From chicagoblackhawks.com: (link)
The Chicago Blackhawks announced today that single-game tickets for the first two rounds of potential 2010 Stanley Cup Playoff home contests will go on sale to the general public on Wednesday, March 31 at 10:00 A.M. Due to limited inventory, the tickets will be available for purchase exclusively at ticketmaster.com or by calling Ticketmaster at (800) 745-3000.
The 2010 Stanley Cup Playoffs will mark the first time in 13 years the Blackhawks will make consecutive postseason appearances. Chicago (46-21-7) currently holds the second seed in the Western Conference and ranks fourth overall in the National Hockey League with 99 points. The Blackhawks are one point away from posting consecutive 100-point seasons for the first time since 1970-71 and 1971-72.
Each customer will be limited to eight (8) total tickets with no more than four (4) for one game. Refunds for any un-played playoff games will be available at the point of purchase. In that event, the credit card used to purchase tickets by fans using the internet or phone will be automatically credited, less any applicable processing fee.