Three Mistakes in Go  “Go (Chinese: 圍棋 wéiqí, Japanese: 囲碁 igo,
[nb 2] Korean: 바둑 baduk, Vietnamese: cờ vây, common meaning:
“encircling game”) is a board game for two players that
originated in China more than 2,500 years ago.” — From the
Wikipedia Article  I love this game. It keeps me humble. No
other game teaches so much so simply. Go is about influence. But
sometimes, it is about tactics. I recently lost a game. I made
not 1, but 3 mistakes, that cost me the game. If I had not made
any one of these three I would have won, and quite soundly.
Instead, I lost by 1.5 points, a very close game.   Here is the
state of the board before my first mistake. The plus sign
indicates the last move made.  My opponent and I are battling
for the middle of the board.  I thought the stone at G 10 was
enough to keep the group of three stones to its right alive.  So
I got arrogant.  The very fact that he continued to attack
should have been a warning.  Here is mistake number 1.  I played
K12 and:  And here is the end state: