>“You can paint a single sea creature of your choice on each of these canvases, with one condition. I would like to see a picture of an eel when I move my gaze

>“You can paint a single sea creature of your choice on each of these canvases, with one condition. I would like to see a picture of an eel when I move my gaze vertically or horizontally. So there must be at least one eel in the vertical column and at least one in the horizontal row.” It does not mention each canvas must be a unique sea creature - merely that it must be single (one sea creature per canvas). I'd paint an eel on every single canvas, out of laziness. Introducing a bet to not paint in the corner means I would paint on 5 canvases, not including the corner piece. This changes what I am predicting though by skewing my decision. It's asking a completely different question. As catbird pointed out, this is like asking the probability of flipping a coin. Then asking what if you knew the coin was biased to always land on heads and you placed a bet with a friend about the result being heads or tails, what would you vote? The probability is 1 in 6. Their are 6 canvases and only a single corner piece. When introducing the bet, do we assume you want to win $2 over paying $1 100% of the time? If so the probability turns from 1/6 to 0/6 - as the artist, in their best interest, would never paint an eel in the corner. The probabilities of 1/4 and 1/3 are asking different questions. It's no longer asking if the piece is a corner piece but whether it is at a specific end of a row or column. It's extremely naive because it doesn't say which end of the row or column forms the L with the column or row. Therefore both ends are valid and it would be 2/4 and 2/3 because the eel could be at either end and still form an L. So it's 0/1, 1/6, 1/3, 1/4, 2/4, and 2/3 depending on the actual question being asked.