實戰詰棋黑先追四勝013

[ythung (費瑪連珠)]

實戰詰棋黑先追四勝013  ORC virag 出題

     A B C D E F G H I J K L M N O
 15 ┌┬┬┬┬┬┬○┬┬┬┬┬┬┐ 
 14 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┤ 
 13 ├┼┼┼┼┼┼○┼┼┼┼┼┼┤ 
 12 ├┼┼┼●┼┼●●○┼┼┼┼┤ 
 11 ├┼┼●○●●○┼┼┼┼┼┼┤ 
 10 ├┼┼┼●○○┼●●┼┼┼┼┤ 
  9 ├┼┼┼┼┼●○○○●┼┼┼┤ 
  8 ├┼┼┼○○┼●●○┼○┼┼┤ 
  7 ├┼┼●┼┼┼●○┼○┼┼┼┤ 
  6 ├┼┼┼┼┼●┼○●┼●┼┼┤ 
  5 ├┼┼┼┼○┼┼┼┼┼┼┼┼┤ 
  4 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┤ 
  3 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┤ 
  2 ├┼┼┼┼┼┼┼┼┼┼┼┼┼┤ 
  1 └┴┴┴┴┴┴┴┴┴┴┴┴┴┘ 

[ 1]● ==> H8   [ 2]○ ==> H9   [ 3]● ==> J10  [ 4]○ ==> I9   [ 5]● ==> I10
[ 6]○ ==> J8   [ 7]● ==> G9   [ 8]○ ==> G10  [ 9]● ==> I8   [10]○ ==> I7
[11]● ==> K9   [12]○ ==> K7   [13]● ==> L6   [14]○ ==> L8   [15]● ==> J6
[16]○ ==> I6   [17]● ==> H7   [18]○ ==> F8   [19]● ==> G11  [20]○ ==> F10
[21]● ==> F11  [22]○ ==> H11  [23]● ==> I12  [24]○ ==> H13  [25]● ==> H12
[26]○ ==> J12  [27]● ==> G6   [28]○ ==> J9   [29]● ==> E10  [30]○ ==> E8
[31]● ==> D7   [32]○ ==> F5   [33]● ==> D11  [34]○ ==> E11  [35]● ==> E12
[36]○ ==> H15

好題目得之不易
請試著用眼睛看出正解

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推 antfred:還好沒退步很多...( ′3`)y-～