26 Feb 2018

A00 Irregular Openings (1.g3 d5 2.Bg2)

A00 Irregular Openings (1.g3 d5 2.Bg2)

The move 1.g3 (44495 games, score 55%) is the 6th most played move in my reference database. The moves that people were more likely to play were 1.e4 (3440262 games, score 52.9%), 1.d4 (2149509 games, score 54.5%), 1.Nf3 (528976 games, score 55.4%), 1.c4 (449325 games, score 54.3%) and 1.f4 (45513 games, score 48.7%). My opponent's reply, 1...d5 (15198 games, score 53.8%) is the most popular move that has been played against 1.g3. Not surprisingly, 2.Bg2 (10609 games, score 53.2%), the logical follow-up to 1.g3, is also the most often played move. After that the game went onto to a strange and rarely played path as my opponent chose to play 2...d4 (2 games, score 100%), a move that makes no sense to me. The moves that had seen more play were, 2...Nf6 (4643 games, score 55.7%), 2...c6 (2585 games, score 51.3%), 2...e5 (1922 games, score 48.8%), 2...c5 (602 games, score 52.7%), 2...g6 (374 games, score 50.3%), 2...e6 (281 games, score 60.9%), 2...Nc6 (78 games, score 53.2%), 2...Bf5 (72 games, score 62.5%), 2...f5 (24 games, score 43.8%), 2...Bg4 (14 games, score 46.4%), 2...b6 (7 games, score 92.9%) and 2...h5 (3 games, score 0%). If one were to play moves only based on the percentages, you would play the move 2...h5, because it has performed the best for Black as the player who has controlled the black pieces has won all three games. In two out of those three games, the winning side was clearly the higher rated player, but there is one game that might be worthy to note, the game between Muhamed Sinanovic (2386) and Damir Samovojska (2307) that was played at Šibenik on September 28th, 2009, where the lower rated player was able to win.

In those two games where the move 2...d4 was played, White was the winner and this game followed the game between Ervin Mozes (2385) and Daniel Koval (2190), played at Sárospatak in 1994, up to the move 3.Nf3. In that game the move 3...g6 (2 games, score 100%) was played, but in my game the move that was chosen by Kojjootti was 3...c5 (5 games, score 60%), which is actually the most often occurred move. For this game I took the N signing for novelty out of its place, since it was after 3...c5 and therefore incorrectly placed. Next I simply castled, which had been seen in 8 games before this one with a score of 56.3%. In all of those 8 games, it was replied with 4...Nc6, like in this game. My 5th move, e3, had not been played in any of the games that appear in my reference database, so it can be called a novelty. The three moves that had been played were 5.d3 (6 games, score 41.7%), 5.c3 (2 games, score 100%) and 5.e4 (1 game, score 100%).

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1.g3 d5 2.Bg2 A00 Irregular Openings d4 2...c5 3.f4 g6 4.d3 Bg7 5.c3 Nc6 6.Nh3 Nf6 7.0-0 0-0 1/2-1/2 (7) Petran,P (2410) -Tibensky,R (2410) Topolcianky 1994 3.Nf3 3.d3 c5 4.Nd2 Nc6 5.b3 e5 6.Nc4 Bd7 7.e4 b5 8.Nd2 Be7 9.a4 bxa4 10.Rxa4 Nf6 11.Ngf3 0-0 12.0-0 Qc7 13.Nh4 g6 14.Nc4 Kg7 15.f4 Ng8 16.Nf3 f6 17.Ra1 Bg4 Krolik,W (1703) -Jaskowski,T (1978) Katy Rybackie 2009 1-0 (38) 3...c5N 3...g6 4.b4 Bg7 5.Bb2 e5 6.0-0 Ne7 7.e3 0-0 8.a3 c5 9.bxc5 Na6 10.a4 Nxc5 11.Ba3 Ne6 12.Ra2 Re8 13.exd4 exd4 14.d3 Nc6 15.Nfd2 Bf8 16.Qc1 Ng5 17.h4 Ne6 18.Ne4 Mozes,E (2385)-Koval,D (2190) Sarospatak 1994 1-0 4.0-0 Nc6 5.e3 Nf6 6.exd4 cxd4 7.d3 e6 8.Nbd2 White is slightly better. Bc5 9.Nb3 Bb6 10.Re1 0-0 11.Bg5 a5 12.Nbd2 a4 12...h6= 13.Bh4 Bc5
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WhiteEloWBlackEloBRes
Vierjoki,T1759Kojjootti17311–0
atiqman-Vierjoki,T-0–1
Medulla1686Vierjoki,T16091–0
Aurechess1224Vierjoki,T16330–1
Yeti1297Vierjoki,T16551–0
zlatko_Mos1564Vierjoki,T15500–1
Vierjoki,T1592Tocklin,T15021–0

Below you can view some of the latest and highest rated games that have reached the position after 2.Bg2.

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1.g3 d5 2.Bg2 e5 3.d3 Nf6 4.c4 dxc4 5.Qa4+ Bd7 6.Qxc4 Nc6 7.Nf3 Be7 8.0-0 0-0 9.Nbd2 h6 10.Nb3 Be6 11.Qc2 a5 12.Bd2 a4 13.Nc1 Qd7 14.a3 Bf5 15.e4 Bg4 16.Bc3 Bxf3 17.Bxf3 Rfd8 18.Rd1 Nd4 19.Bxd4 Qxd4 20.Ne2 Qb6 21.Rac1 c6 22.Kg2 Ra5 23.h4 Qa7 24.Rd2 Bc5 25.Rf1 Bd4 26.Nc3 Qc5 27.Qc1 Raa8 28.Bd1 Rd7 29.Rc2 Qe7 30.Re1 Bb6 31.Rd2 Ba5 32.Re3 Rd4 33.Bf3 Rad8 34.Rd1 b5 35.Qc2 Bb6 36.Na2 R4d6 37.Ree1 Qe6 38.Qb1 Nd7 39.Nc1 Nc5 40.Be2 Qf6 41.Bf3 Qe6 42.Rf1 Qd7 43.Be2 Rf6 44.Bf3 Rd6 45.Be2 Qe6 46.Qc2 Rf8 47.f4 exf4 48.Rxf4 Qe7 49.Bg4 Ne6 50.Bxe6 Qxe6 51.Qe2 Rfd8 52.Rdf1 R8d7 53.h5 Bd8 54.Qc2 c5 55.Qxc5 Bg5 56.Qc8+ Kh7 57.Rxf7 Rxf7 58.Qxe6 Rxe6 59.Rxf7 Bxc1 60.Rf2 Rd6 61.Rc2 Be3 62.Rc3 Bd4 63.Rc2 Be5 64.Rd2 b4 65.Kf3 b3 66.Ke3 Bd4+ 67.Ke2 Rf6 0–1
  • Start an analysis engine:
  • Try maximizing the board:
  • Use the four cursor keys to replay the game. Make moves to analyse yourself.
  • Press Ctrl-B to rotate the board.
  • Drag the split bars between window panes.
  • Download&Clip PGN/GIF/FEN/QR Codes. Share the game.
  • Games viewed here will automatically be stored in your cloud clipboard (if you are logged in). Use the cloud clipboard also in ChessBase.
  • Create an account to access the games cloud.
WhiteEloWBlackEloBRes
Hickl,J2556Petrov,N25110–1
Pourramezanali,A2533Yu,Y27440–1
Petrosian,T2615Meier,G2651½–½
Yuffa,D2527Inarkiev,E26940–1
Mamedov,R2709Korobov,A26521–0
Mamedyarov,S2799Grischuk,A27720–1
Duda,J2717Wojtaszek,R27361–0
Moussard,J2571Saric,I2664½–½
Moussard,J2571Adams,M27090–1
Margvelashvili,G2530Dreev,A26530–1

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