MESON Chess Problem Database

Problem Display
PID: 169144 (2n1RNn1/1K3p2/R2P4/P2kp3/7Q/B4p1B/8/8 w - - 0 1)

Mitroshin, Anatoly Anatolyovich

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Comm., Liylu-75 JT (SuperProblem), 2016

2n1RNn1/1K3p2/R2P4/P2kp3/7Q/B4p1B/8/8

#2

9 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sxd6+
      • 2.Rxd6#
    • 1...e4
      • 2.Qxe4#
    • 1...f6
      • 2.Be6#
  • Tries
    • 1.Se6?
      • threat
        • 2.Sc7#
      • 1...Sxd6+
        • 2.Rxd6#
      • 1...fxe6
        • 2.Bxe6#
      • 1...e4!
    • 1.Bf1?
      • threat
        • 2.Bc4#
        • 2.Qc4#
      • 1...Sxd6+
        • 2.Rxd6#
      • 1...e4
        • 2.Qxe4#
      • 1...Sb6!
    • 1.Bf5?
      • threat
        • 2.Qe4#
      • 1...Sxd6+
        • 2.Rxd6#
      • 1...e4
        • 2.Qxe4#
      • 1...Sf6!
    • 1.Rc6?
      • threat
        • 2.Qc4#
      • 1...Sxd6+
        • 2.Rxd6#
      • 1...e4
        • 2.Qxe4#
      • 1...Sb6!
  • Keys
    • 1.Sd7!
      • threat
        • 2.Rxe5#
      • 1...Sxd6+
        • 2.Rxd6#
      • 1...e4
        • 2.Qxe4#
      • 1...Sce7
        • 2.Sb6#
      • 1...Sge7
        • 2.Sf6#
      • 1...f6
        • 2.Be6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(e);CHECK,OGATE,XP(F)::R1(E),XS(e)
    • P(c);::QAB1(C),XP(c)
    • P(d);N_GUARD::B(B)
  • Tries
    • Try
      • S(I);
      • Threat
        • S(I)
      • Vars
        • S(e);CHECK,OGATE,XP(F)::R1(E),XS(e)
        • P(d);OGATE,XS(I)::B(B),XP(d)
      • Refutation
        • P(c);
    • Try
      • B(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(e);CHECK,OGATE,XP(F)::R1(E),XS(e)
        • P(c);::QAB1(C),XP(c)
      • Refutation
        • S(e);
    • Try
      • B(B);
      • Threat
        • QAB1(C)
      • Vars
        • S(e);CHECK,OGATE,XP(F)::R1(E),XS(e)
        • P(c);::QAB1(C),XP(c)
      • Refutation
        • S(f);
    • Try
      • R(E);
      • Threat
        • QAB1(C)
      • Vars
        • S(e);CHECK,OGATE,XP(F)::R1(E),XS(e)
        • P(c);::QAB1(C),XP(c)
      • Refutation
        • S(e);
  • Actual
    • S(I);
    • Threat
      • R1(H),XP(c)
    • Vars
      • S(e);CHECK,OGATE,XP(F)::R1(E),XS(e)
      • P(c);::QAB1(C),XP(c)
      • S(e);N_GUARD::S(I)
      • S(f);N_GUARD::S(I)
      • P(d);N_GUARD::B(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).