The Game
Rainbow is a clever card game from Japan by Mito Sazuki. What’s most special about it is that cards which you play in one round to compete for prizes in turn become the prizes in the following round. If you play powerful (i.e. high) cards to win lucrative prizes in the current round, beware they themselves will become lucrative prizes next round. Do you still have strong cards to compete for them next round? Are you offering too-good prizes to your opponents?
Cards in the game are numbered 1 to 6. At the start of the game, most cards are dealt out to all players. The same number of cards as the player count are laid out at the centre of the table to become the prize pool. Every round, you play cards to fight for these prizes. The most powerful combo gets the highest prize, the second most powerful gets the next highest, and so on. There are only two types of combos, sets and runs. A set means multiple cards of the same value. A run means cards in sequence. You can play singles too. A single is both a set and a run, albeit with just one card. The start player of a round determines the combo type. If a single is played then it can still be any combo. The type is not committed yet. Once anyone plays a set or run with at least two cards, subsequent card plays must be of the same type (or singles). The strength of a combo is first determined by the number of cards and then by the card value.
You must play a combo, even if it is weak. At least you must play a single. Once everyone has played, you start claiming prizes beginning with the player who played the strongest combo. After prizes have been claimed, cards played in the current turn are grouped by their values and in pairs if possible. You try to form pairs of 6’s, pairs of 5’s, pairs of 4’s and eventually you’ll have singles. These become the prizes for the next round. This means a prize can be worth up to 12 points (two 6’s). There will only be as many prizes as there are players. If you have too many prizes you simply discard them. The prizes you win don’t go to your hand. They go to your prize pile.
The game goes on until at least 2 players have used up their cards. If you are first to run out of cards, you sit out until the game ends. The rest continue to play until the end condition is reached and they continue to score points till then.
The Play
This is a game about winning the most points with the least effort. You don’t always need to “win” a round, as in playing the strongest combo. If the values of the prizes are about the same, it is probably better to conserve your resources. You need to do a little bit of planning. If you have many high cards, make sure you win some of them and they don’t all become your opponents’ prizes. The game end dynamic is also interesting. You need to think carefully when to use up your cards. Being first to go out and having to sit out for many rounds while others continue to play and score will be disastrous. When you are the player who can trigger game end, if you feel you are leading you’d want to end the game immediately and not let others have more scoring opportunities.
One thing we tried to do in our game was to stay in play for as long as we could. That meant trying not to play big combos so that our cards lasted longer. We tried to make many small wins. We played the efficiency game. Sigh, these serious gamers are boring people. Where’s the drama? I realise small cards can be good too. If you use four 1’s to win a big prize, you are only making at most two sets of 2 points for the next round. The only drawback is playing four cards means depleting your hand faster.
The Thoughts
Rainbow is a smart design. Certainly something a little different. It is short and quick, but not exactly a casual / silly type of game. There is some strategy to playing well. You need to respond to how your opponents play. Casual gamers can still handle this. Experienced gamers will find this an interesting challenge too. Despite the cute art, there is a certain seriousness to this game. This is essentially an abstract card game. At least I don’t get the unicorn theme at all. And I don’t mind that.