Problem Display
PID: 22145 (3r4/p3N2q/4R3/1QpNb1B1/KP1k1p1R/5p2/1pnp4/8 w - - 0 1)

Arlamowski, Edward

1st Place, Match: Netherlands - Poland, 1937

3r4/p3N2q/4R3/1QpNb1B1/KP1k1p1R/5p2/1pnp4/8

#2

8 + 11


3098 FIDE Album (1914-1944) (I) 1971

SOLUTION


  • SOUND
  • Sets
    • 1...Ke4
      • 2.Rxf4#
    • 1...Bf6
      • 2.Bxf6#
  • Tries
    • 1.Sc6+?
      • 1...Ke4
        • 2.Rxe5#
      • 1...Kxd5!
  • Keys
    • 1.Sxf4!
      • threat
        • 2.Se2#
      • 1...Kc3
        • 2.Qxc5#
      • 1...Ke3
        • 2.Sh3#
      • 1...Ke4
        • 2.Sh5#
      • 1...Qxh4
        • 2.Qd3#
      • 1...Qxe7
        • 2.Qd3#
      • 1...Bxf4
        • 2.Bf6#
      • 1...Qe4
        • 2.Qxc5#
      • 1...c4
        • 2.Qxe5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • K(e);P-FLIGHT,P_SPINB(h)::R1(C),XP(f)
    • B(h);OGATEB::B(F),XB(h)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(e);P-FLIGHT,P_SPINB(h)::R1(G),XB(h)
      • Refutation
        • K(e);N_SPINP(f),P-FLIGHT,P_SPINP(g),XS(E)
  • Actual
    • S(E);XP(f)
    • Threat
      • R(C)+S(E),DCHECK
    • Vars
      • K(e);S_FLIGHT::QAR2(D),XP(g)
      • K(e);P_SPINB(h),S_FLIGHT::B(F)+S(E)
      • K(e);P-FLIGHT,P_SPINB(h)::R(C)+S(E)
      • Q(j);N_GUARD,XR(C)::QAR1(D)
      • Q(j);N_GUARD,XS(H)::QAR1(D)
      • B(h);OGATEB,P_SPINB(h),XS(E)::B(F)
      • Q(j);SBLOCK::QAB1(D),XP(g)
      • P(g);OGATE,SBLOCK::QAB1(D),XB(h)


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).