat
        • 2.Sc4#
      • 1...Rd4
        • 2.Sac6#
      • 1...Sb6!
    • 1.Qf6+?
      • 1...Ke4
        • 2.Qf4#
      • 1...Sxf6!
  • Keys
    • 1.e4!
      • threat
        • 2.Bf4#
      • 1...Rd3+
        • 2.Sxd3#
      • 1...Bxg5
        • 2.Qxg5#
      • 1...Rd2
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(c);OGATE::R(B)+P(D)DCHECK,XR(c)
    • R(c);N_GUARD,SBLOCK::S(F)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Threat
        • QAR1(I)
      • Vars
        • B(e);OGATE,XP(H)::QAR2(I),XB(e)
        • R(c);OGATE::R(B)+P(D)DCHECK,XR(c)
        • S(g);N_GUARD::QAB1(I),XS(g)
      • Refutation
        • B(h);
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • R(c);N_GUARD::S(C)
      • Refutation
        • S(f);
    • Try
      • Q(I);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(I)
      • Refutation
        • S(g);XQ(I)
  • Actual
    • P(D);
    • Threat
      • B(A)
    • Vars
      • R(c);CHECK,N_GUARD::S(F),XR(c)
      • B(e);OGATE,XP(H)::QAR2(I),XB(e)
      • R(c);N_GUARD::S(F)
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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).