var extexts = new Array(
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"6k1/pb3pp1/1p5p/8/4n3/1Q1N3P/PP1r2P1/7K b - - 0 1_28-22{Ng3+}_7-15{Kh2}_11-14{Rxg2#}",
"3r2k1/pp2qpp1/1np1pn1p/6B1/2P1PP2/1P3N2/P3Q1PP/5R1K w - - 0 1_38-31{Bh4}",
"1KB5/8/4N3/Pk6/8/2B4P/8/5qb1 w - - 0 1{%HKivi 1963}_58-40{Ba6+}_33-40{Kxa6}_44-50{Nc7#}",
"r1b1kb1r/ppp2n1p/2npp3/5q2/2PP4/2N2N2/PP3PPP/R1BQR1K1 w kq - 0 1_18-35{Nd5}_60-59{Kd8}_21-31{Nh4}",
"6N1/6K1/8/5k2/8/1P2pPP1/8/8 w - - 0 1{%HKralin 2003}_62-52{Ne7+}_37-38{Kg5}_52-35{Nd5!}_s52-42{Nc6?}_20-12{e2}_21-29{f4+}_38-30{Kg4}_42-36{Ne5+}_30-22{Kxg3}_36-19{Nd3}_e22-21{Kf3}_20-12{e2}_35-20{Ne3}_s21-29{f4+}_38-30{Kg4}_35-20{Ne3+}_30-22{Kxg3}_20-10{Nc2}_e22-29{Kxf4=}_12-4-Q{e1Q}_21-29{f4+}_38-39{Kh5}_22-30{g4+}_39-31{Kh4}_20-14{Ng2+}",
"k7/b1p2B2/8/1K1P1n2/7p/8/6N1/8 w - - 0 1{%HBron 1964}_14-31{Nxh4}_37-31{Nxh4}_33-42{Kc6}_48-57{Bb8}_35-43{d6}_50-43{cxd6}_53-35{Bd5}_56-48{Ka7}_35-28{Be4}_48-40{Ka6}_28-19{Bd3+}_40-48{Ka7}_19-28{Be4}",
"2r1b3/pp2kp1p/1n2p3/2q5/2PNr3/1B4Q1/P5PP/3R1R1K w - - 0 1_5-37{Rf5!}_44-37{exf5}_s34-43{Qd6}_37-53{Rxf7+}_60-53{Bxf7}_e27-37{Nf5+}_27-37{Nxf5+}_52-45{Kf6}_s34-37{Qxf5}_e22-43{Qd6#}_3-43{Rd6+}_45-37{Kxf5}_22-21{Qf3+}_s22-23{Qh3+}_37-36{Ke5}_43-3{Rd1}_e34-13{Qf2}_28-29{Rf4}_s37-38{Kg5}_21-45{Qf6+}_38-30{Kg4}_e17-3{Bd1+}_21-39{Qh5+}_37-28{Ke4}_17-10{Bc2+}_28-20{Ke3}_43-19{Rd3+}"
);