var extexts = new Array(
"8/1P6/k7/8/1K6/8/8/8 w - - 0 1_49-57-R{b8T}",
"8/8/1B6/8/pk6/nb6/8/1KQ5 w - - 0 1{%HGurgenidze 1986}_2-16{Dxa3+}_25-16{Kxa3}_41-34{Lc5#}",
"6R1/5p2/6pk/4R3/5K2/8/8/6q1 w - - 0 1{%HRusinek 1986}_36-39{Th5+}_47-39{Kxh5}_s46-39{gxh5}_e62-6{Txg1}_62-63{Th8#}",
"k7/2B5/KP5q/4b3/8/8/8/2R5 w - - 0 1{%HMakletsov 1986}_50-43{Ld6}_47-43{Dxd6}_s36-43{Lxd6}_41-49{b7+}_56-57{Kb8}_e2-58{Tc8#}_2-58{Tc8+}_43-57{Db8}_41-49{b7#}",
"3Q4/1p3ppk/p5rp/8/5N2/P1P1nP1P/3R2PK/5q2 b - - 0 1{%HVukovic-Plater<br>Krynica 1956}_5-4{De1}_11-12{Te2}_4-22{Dg3+}_15-6{Kg1}_22-29{Dxf4}",
"2r5/2r5/3R1bk1/5q1p/1p2QPnP/1P6/PB6/1K1R4 w - - 0 1_43-45{Txf6+}_30-45{Pxf6}_3-6{Tg1+}_45-30{Pg4}_6-30{Txg4+}_39-30{hxg4}_31-39{h5+}",
"3R4/5p1k/4pnpp/1N6/P1r5/1Q3PP1/1PP3PK/4q3 b - - 0 1_26-30{Tg4}_21-30{fxg4}_45-30{Pxg4+}_15-23{Kh3}_30-13{Pf2+}_23-15{Kh2}_4-7{Dh1#}",
"8/r1p5/8/2Np4/p5pp/7k/5K1P/R7 w - - 0 1{%HHolm 1917}_0-7{Th1}_50-42{c6}_s30-22{g3+}_15-22{hxg3+}_23-30{Kg4}_7-31{Txh4+}_30-37{Kf5}_e31-24{Txa4}_s48-56{Ta8}_34-44{Pe6}_30-22{g3+}_15-22{hxg3+}_23-30{Kg4}_7-31{Txh4+}_30-37{Kf5}_44-50{Pxc7}_56-32{Ta5}_e50-35{Pxd5}_34-44{Pe6}_48-53{Tf7+}_13-6{Kg1}_53-37{Tf5}_44-29{Pf4+}_37-29{Txf4}{&frac12}"
);