Puzzle of the week #289

Submitted by Eugen on Mon, 01/18/2016 - 23:20
English opening
Level
4-Rook
Chess Diagram
[Event "Puzzle #289"][Date "2016.01.18"][Result "1-0"]1. c4 e5 2. Nc3 d6 3. g3 Nf6 4. Bg2 Be7 5. e3 Nc6 6. Nge2 O-O 7. O-O Re8 8. d4 Bf5 9. Bd2 Qd7 10. Bh1 Na5 11. b3 Rab8 12. Rc1 a6 13. f4 Bf8
This game was played between 2 local juniors. Please replay it and once you reach move 14, your tasks are:
a) Name the opening
b) Mention at least 2 good aspects of white's opening setup
c) Find the best line for white based on the position
Total available points for this puzzle is 25. The answers will be published next time together with puzzle #290.

Puzzle #288 solution:
Study by F. Amelung 1897. The correct answers were:
a) The solution is:
[Event "Puzzle #288"][Date "2015.12.07"][Result "1-0"][SetUp "1"][FEN "7R/7p/5P1k/4PKpP/8/8/8/8 w - g6 0 1"]1. hxg6 {en passant} Kh5 2. Rxh7#
b) The most important detail to start with is to find out what could have been black's last move:
(#) The h7-pawn is blocked and has not moved
(#) The h6-King could have been on the g7-square; however when in check he would have captured the h8-Rook and not move away. The second aspect is how could the f6-pawn move there when the f5-King blocks it? The h6-King has not moved
(#) The g-pawn is the only one capable to move. He could not be on the g6-square because the f5-King would be in check. The only possible position for it was on the g7-square and because of this the last move was "g7-g5". This enables the en-passant first move of the solution.

Correct solutions:
Bradley, Jalen - 20 points
Yakov, Ethan - 12 points
Benjamin - 11 points
Deryk, Cody, Coco, Ronald, Aaron - 2 points
Terry - 1 point

Final Standings 2015:
Cody - 138 points
Coco - 117 points
Jalen - 103 points

Bradley - 102 points
Benjamin - 97 points
Yakov - 95 points
Deryk - 88 points
Terry - 66 points
Andrew - 57 points
Aaron - 56 points
Ronald - 42 points
Ethan - 12 points