* TSX up 471.61 pts, or 4 pct, at 12,204.11
* TSX's biggest single-day gain since March 23, 2009
* Materials shares up 6 pct, energy up more than 4 pct
* Central banks move to ease market liquidity
* China cuts bank reserves in policy shift (Adds details, analyst comments)
By Jon Cook
TORONTO, Nov 30 (Reuters) - Canadian stocks jumped more than 4 percent on Wednesday in their biggest single-day gain in more than two years, pushed up by an agreement by global central banks to tackle the euro-zone debt crisis and by a move by China to ease credit.
Commodity prices, particularly for oil, gold and base metals, rose on renewed investor optimism for the global economy, lifting the TSX's heavily weighted materials sector 6 percent. [ID:nN1E7AT0GX]
Miner Goldcorp G.TO rose 5.4 percent to C$53.98 and Barrick Gold ABX.TO was up 2.8 percent at C$52.90, to lead gains.
Energy issues, up 4.7 percent, and financial stocks, up nearly 4 percent, also were big contributors to the rally as rejuvenated investors pulled their money from the security of government bonds into riskier plays.
Suncor Energy SU.TO jumped 5.1 percent to C$30.72 to lead energy gains. Royal Bank of Canada RY.TO led financials, gaining 5 percent to C$47.26.
The move by the TSX index mirrored hefty gains on other global markets as central banks from the world's leading economies, including the Bank of Canada, the U.S. Federal Reserve and the European Central Bank, agreed to lower the cost of dollar swap lines by 50 basis points, as well other measures. [ID:nN9E7LI02P]
"Santa has come early and he happens to look a lot like (Fed Chairman) Ben Bernanke, right down to the beard, and in his bag he has lots and lots of U.S. dollars available to exchange for euros in unlimited amounts," said Gavin Graham, president of Graham Investment Strategy.
"All the risk assets, whether it's gold or copper or oil or the Canadian dollar, are all shooting up and it's likely that we'll see a continuation of that (for the rest of the year)," Graham said.
The Toronto Stock Exchange's S&P/TSX composite index .GSPTSE closed up 471.61 points, or 4 percent, at 12,204.11. It was the TSX's biggest single-day gain since March 23, 2009 when the market finished up more than 5 percent.
($1=$1.02 Canadian) (Editing by Rob Wilson; editing by Peter Galloway)