C is true.
10 Statements

All true statements have been found!
True statements: a, b, c, d, g, h, i, j
Statement (e) is false since the provided name has a spelling mistake, anyone realized that?
Statement (f) is false since it is actually the King Indian's Defence, not Attack.
Round Over!!

==Round 36==
a) The pawn is the shortest of all pieces while the Queen is the tallest.
b) The longest possible period for an online chess 10-move (10 for each player) game on chess.com to last is 280 days.
c) A chess game only has 3 possible outcomes, which are win, draw and lose.
d) Normally in the chess tournament, point deduction doesn't occur for losing a game unless stated beforehand.
e) A cross check is a check given by deflecting another check given by the opponent.
f) Dummy Group, a group on chess.com consists of only 1 member.
g) In a King and rook vs King endgame, it is impossible for the side with more material to force mate.
h) Gata Kamsky was a world champion.
i) 1. d4 d5 2. e4 is the Queen's Gambit.
j) A side with more material may not necessarily mean that it is actually winning.
==Leaderboard==
1. WBFISHER -- 42 points
2. MuhammadAreez10 -- 26 points
3. arindam_rao -- 16 points
4. JQuChess -- 15 points
5. KM101 -- 14 points
6. bendzsa12 -- 13 points
7. alekspachalov99 -- 11 points
8. superman0101 -- 8 points
9. Anna-Mercy -- 4 points
9. fltsrymy -- 4 points
11. soupram -- 2 points
11. mashantor -- 2 points
11. pushpendra999 -- 2 point
11. jothi-lingam -- 2 points
15. mahesh_r01 -- 1 point
15. catirene -- 1 point
15. jdfam7 -- 1 point
15. Prologue1 -- 1 point
15. July_Summer -- 1 point
15. Tom_Brady_SB49_Champ -- 1 point
15. SJFG -- 1 point
15. CheesyPuns -- 1 point
15. Eseles -- 1 point
[img]http://i.imgur.com/9DBbu7W.jpg[/img] hehe [url]http://www.totalnabeka.pl/img/1164/ten-moment-gdy/[/url]

All true statements have been found!
True statements: c, d, e, f, j
Statement (a) is false since in most chess sets the King is the tallest piece instead of the Queen.
Statement (b) is false since there is also vacation time to consider. :P
Statement (g) is false since it is actually possible to do so, though it would be quite difficult for someone with a bad endgame knowledge.
Statement (h) is false since though he was close to winning the title before, but never actually earned it till today.
Stataments (i) is false since Queen's Gambit is actually 1. d4 d5 2. c4, the provided line is suicide!
Round Over!! (Sorry for the delay)

==Round 37==
a) A White knight on d5 is mostly deadly if not dealt with by Black since it controls lots of key squares.
b) In 1996, Germany had the most chess players in the international rating list.
c) A '+' is used to indicate a plus in material in algebraic notation.
d) Having 2 White queens on the board at the same time is allowed.
e) A piece hangs when it is undefended.
f) Openings are named sequences of moves from the start position of the game.
g) The opposition is a vitally important concept in endgame play.
h) Scholar's Mate is a win for White.
i) A quiet position is a position in which there are few imminent tactics.
j) A player who resigns has the same result as a player who forfeits.
==Leaderboard==
1. WBFISHER -- 43 points
2. MuhammadAreez10 -- 27 points
3. arindam_rao -- 16 points
4. JQuChess -- 15 points
5. KM101 -- 14 points
6. bendzsa12 -- 13 points
7. alekspachalov99 -- 11 points
8. superman0101 -- 8 points
9. fltsrymy -- 5 points
10. Anna-Mercy -- 4 points
11. pushpendra999 -- 3 point
12. soupram -- 2 points
12. mashantor -- 2 points
12. jothi-lingam -- 2 points
12. Eseles -- 2 points
16. mahesh_r01 -- 1 point
16. catirene -- 1 point
16. jdfam7 -- 1 point
16. Prologue1 -- 1 point
16. July_Summer -- 1 point
16. Tom_Brady_SB49_Champ -- 1 point
16. SJFG -- 1 point
16. CheesyPuns -- 1 point
I would say the 3-3-5-10 systems are what I use.