I played a team match yesterday and had another first board disaster.

I picked up in 2nd all white

3 / J876542 / Q975 / 2

Righty opened 2 Spades, I passed, lefty passed, partner bid 3NT pass to me.

I wanted to transfer to hearts, but I wasn't sure partner would read a diamond bid as hearts, so I made what I considered the practical bid of 4 Hearts.

Lefty led a spade and dummy tracked

AKQ4 / K3 / K84 / AQT4

3 / J876542 / Q975 / 2

What's the plan?

Well, it seems clear to get to your hand to lead a heart up.  As long as you don't lose 3 trump tricks you should be fine.

Unfortunately I wasn't fully in bridge mode yet and made the single dummy play of ruffing a spade instead of a) listening to the auction and b) noting that the spade led was the DEUCE.  It's 100% to ruff a club to your hand if you give it more than a few moments thought.  If the spade lead is honest, it's almost surely a singleton, since opening 2 Spades in first on Jack fifth is not most people's style.

I ruffed and was overruffed and had to lose 2 more hearts and the ace of diamonds.

Opening leader held

2 / T9 / AJT63 / KJ953

Righty held

JT98765 / AQ / 2 / 876

The good news is we won 10 on the board.  Our opponents had a similar auction except the opp with the big hand unilaterally pulled 4 Hearts to 4NT and got whipped and went for 500.