Wbridge5 is a prominent bridge program. Wbridge5 has been world champion of the bridge programs in 2005, 2007, 2008, 2015, and 2016. Besides excellent playing, this program also employs a dedicated bidding system. I dream of human pairs using a bidding system like Wbridge5, so I collate the bidding system in this book. I have also done a collation in Full Disclosure format.

The topic of this book is mainly bidding because playing is somewhat universal. Playing depends not on how to bid but on meaning of every call. There are so many experts and books for playing that writing one more book is infeasible for me.

Wbridge5 has a 2/1 bidding system with French flavors, as it originates from France. Some French conventions greatly improves bidding structure from the American, so Wbridge5 incorporates them. Others not so profitable are not included in Wbridge5.

Read & write

This book is publicated on GitBook. The source code is hosted on GitHub. Feel free to share or improve this book.


This book is free software. The content is released under CC BY-SA 4.0. The source code is released under GPLv3+.

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