5 votes so far... 2 votes, cxd5 1 vote, Bg5 1 vote, Bf4 1 vote, e3
I vote 5. Bf4 Link of the game: http://lichess.org/14tbZMCW
5 votes so far... 3 votes, Nc3 2 votes, g3 Link of the game: http://lichess.org/14tbZMCW
I vote 4. Nc3 Link of the game: http://lichess.org/14tbZMCW
6 Votes so far... 4 Votes , Nf3 1 Vote , Nc3 1 Vote , a3 Link of the game: http://en.lichess.org/14tbZMCW
3. Nf3
Link of the game: http://en.lichess.org/14tbZMCW I vote 2. c4 :)
In CrazyHouse you could MateIn1 if you had a Knight to put in c6 :)
Very good! I loved the puzzles and the repetition scheme seems very promising. Thank you for the good job!