1.
Easy Guide to the Hippo Attack & Defence: A Universal Opening System for White & Black
by Briffoz, Eric, EBR Eric Rob...
ISBN: 9781973974420
List Price: $6.90
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The Hippo System: A Universal Opening System for White and Black - Mongredien Edition
by Gary K Gifford, Eric Briffoz
ISBN: 9781796768466
List Price: $28.35
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Adventures in Chess960: Fischer Random Chess - Volume 1
by Eric Briffoz
ISBN: 9781721037582
List Price: $8.99
4.
The HIPPO System: A Universal Chess Opening for White & Black
by Briffoz, Eric, Eric Briffoz
ISBN: 9781983869563
List Price: $13.99
5.
Play The Hippo Attack and Defense: A Universal Chess Opening for White and Black
by Briffoz, Eric, Eric Briffoz
ISBN: 9781975836979
List Price: $9.99