411 REFERENCE · Wikibooks
Chess Opening Theory/1. d4/1...d5/2. c4/2...c6/3. Nf3/3...Nf6/4. Nc3/4...dxc4/5. a4/5...Bf5/6. Ne5/6...Nbd7/7. Nxc4/7...Qc7/8. g3/8...e5/9. dxe5/9...Nxe5/10. Bf4/10...Nfd7/11. Bg2/11...g5/12. Ne3
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Slav defence: Morozevich variation D17 Morozevich variation
12. Ne3
White decides to exchange the bishop pair with Black. After 12...gxf4 13. Nxf5 both sides will have one bishop left.
There are no alternatives to 12...gxf4, as they all lose material or give White a lot of initiative.
Theory table
0 12...gxf4 13. Nxf5 O-O-O
References
See also