"Have a nice game!"
"Good luck!" "Black time counting begin!" Tap! "White time counting begin!"
Many moves and hours later there is nothing left to play, only this one corner. The game is extremely close, but you are in byoyomi and cannot count the score exactly. The only thing you have is your hope... and your skills.
Every point you lose now will decrease rapidly your chances to win. The last position to solve and then you will take a rest. You draw a deep breath and put the critical stone on the board...
(;AB[rb]AB[rc]AB[qb]AB[qd]AB[pc]AB[oc]AB[nc]AB[mc]AB[qe]AB[sc]AW[sd]AW[rd]AW[re]AW[rf]AW[qf]AW[pf]AW[of]AW[pd]AW[od]AW[ne]AW[me]AW[le]AW[ld]AW[lc]AW[lb]AW[mb]AW[sb]AW[pa]C[Black to play the best endgame. Sente is not important here. No ko is on the board. Only this and pass you have to do to see the result of the game...]AW[kb]AW[oe]AP[goproblems]
(;B[qa];W[oa];B[sa]C[Yes! You say pass and count the score with a feeling that you did nothing wrong in the endgame!RIGHT])
(;B[pb];W[oa]C[One point lost before. No need to continue.. You are alive, but you feet that the one point loss will cost you the victory...])
(;B[sa]C[You gived white one bonus prisoner. Do not do the unnecessary sacrifices in your games and your strenght will grow!])))
(;B[oa];W[ob];B[sa];W[pb]C[Black lives, but white gets too many points. The game is lost.])
(;B[ob];W[oa];B[sa]C[White gets one bonus point. You are unhappy and hope it will not affect the result...]))
(;B[ob];W[oa]C[You are dead now and you promise yourself you will study some tsume go.])
(;B[sa];W[qa]C[You got dead. After a long time of hard trying...])
(;B[na];W[nb]C[Black is dead now. Tears appear on your face and you resign.])
(;B[qa];W[nb];B[sa];W[pb]C[You are alive, but the endgame moves were horrible :o( You lost your game!])
(;B[sa]C[Very nice life, but one bonus point for white... Remember the last game you lost by half a point? You just hope this will not be the case, pass and count the score...])
(;B[ma];W[la]C[Your opponent smiles to your last move. And you also lost a point before. Your chances to win are minimal..]))
(;B[pb];W[nb]C[BlackÂ´s dead now.. not very good end of the game.]))
(;B[pb];W[oa]C[Your opponent smiles. You are dead now and the result is not good for you.])
(;B[ra]C[Only way to kill yourself in gote.. Congratulations, you found it. But itÂ´s a bit impractical :o(]))