Competition to find the SP with the highest number of viable first moves

                 SP491: 15 viable first moves at a variation score of only +/- 0.1!

1. a3 - yes because it enables Qa2 developing the queen
2. a4 - yes because it enables Qa3 developing the queen
3. c3 - yes because it defends against Bh8 and allows d4
4. c4 - yes because it claims some center and can be supported by d3
5. d3 - yes because it develops a bishop
6. d4 - yes because it develops a bishop
7. e3 - yes because it allows Ne2/c3
8. e4 - yes because it claims some center and allows Ne2/c3
9. f4 - yes because it develops a bishop, controls g5 and threatens f5
10. g3 - yes because it develops a bishop
11. g4 - yes because it develops a bishop and is supported by a rook
12. h4 - yes because it takes control of g5, threatens h5 and allows Nh2/f3
13. Nb3 - yes because it controls d4
14. Nd3 - yes because it enables rapid castling
15. Ne3 - yes because it is flexible and developing

Reference: http://chess960jungle.blogspot.com.au/2013/09/chess960-competition-to-find-sp-with.html