Editing Endgame study (section)

==Studies and special moves==
The special moves or [[rules of chess]], such as castling, underpromotion, double-square pawn advance, and ''[[en passant]]'' are commonly a key feature of studies, as are [[sacrifice (chess)|sacrifices]].

===Castling===
{{Chess diagram
|tleft
|[[Alexey Selezniev]], <br />''Tidskrift for Schack'' 1921
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|  |kd|  |pl|  |  |  |
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|  |rd|  |  |  |  |  |
|rl|  |  |  |kl|  |  |
|White wins
}}
Castling in the [[Chess endgame|endgame]] occurs seldom and is more often seen in studies. Here is one example where White wins by privilege of castling rights.

{{chessprobgloss|Try}}: 1.0-0-0? Ra2! 2.d7 Ra1+ 3.Kc2 Rxd1 4.Kxd1 Kc7 drawn.

White needs: '''1. d7! Kc7 2. d8=Q+! Kxd8 3. 0-0-0+''' simultaneously attacking the [[King (chess)|king]] and [[Rook (chess)|rook]] that is captured next move.
{{clear}}