Thanks - fixed it now.
I'm not quite sure how that happened ?
Still: that's what you get for not testing

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π = 4
Consider a 5' radius blast: this affects 4 squares which have a circumference of 40' — Actually it's worse than that.
Completely Dysfunctional Handbook
Tomb of Battle: Fighter, Monk, Samurai, Blade Dancer, Knight, Swashbuckler and Ninja.