Editing Perpetual check (section)

===Hamppe vs. Meitner===
{{Main|Immortal Draw}}
{{Chess diagram
|tright
|Hamppe vs. Meitner, 1872
|rd|  |bd|kd|  |  |  |rd
|  |  |pd|  |  |pd|pd|pd
|  |pd|kl|  |  |  |  |  
|pd|  |  |pd|pd|  |  |  
|  |  |  |  |  |  |  |  
|pl|  |  |  |  |  |  |  
|  |pl|pl|pl|  |  |pl|pl
|rl|  |bl|ql|  |  |nl|rl
|Down massive amounts of material, Black forces a draw by perpetual check.
}}
In a classic game [[Carl Hamppe]]–[[Philipp Meitner]], Vienna 1872,<ref>{{cite web |url=http://www.chessgames.com/perl/chessgame?gid=1250160 |title=Hamppe vs. Meitner, Vienna 1872 |website=[[Chessgames.com]] }}</ref> following a series of [[sacrifice (chess)|sacrifices]] Black forced the game to the position in the diagram, where he drew by a perpetual check: 
:'''16... Bb7+!'''
:'''17. Kb5''' 
If 17.Kxb7{{chesspunc|??}} Kd7 18.Qg4+ Kd6 followed by ...Rhb8#.
:'''17... Ba6+'''
:'''18. Kc6''' 
If 18.Ka4{{chesspunc|?}}, 18...Bc4 and 19...b5#.
:'''18... Bb7+ {{chessAN|½–½}}'''
{{clear}}