List of all stable-state goals achieved in 20 moves or less from the Y-start on a 7x7 grid. Produced by a Delphi search program developed by Jacco Compier. The list includes the length of solution (in clicks) and final cell-count. SS< 3 7 SS/D\//\///D\//\<\D\RS 19 9 SS/D\//\<\D/D\//\>/\SL>> 20 13 SS/D\//DL<\/SUD 20 9 SS/D\//DL/D\//DLDUS//D\//DLDUS\>\ 20 18 SS/D\//LLDSSSSS 20 9 SS/D\/L/>/D\/R\/D>S\\S 20 13 SS/D\/R\LD/D\/R\LD/D\/SLRUUS\> 19 10 SS/D\/SSR\>>S\> 20 13 SS/D\R/\/DRSUU/ 20 10 SS/D\R/\/DRSUUS 20 10 SS/D\R/\\U/D\R/\\U/D\R/\\UR>>L 19 7 SS/D\R/\\URSRD 19 10 SS/D\R//D\R\>\SS\ 17 6 SS/D\RLR\/D\RLSU\>\>U 19 10 SS/D\RLU<>S\/LR 20 13 SS/D\RLU<>S\/D\RLU 20 8 SS/D\RLUDDU/D\RLUDDU/D\RUD/S<>/SL 20 15 SS/D\RUD/SR/\\\ 20 11 SS/D\RUD/SR/LLR 20 12 SS/D\RURU//D\RUS/R/S\DL 20 10 SS/D\RUU/DR\/SU 20 13 SS/D\RUU\U 20 16 SS/D\S/LSLSS 17 14 SS/D\SDR\R/DS\L 20 12 SS/D\SDSSSSL 17 12 SS/D\SDSSUU\S/D\SDSSUUD 17 11 SS/D\SS//S/\ 20 12 SS/D\SS//SD 16 8 SS/D\SS/LDRS/D\SS/LSRSDL 19 10 SS/D\SS/D\SS/D\SSURS/\RRD 20 12 SS/D\SSUUSSS/ 18 14 SS/DUL\>\DSURDU 20 11 SS/DUL\>\DSURLS 20 9 SS/DUL\>DSUD\US 20 9 SS/DUL\>DSUDS 18 11 SS/DUL\>DSUDU\ 19 10 SS/DULU//DULUUD>>//S\ 20 8 SS/DUSLRL\/</DUSLRSS/USDS 20 13 SS/DUSLRSS\R/> 19 8 SS/DUSLSDSURSSS 20 14 SS/DUSLSUSD\>L\ 20 14 SS/DUSLSUSDUS 18 11 SS/DUSUD\>L>S/> 20 10 SS/DUSUD\DRU<\ 19 8 SS/DUSUU\>\SDU 19 7 SS/DUSUU\UDD<< 19 9 SS/DUSUUD 14 7 SS/LRSUR/L 15 7 SS/LRUS/LRUSS/SL>R/< 20 9 SSU//LS\DU//LS\DU//LS\DSU 20 9 SSU//LS\DSU/<>\\R 14 7 SSU/<>\>RRULRSS 20 10 SSU/<>ULUSU/U/U/U/>R\>\SSD 20 10 SSU/>R\>\SU/>RUDU/>RULL\/S<\R 20 10 SSU/>RUSL\>RDSD 20 8 SSU/L///<\D>SRU 20 10 SSU/L///
U/L///U/L///U/L///>D<\L 18 7 SSU/L///>DL\S 18 8 SSU/L///D>L\SSS 20 11 SSU/L///D>S< 17 8 SSU/L//LS>//S 18 12 SSU/L//LS>U/L/R<>RL/S/< 20 9 SSU/L/R<>RL/SL 19 9 SSU/L/R/U/L/RSU/L/RS>U/L/RSRUU/L/RSRUU/L/RSU 20 11 SSU/LU/\U/D 20 20 SSU/L/S 20 14 SSU/L>L 20 14 SSU/LU/LU/L\SSS 18 17 SSU/LU/LUSD\S>URS 19 9 SSU/LUSDSD>/D/< 20 12 SSU/LUSDSD>/D/S 20 10 SSU/LUSDSR\/SS 19 8 SSU/LUSDSR\/UL 19 9 SSU/LUSDU>R/SU 19 15 SSU/LUSR/LD>R>D 20 8 SSU/LUSRLR>R 20 11 SSU/LUSRLR>S 20 11 SSU/LUSRLRU 19 10 SSU/S/SD<\SRS>U 20 10 SSU/S/SDLLSUR/R 20 9 SSU/SU/U/SU/U/SU/LRU 19 8 SSU/SU><< 20 8 SSU/SU>U/SU>U/SU>L>ULS>UU 20 11 SSU/SUDR/SS 19 8 SSU/SUDRSSUD/LR 20 8 SSU/SUDS\UUSRRL 20 11 SSU/SUDULUDU/SURDS 19 9 SSU/SURDSUS>UD 19 6 SSU/SURS>\S 16 14 SSU/SURSDRL< 17 8 SSU/SURSRL>\>U 19 10 SSU/SURSRL>\D 18 9 SSU/SURSURLLS 18 8 SSUU>\<UU>\<UUU/>S/ 19 13 SSUURL>\\>LS>SUR 20 9 SSURL>\\>LUSSRS 20 13 SSURL>\\>S/<\U 19 11 SSURS\\US 14 10 SSURS\>\/\URS\>\/>URS\>>USL/S/L 20 13 SSURS\>URUS//L\ 20 12 SSURS\>US/>LS 18 11 SSURS\>UU\>\/\S 20 10 SSURS\L/\DSURS\L/\DSURS\L/UURS\L/U>UUUSS 20 12 SSURS\L/US>>D\ 19 14 SSURS\LS/R\LD 18 12 SSURS\LS/R\LS< 19 13 SSURS\LSURS\LSURS\LSURS\LSR\S>LUD 20 11 SSURS\LSRSUDD>\ 20 10 SSURS\R\/URS\RL>\/LURS\RU>SSS/\> 20 12 SSURS\RUSSDU/URS\RUSSDUDD/ 20 14 SSURS\SLURSDU>\S/\SDU 20 9 SSURSR/D 13 5 SSURSRDS 13 4 SSURSRSR 13 5 SSURU\>USD\LR 18 8 SSURU>\URU>\URU>\URU>\/D\L 20 13 SSURU>\URUL\>D/SS\SS 20 11 SSURUL\>S>UUUR 19 21 SSURULL\>RLS>U 19 8 SSUS/\\>>U>>RS\ 20 10 SSUS/\\>>U>RDR 19 12 SSUS/\\>>U>RUD/ 20 11 SSUS/\\>>U>RUDS 20 9 SSUS/\\>>U>RUDU 20 11 SSUS/\\>SR>SS 18 12 SSUS/\R<US/\RR\D\/DL< 20 10 SSUS/\RR<>RSSU 19 10 SSUS/\S/US/\S/US/\S/US/\S/<\DSSSL 20 19 SSUS/\SUS/\S>LSSD 17 7 SSUS/\S>RLS<\SS 20 10 SSUS/\SLSUS>SS< 20 10 SSUS/\SLSUS>U< 19 11 SSUS/\SR\S/\D/D 20 13 SSUS/\SR\SL/SL 19 12 SSUS/\SR\SLLSUR 20 12 SSUS/\SRDRLUSD 19 13 SSUS/\SRL\SDLS 19 12 SSUS/RLRRSS 16 8 SSUS/RLRSU 15 8 SSUS/RLSSU 15 8 SSUS/RS\DUS><< 19 11 SSUS/RS>/S\LL> 19 14 SSUS/RULUDUS/RULUDUS/S/>SS\DL 18 9 SSUS/S/>SSUUS/S/>U 19 8 SSUS/SS>S\R\LS 19 11 SSUS/SUUD<US/SUUD<US/SUUURL\D 18 10 SSUS/SUUURL\S 18 10 SSUS/SUUURLLD 18 12 SSUS/SUUURU<< 18 11 SSUS/SUUUS/RUS/SUUUS/RRS 19 13 SSUS/U/L<\S>R\ 19 14 SSUS/U/LUS/U/LU>U 16 8 SSUS\/US\/US\/US\/ 15 11 SSUS\/US\/<\SS>US\/<\SS>SUDU 20 10 SSUS\/<\SS>US\ 19 10 SSUS\/<\SS>USSD 20 10 SSUS\/>/\S>/L 18 9 SSUS\/>/\S>/SD 19 10 SSUS\/>/\S>UDL/ 20 10 SSUS\/>\/\>/ 20 12 SSUS\/>DSDSSS 18 7 SSUS\/>DSL< 16 9 SSUS\/>DSLS\RR 19 9 SSUS\/>DSU<>SR 19 8 SSUS\/>S/SUS\/>S/SLUS\/>SSUU< 20 15 SSUS\/LDUSSS>\L 20 10 SSUS\/LLSSSSS 18 11 SSUS\/LR 19 16 SSUS\/RR\S\/ 20 9 SSUS\/RR>U/L<>/ 20 12 SSUS\/RSSSUS\/RSUDDU>SS 20 11 SSUS>/US>/UD\US>/UD\R 15 4 SSUS>\\LU/SUS>\DR\R\>R 18 10 SSUS>\DR\RDU< 18 10 SSUS>\DRL/RLUSL/UL< 20 10 SSRSSLLD/UU 20 10 SSRSSS/<\UD 20 9 SSS\R\><\DR 20 9 SS 20 11 SSRS 18 8 SSSSS\>U\ 19 14 SSSUURSUURD 17 11 SSL 20 9 SS///LDU///LDUS><< 20 10 SS///LDUS>///S///SSS 16 9 SS///SSS<> 18 10 SS//S\R>SLL 19 13 SS//S\RLRDLS 20 9 SS//S\RLRDS/ 20 10 SS//S\RLRDS> 20 10 SS//SU\>SD> 19 11 SS\U/D 19 13 SS\U/ 18 9 SS\U>/\R>S 18 9 SSSS/RSDLS\> 20 10 SSSSS/DU\/UU>>\ 20 9 SS/UU>>S 20 9 SS/UU>SD 20 11 SS/UUDUS 20 11 SSLSLSS>/ 20 11 SS/R/RRS 16 6 SS/S 17 11 SS 19 11 SSU\> 20 11 SSU\SD\S 20 9 SSDD/D/\U 20 15 SSRRU><>/DU 20 11 SSDDDU>\ 19 11 SSDDU>UR 20 12 SSDRR<>/ 20 10 SSR\\D>D 18 11 SSR\LLS>L 19 11 SSR\RS\DR\RUUS/S/R\URSD 20 9 SSS/R\USS 19 8 SSS/RUSRLR 20 9 SSSULRLDU< 20 18 SS>R 20 9 SS>DSU 20 9 SSS 18 9 SS/< 17 10 SSU/SD 19 8 SSUD/\ 19 11 SSUDSS 19 8 SSUS 17 9 SS//LRL 20 8 SSSU 20 9 SSURRSL 18 8 SSS 19 8 SS 20 10 SS\R 19 12 SS/S/S/S/S/S/S 18 9 SSUD\/UR/SL 20 11 SSUDU/>/< 18 12 SSUDUURUD\/ 20 10 SSUDUUUDD 18 9 SSRS<<< 20 16 SS\SRDSL 20 11 SS\SRLS 19 12 SS>S 20 12 SS> 18 10 SS\/\D 18 9 SS>US\SL 20 9 SS>S\U 20 8 SS>\SSR\ 14 6 SS>\SSRR 14 7 SS>\SSRSU 15 5 SS>SUS/D/>SUS>S 14 8 SS>SUSS>SS 16 7 SS>U\>\/LRR< 18 7 SS>U\R/L>USDSU 20 12 SS>U\RR/> 15 8 SS>U\RR<> 15 8 SS>U\RSU>LSRSL 20 12 SS>U>\\>\UR/D 19 11 SS>U>\\S\>DSS 19 14 SSLRLR 13 6 SSLSR/SD 14 6 SSLSSR\SSSSR>SS 13 6 SSSR>SSU 14 6 SSLS 20 12 SS>UD 20 9 SS\SDRS 20 12 SS/\/D 17 8 SS/\>S 17 8 SS/S/SUD 19 8 SSDSS 18 10 SS/S 18 10 SS>S 18 10 SS\UU>U 20 12 SS\UUR 19 16 SSU 19 11 SS>DUSD\ 18 10 SSRURURUL< 20 13 SSRUS 19 11 SSRURUS>U\ 18 10 SSRUSR\RUSRSS\> 20 9 SSSLSRR< 18 9 SSSU/SU/SU/ 20 12 SS\D 20 12 SS>\SD>S 20 10 SS>\SDSU 20 10 SS 20 12 SSSL 20 10 SSSLR>/ 20 13 SS/LRS 19 9 SSSRD>S 19 9 SSSS 20 16 SS 19 13 SSLDS/S 20 10 SS\ 19 9 SSL 20 10 SS\/SLL 20 12 SSU 20 12 SS>DS/SSDSS 19 9 SS>R\LS 19 10 SS>R\ULR/\\< 20 8 SS>R\ULR/\D 19 8 SS>RDS\S// 18 15 SS>RDSU\U<> 19 9 SS>RDSU\U>RDSU\UUS 19 12 SS>DS\R 19 12 SS>DS\S> 20 13 SS>DSL 18 11 SS 20 8 SS<\>/L 19 10 SS\ 18 7 SSRSD< 18 10 SS>L 20 10 SS>\< 18 9 SSURUUS/L/ 19 9 SSUUS/LD 19 9 SS 20 13 SSUD 20 11 SSR< 20 10 SS\R\ 20 12 SSLS/UURS 20 12 SSLS\S>U> 20 13 SS/< 20 8 SSSS 16 6 SS>/LS 16 15 SS>R\SL 17 16 SSL/LDUU/>LDUUR< 18 9 SSLDUUSR/S 20 14 SSS/S/<SS\ 18 8 SS>US 20 13 USS\ 4 7 USS\D\UD/S>>RUL\ 16 7 USS\D\UD/S>>U> 14 7 USS\D\UD/S>DSSD/DU 18 7 USS\D\UD/S>DU>>\RSS\S 21 12 USS\D\UD/S>DU>RL/L 18 7 USS\D\UD/S>R\SD>SS/L 20 9 USS\D\UD/S>R\SD>SS\S 20 9 USS\D\UD/S>RR\SRRSSSRSL>\\>D>R 21 8 USS\D\UDRD//RR/< 21 15 USS\D\UDRDDD/L>LUDR/ 20 10 USS\D\UDRDDD\RLLS 17 8 USS\D\UDRDDD\RLLSR 18 8 USS\D\UDRDDDSS> 20 9 USS\D\UDRDDDS> 20 12 USS\D\UDRDDDLR 16 8 USS\D\UDRDLLR\R>L// 19 8 USS\D\UDRDLLR\R>RD 18 8 USS\D\UDRDLLSR//< 17 12 USS\D\UDRDLLSR//<\\\S>\\\SSS> 19 9 USS\D\UDRDR>\LURLD\LURLD\S//<>U 19 11 USS\D\UDRDR>\S/DD/L 19 9 USS\D\UDRDR>\S/DSR> 19 8 USS\D\UDRDR>\S/S\U>\/DUS 20 12 USS\D\UDRDR>\U>D\U>DUL<\D 21 10 USS\D\UDRDR>USRUSRSD\DRL 21 10 USS\D\UDRDR>USURRDS\LUSR\ 21 13 USS\D\UDRDRD>UL\UL\ 19 10 USS\D\UDRDRD>UL\ULSR 20 10 USS\D\UDRDRD>ULLL>/ 19 14 USS\D\UDRDRD>ULLL>/U 20 14 USS\D\UDRDRD>ULLUDURL 21 11 USS\D\UDRDRD>ULLUUDD 20 10 USS\D\UDRDRD>URRLURRLS/L/ 21 11 USS\D\UDRDRD>URRLSSS 20 9 USS\D\UDRDRD>URRLSUURRLSU> 20 10 USS\D\UDRDRDU/\RS>\RS><SL\\>> 20 17 USS\D\UDRDRDU>SL\SL\D\S 20 9 USS\D\UDRDRDU>SL\LDR 20 11 USS\D\UDRDRDU>SL\LSD\ 21 11 USS\D\UDRDRDU>SL\LSDU 21 11 USS\D\UDRDRDU>SUSDSUSDUSR 21 10 USS\D\UDRDRDUUDRLLS>LS< 20 11 USS\D\UDRDRRU<>\ 21 13 USS\D\UDRDRRU\LD 20 8 USS\D\UDRDRSDUD\><\R\ 21 11 USS\D\UDRDRSDUD\D>S< 21 17 USS\D\UDRDRSDUDU/D\ 19 17 USS\D\UDRDRSDUDU>// 19 11 USS\D\UDRDRSDUDU>/U 19 11 USS\D\UDRDRSDURSS\DDR 21 12 USS\D\UDRDRSDUU/R>L> 21 7 USS\D\UDRDS\SLSSS>LR 20 10 USS\D\UDRS>\SR<\> 21 11 USS\D\UDRS>\SRD>L/SSS 21 11 USS\D\UDRS>>>DU>LD\US 21 9 USS\D\UDRS>>>UUL\LR 19 8 USS\D\UDRS>>>UUL\LSD 20 9 USS\D\UDRS>R\/><>S 18 8 USS\D\UDRS>R<<RSRS<>/>S\D 20 8 USS\D\UDRS>RS<>/>SD\/ 21 11 USS\D\UDRS>RS<>/>SD\> 21 11 USS\D\UDRS>RS<>/>SDU 20 8 USS\D\UDRS>RS<>/USS 19 10 USS\D\UDRS>RS<>DSRU 19 9 USS\D\UDRS>RS<>DU>UD 20 9 USS\D\UDRS>RS<>DUUU/S 21 11 USS\D\UDRS>RS<>S//S 19 10 USS\D\UDRS>RS<>S/>S 19 10 USS\D\UDRS>RSD\DRRURSDDUS 19 12 USS\D\UDRS>RURSSSDS 19 12 USS\D\UDRS>S//><\LSS 20 12 USS\D\UDRS>S//><\R/< 20 12 USS\D\UDRS>S//><\RLS 20 12 USS\D\UDRS>S>R 21 9 USS\D\UDRS>SR\ 20 8 USS\D\UDRS>SR\USSRDLDDSSLR 21 14 USS\D\UDRS>SS>/S<<<< 20 10 USS\D\UDRS>SS>SSUDDU/LU 20 11 USS\D\UDRS>SU\S>LDURR 21 10 USS\D\UDRS>SU\S>LDUS 20 10 USS\D\UDRS>SU\SD<><>U 21 11 USS\D\UDRSLSR\L>RRS 19 8 USS\D\UDRSLSRDL/<\>RS 21 10 USS\D\UDRSLSRDL/<\DUD 21 9 USS\D\UDRSLSRDL/<\RLS 21 10 USS\D\UDRSLSRDL/R<>S/ 21 14 USS\D\UDRSLSRDL/S 17 15 USS\D\UDRSLSRDL\S>< 19 13 USS\D\UDRSLSRDL\S>D 19 13 USS\D\UDRSLSRDL\S>S 19 11 USS\D\UDRSLSRDLSS 17 13 USS\D\UDRSLSRDLSS/ 18 12 USS\D\UDRSLSRDUDUS 18 11 USS\D\UDRSLSRDUDUS/ 19 11 USS\D\UDRSS\> 18 7 USS\D\UDRSS\>LRS/ 17 14 USS\D\UDRSS\>S< 19 10 USS\D\UDRSS\>SD 19 10 USS\D\UDRSS\>SS 19 8 USS\D\UDRSS\>SSRD/ 18 14 USS\D\US\D>\ 21 15 USS\D\USL>DL>DL>DL>DS\D 19 8 USS\D\USRS>SRR\S 21 9 USS\D\USRS>SRSSR 21 11 USS\D\USRURUDU>>DS 21 16 USS\D\USU>\L 17 6 USS\D\USU>\SR 18 6 USS\D\US>\>DDRSS>U>< 20 12 USS\D\US>\>DDRU>SD 18 10 USS\D\US>\>DDS\USDS 19 16 USS\D\US>\>SR>R\DD/DU 21 10 USS\D\US>\>SR>R\DD>SU 21 10 USS\D\US>\>SR>RSSS 18 9 USS\D\US>\>SR>UDRLR 19 11 USS\D\US>\>SRSSR>\>SRSSRLLLS 20 19 USS\D\US>\>SRSSSSLS 19 18