Richards said:
My sons and I play chess and a whole slew of chess-based variants, some of which entailed building our own boards (and sometimes the pieces as well).
Transfer Chess can be a lot of fun - four players, two boards, each player partners with the opposite colour on the other board.
When you capture a piece, you hand it to your partner; in place of a move, they can introduce a captured piece to the board.
There was one we came up with in High School - I can't remember what we named it, now! The idea was that any time you capture a piece, all of your pieces with the face value of the capturing piece take on the aspect of the captured piece. So if your knight captures a rook, all of your knights now behave as rooks. If your queen captures a pawn, she now moves as a pawn.
The game tends to involve a lot of maneuvering to try to capture a back-row piece with a pawn
Monster Chess is interesting. Black has a normal allotment of pieces. White has eight pawns and The Monster. The Monster moves as both a queen and a knight, as desired. White wins by checkmate; Black wins by capturing all of White's pawns. Losing The Monster is not immediately fatal, but it makes White's job a hell of a lot harder! (White can promote pawns as normal.)
Then there are a couple that are fun for kids - Scotch chess, where each successive player takes one extra move (so White moves once, Black moves twice, White moves three times, etc) - any time Check is declared, the opposing player gets one free move to escape, before the current player's turn continues. And Machine Gun chess, where the King dies like any other piece; each time a piece is moved, any piece it
could capture next turn from its new position is removed from the board.
-Hyp.