Takeout Doubles

Board 1
North Deals
None Vul
A K Q 10 7
10 5
J 2
A 8 5 3
8 6 4 2
Q 9 7 6
K 5 4
Q 2
N
WE
S
5
A J 8 4
A Q 10 7
K 7 6 4
J 9 3
K 3 2
9 8 6 3
J 10 9
WestNorthEastSouth
 1DblPass
2All pass  
2 by West

East has a perfect takeout double - support for all unbid suits. West has a poor hand so bids hearts at the lowest possible level. Lead is 4 against a spade contract and A against a heart contract. Play the hand twice: once in 2 by West then in 2 by North.