MESON Chess Problem Database

Problem Display
PID: 56841 (8/1pBp4/pN1Rp3/1kn4R/p3p3/r1Q4K/Bn6/3N2b1 w - - 0 1)

Pikhurov, Dimitry Egorovich

Troll, 1994

8/1pBp4/pN1Rp3/1kn4R/p3p3/r1Q4K/Bn6/3N2b1

#2

8 + 11

6114 Problemschach-Jahrbuch (1994) 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Bh2
      • 2.Rxc5#
    • 1...Sxd1
      • 2.Bc4#
    • 1...Sd3
      • 2.Bc4#
    • 1...Sc4
      • 2.Bxc4#
    • 1...e3
      • 2.Rxc5#
      • 2.Qxc5#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Sxa3#
        • 2.Rb6#
      • 1...Rxa2
        • 2.Rb6#
      • 1...Sxc4
        • 2.Bxc4#
      • 1...Rb3
        • 2.Rb6#
      • 1...b6
        • 2.Sxa3#
        • 2.Rxb6#
      • 1...Rxc3+!
    • 1.Sxd7?
      • threat
        • 2.Rb6#
      • 1...Sc4
        • 2.Bxc4#
      • 1...b6
        • 2.Rxb6#
      • 1...Rxc3+!
    • 1.Sa8?
      • threat
        • 2.Rb6#
      • 1...Sc4
        • 2.Bxc4#
      • 1...b6
        • 2.Rxb6#
      • 1...Rxc3+!
    • 1.Sc8?
      • threat
        • 2.Sa7#
        • 2.Rb6#
      • 1...Sc4
        • 2.Sa7#
        • 2.Bxc4#
      • 1...b6
        • 2.Sa7#
        • 2.Rxb6#
      • 1...Rxc3+!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Rb6#
      • 1...Rxc3+
        • 2.S1xc3#
      • 1...Sc4
        • 2.Bxc4#
      • 1...Sb3
        • 2.Qb4#
      • 1...Scd3
        • 2.Qa5#
      • 1...b6
        • 2.Rxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(a);N_GUARD::R1(E),XS(g)
    • S(b);N_GUARD,XS(A)::B(B)
    • S(b);N_GUARD,N_PINQ(C)::B(B)
    • S(b);N_GUARD::B(B),XS(b)
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);N_PINQ(C),XB(B)::R1(G)
        • S(b);OGATE,XS(F)::B(B),XS(b)
        • R(c);::R1(G)
      • Refutation
        • R(c);CHECK,XQ(C)
    • Try
      • S(F);XP(k)
      • Threat
        • R1(G)
      • Vars
        • S(b);N_GUARD::B(B),XS(b)
        • P(j);::R1(G),XP(j)
      • Refutation
        • R(c);CHECK,XQ(C)
    • Try
      • S(F);
      • Threat
        • R1(G)
      • Vars
        • S(b);N_GUARD::B(B),XS(b)
        • P(j);::R1(G),XP(j)
      • Refutation
        • R(c);CHECK,XQ(C)
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Refutation
        • R(c);CHECK,XQ(C)
  • Actual
    • S(F);N_PINS(g)
    • Threat
      • R1(G)
    • Vars
      • R(c);CHECK,XQ(C)::S(A),XR(c)
      • S(b);N_GUARD::B(B),XS(b)
      • S(g);N_PINQ(C)::QAR1(C)
      • P(j);::R1(G),XP(j)
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).