MESON Chess Problem Database

Problem Display
PID: 254879 (KB1R4/pNN4p/4P2Q/R6B/3pkP1b/1Pp1r1pp/2bp1P2/r4n1q w - - 0 1)

Murashev, Pavel Aleksandrovich

idee & form, 2017

KB1R4/pNN4p/4P2Q/R6B/3pkP1b/1Pp1r1pp/2bp1P2/r4n1q

#2

12 + 14

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Sd6#
      • 2.Re5#
    • 1...Bd3
      • 2.Sd6#
      • 2.Re5#
    • 1...d3
      • 2.Re5#
  • Tries
    • 1.Sb5?
      • threat
        • 2.Qxh7#
      • 1...Kd3
        • 2.Rxd4#
      • 1...Kf5
        • 2.Sd6#
      • 1...Bxd8!
    • 1.Sa6?
      • threat
        • 2.Qxh7#
      • 1...Kd3
        • 2.Sc5#
      • 1...Rxa5!
    • 1.Qf6?
      • threat
        • 2.Sc5#
        • 2.Rxd4#
        • 2.Qxd4#
        • 2.Qf5#
      • 1...Kd3
        • 2.Rxd4#
        • 2.Qxd4#
      • 1...Rxa5
        • 2.Rxd4#
      • 1...d1Q
        • 2.Sc5#
        • 2.Qf5#
      • 1...d1R
        • 2.Sc5#
        • 2.Qf5#
      • 1...Ra4
        • 2.Sc5#
        • 2.Qf5#
      • 1...Rd3
        • 2.Sc5#
        • 2.Sd6#
        • 2.Re5#
        • 2.Qe5#
        • 2.Qf5#
      • 1...d3
        • 2.Sc5#
        • 2.Sd6#
        • 2.Re5#
        • 2.Rd4#
        • 2.Qd4#
        • 2.Qe5#
        • 2.Qf5#
      • 1...Bxf6!
    • 1.Qg6+?
      • 1...Kxf4
        • 2.Sd5#
        • 2.Qg4#
      • 1...hxg6!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Qxh7#
      • 1...Kd3
        • 2.Sc5#
      • 1...Kf5
        • 2.Sd6#
      • 1...d3
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(j);::R1(D)
  • Tries
    • Try
      • S(I);
      • Threat
        • QAB(G),XP(n)
      • Vars
        • K(k);N_GUARD,P_PINS(H),P_SPINP(j),S_FLIGHT::R1(L),XP(j)
        • K(k);N_GUARD,P_PINS(H),S_FLIGHT::R(D)+S(I),DCHECK
      • Refutation
        • B(l);XR(L)
    • Try
      • S(I);
      • Threat
        • QAB(G),XP(n)
      • Vars
        • K(k);N_GUARD,P_PINS(H),P_SPINP(j),S_FLIGHT::S(I)
      • Refutation
        • R(a);XR(D)
    • Try
      • Q(G);
      • Threat
        • DUALS(4)
      • Vars
        • R(a);XR(D)::R1(L),XP(j)
      • Refutation
        • B(l);XQ(G)
    • Try
      • Q(G);CHECK
      • Refutation
        • P(n);XQ(G)
  • Actual
    • S(I);
    • Threat
      • QAB(G),XP(n)
    • Vars
      • K(k);N_GUARD,S_FLIGHT::S(H)
      • P(j);N_GUARD,S_CUTR(g)::S(I),XP(f)
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).