One of the things that connects poker and chess is that, in both games, a key concept is that of giving your opponent the opportunity to make a mistake. In yesterday's championship game, Carlsen squeezed Anand until the following position arose. Black has sacrificed a couple of pawns (from being 2 pawns up) to get rook activity and an advanced f-pawn.

The position is still technically drawn, but only if White finds the correct move, namely: 60. b4 which starts moving the white pawns up the board and allows the White rook to harrass the Black king from behind. It's the only move that draws, according to the computers. Putting your opponent in a position where he has to find the only saving move, given a choice of 3-4 candidate moves is incredibly powerful play. Anand went wrong with 60. Ra4 and his own pawns on b2 and c3 get in the way of delivering the necessary saving checks from the side.
Now, here is a similar idea in poker. We're on the bubble of a $100 6mx. Villain is a very strong winning reg.
Poker Stars, $92.60 Buy-in (50/100 blinds) No Limit Hold'em Tournament, 3 Players
Poker Tools Powered By Holdem Manager - The Ultimate Poker Software Suite.
Hero (BB): 2,960 (29.6 bb)
BTN: 2,430 (24.3 bb)
SB: 3,610 (36.1 bb)
Preflop: Hero is BB with T
K
BTN folds, SB raises to 200, Hero calls 100
Flop: (400) Q
2
K
(2 players)
SB bets 200, Hero calls 200
Turn: (800) 9
(2 players)
SB bets 400, Hero calls 400
River: (1,600) J
(2 players)
SB checks, Hero bets 550, SB calls 550
Results: 2,700 pot
Final Board: Q
2
K
9
J
Hero showed T
K
and won 2,700 (1,350 net)
SB mucked 9
Q
and lost (-1,350 net)
On the river, villain plays his cards instead of his range vs my range. It's clear that Q9 (for two pair) is not ahead of any of my valuebetting range. But, having, turned two pair villian can't bear to let it go. I would have to be turning a one pair hand into a bluff for the call to be good. If we jam river, villain can hero fold; by betting an amount he can call, we induce the mistake.
In other news, 20k to go:
