When creating go problems as sgf files I like to add refutations to incorrect moves. Currently, when I solve the problem later in any program, all variations supplied by me are of course accepted as correct by the program. I wonder if there are any sgf editors out there which allow the user to mark certain variations as incorrect. The goproblems.com interface comes with this feature, but I haven't found it in any sgf editor yet. Your help will be greatly appreciated.

Go Grinder accepts the triangle for wrong variations. In a text editor you can later easily convert the TR[xx] into the WV[] which is also supported in many other go programs. Not sure which one supports the "right" or "correct" / "wrong" comment at the end of a variation but i guess Smartgo is one of those programs which can handle most of the tsumego problems correctly ... and of course it makes also sense to only mark the right solution with a tag as Many Faces does with the TE[2]-tag.

Drago handles the following modes to detect correct or wrong branches:

• uligo mode: wrong variations are marked with a TR (triangle) or WV (wrong variation) property,
• Goproblems mode : correct variations ends with the word RIGHT in comment,
• main line mode: the correct variation is on the main line, all other branches are considered wrong.

By default, Drago detects the mode used in the sgf file, and usually it is not necessary to select it explicitly.

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