What is Parelli's Squeeze Game and why is it critical before the first ride?

The Squeeze Game is the sixth of Pat Parelli's Seven Games, and it teaches a horse to confidently move through tight or confined spaces between the handler and an obstacle — a fence, a wall, a trailer door, or eventually between the handler's legs from on top. Parelli considers it one of the most critical pre-riding exercises specifically because the act of backing a horse means the horse's brain will perceive the rider as something above and behind it, which is precisely where a predator would attack from. The Squeeze Game addresses this directly. By teaching the horse to move through tight spaces without concern — starting with spaces large enough to be comfortable and progressively narrowing them — Parelli gradually builds the horse's confidence with confinement and with things above and behind it. A horse that has played the Squeeze Game extensively will stand quietly when a rider leans over its back or puts weight in the stirrup, because this new pressure from above pattern-matches to something it has experienced before and found non-threatening. In practical application, Parelli begins the Squeeze Game by sending the horse between himself and a fence at a comfortable distance — perhaps ten feet of space. Once the horse moves through confidently, the space is reduced to eight feet, then six, then four, then two. Each reduction is only made after the horse shows genuine calm at the current distance. Once the horse is completely comfortable being squeezed, the game is transferred to narrow gaps between other obstacles, then to moving under and around the saddle itself. Parelli's specific instruction before the first ride is to play the Squeeze Game with the horse going between the handler and a fence, between two barrels, and through the open trailer door. A horse that is confident on the Squeeze Game has developed the mental flexibility to handle confinement and constriction — making the first ride significantly less likely to produce a panic response when the rider's legs come down on either side.