[Event "Match"]
[Site "Dublin IRL"]
[Date "1937.03.11"]
[Round "3"]
[White "Koltanowski, George"]
[Black "O'Hanlon, John J."]
[Result "1-0"]
[PlyCount "41"]
[ECO "D05"]
[Opening "Colle system"]
[Venue "Dublin C.C., 20 Lincoln Place"]
[EventDate "1937.03.08"]
[Source "Irish Independent 12 Mar 1937 p16"]
[URL "https://www.irlchess.com/games_archive/sundry_files_2025-08/koltanowski-ohanlon--1937-1.htm"]
[LastModified "Mon Aug 18 10:34:13 2025"]

{ Annotator: Anon., <em>Irish Independent</em> (in quote marks here); Dr.
Stefan Ottow, <em>Kaissiber</em>; David McAlister (&ldquo;RR&rdquo; here).
} { Source: <em>Irish Independent</em>, March 12, 1937, p. 16. } {
References: &ldquo;Meister des L&auml;uferopfers Edgard Colle und sein
System&rdquo;, Dr. Stefan Ottow, <em>Kaissiber</em>, no. 3, July-September
1997; Irving Chernev, <em><a
href="https://archive.org/details/1000bestshortgam0000cher">The 1000 Best
Short Games of Chess</a></em> (Simon and Schuster, 1955), game 813. }

1. d4 d5 2. Nf3 Nf6 3. e3 c5 ({ "This is quite playable, but foreign to
O'Hanlon's style. } 3... Bf5 { as recommended by many experts gives Black a
freer game." }) { &#91;RR There are two points we should mention here: } ({
1. We are following the game score as it appears in the Irish Independent,
but Ottow's Kassibier article instead goes } 3... e6 4. Bd3 c5 5. c3 { .
This is also the move order given in Chernev's book. }) ({ 2. Previously in
the very well-known game Colle - O'Hanlon, Nice 1930, (also extensively
analysed by Ottow in his Kassibier article) after 1. d4 d5 2. Nf3 Nf6 3. e3
O'Hanlon had already played 3... c5. The game continued } 3... c5 4. c3 e6
5. Bd3 Bd6 6. Nbd2 Nbd7 7. O-O O-O 8. Re1 Re8 9. e4 dxe4 10. Nxe4 Nxe4 11.
Bxe4 cxd4 12. Bxh7+ Kxh7 13. Ng5+ Kg6 14. h4 Rh8 15. Rxe6+ Nf6 16. h5+ Kh6
17. Rxd6 Qa5 18. Nxf7+ Kh7 19. Ng5+ Kg8 20. Qb3+ { 1-0.&#93; }) 4. c3 e6 5.
Bd3 Nc6 6. Nbd2 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. e4 Qc7 10. Qe2 Re8 11. e5
Nd7 12. Nb3 Bb6 13. Bf4 f6 $2 ({ "Black's game is cramped, but } 13... f5 {
here is much better." }) 14. Rae1 Ndxe5 $2 ({ "This gives Koltanowski a
chance to start a winning combination at once. } 14... f5 { even now would
leave him with some, if poor, fighting chances." }) ({ &#91;RR Again this
is the Irish Independent move order, but Ottow and Chernev both give the
other Knight capturing first on e5: } 14... Ncxe5 15. Nxe5 Nxe5 { .&#93 })
15. Nxe5 Nxe5 16. Bxh7+ { &#91;RR Ottow here comments, &ldquo;Der arme John
J. O'Hanlon wird ein weiteres Mal mit diesem L&auml;uferopfer
konfrontieret, nach dem er 1930 spektakul&auml;r gegen Colle verloren
hatte.&rdquo; (Poor John J. O'Hanlon is confronted with this bishop
sacrifice once again, after losing spectacularly to Colle in 1930.)&#93; }
16... Kf8 17. Bg6 Rd8 18. Qh5 Ke7 19. Nd4 Bd7 20. Rxe5 fxe5 21. Bxe5 {
"Resigns. As, if he moves his Queen anywhere, White mates in three thus:-
22, Qh4+ Kf8 23,Qh8+ Ke7 24.Qxg7 mate." } 1-0