Below are analysis of IM Mas Hafizul game against IM Ashot Nanadian in round 4.
Mas Hafizulhelmi (2372) - Ashot,Nadanian (2436) [B01]
4th Singapore Masters (4), 18.12.2007
1.e4 d5 2.exd5 Nf6 this gambit ideas is played for active play 3.d4 Nxd5 4.Nf3 g6 5.Be2 Bg7 6.0–0 0–0 7.c4 Nb6 8.h3 a useful move. It avoids annoying ...Bg4 pins although black will use the tempo to organize counterattack with e5. 8...Nc6 9.Be3 e5 10.d5 Ne7 11.Nc3
Nf5 [11...h6! preventing Bg5 followed by ...Nf5 will give black a good prospect] 12.Bc5 [12.Bg5 may be better because black have to weaken his position a little bit 12...f6 (12...Qd7 13.a4!) 13.Bc1] 12...Re8 13.Rc1 Black has a cramped position 13...e4N [13...Nd7!? 14.Ba3 e4 15.Ne1 Qg5] 14.Nd2 Qh4?! too early. May be black should play 14...e3 first 15.Bg4 h5 16.Bxf5 Bxf5 17.Be3 Nd7 18.Nb5 This knight will give black some headache.
18...Bxh3!? An interesting sacrifice. White should defense accurately because his king side have been teared apart! 19.gxh3 Qxh3 20.Bf4 [20.Nxc7?? the pawn contains a lethal dose of poison 20...Be5 21.f4 Qxe3+ (21...Bxc7?! is impossible 22.Qe2–+) 22.Kg2 Bxc7–+] 20...Bxb2 21.Qb3 [21.Nxc7? Mas can't grab the material yet because 21...Ne5 22.Bg3 h4 23.Nxe4 hxg3 24.fxg3 Ng4–+] 21...e3 22.fxe3!? Mas sacrifices material because he refuse to draw the game with [22.Bxe3 Qg4+ 23.Kh2 Qh4+ 24.Kg2 Qg4+ 25.Kh2 Qh4+ 26.Kg2 Qg4+ White can't escaped the perpetual check 27.Kh2=] 22...Qg4+ [22...Bxc1 23.Rxc1 g5 24.Bxg5µ (24.Bxc7?? Taking that pawn is naive 24...Rxe3 25.Qd1 Rae8–+; ‹24.Nxc7 Nc5 25.Qd1 gxf4–+ 26.Nxe8 Qxe3+) ] 23.Kf2= Nc5 24.Qc2 Bf6? with this move Black loses his initiative. Actually black don't have to move the bishop yet because if [24...c6 25.Qxb2?? Nd3# not just winning the queen but also checkmate!] 25.Rh1 [25.Rg1 is better according to Fritz 25...Qh4+ 26.Rg3+-] 25...Bh4+= 26.Kf1 g5?? Black loses the upper hand [26...Bg5 the only rescuing move 27.Bxg5 Qxg5=] 27.Rg1+- Qh3+ 28.Ke2 Rac8 [28...Re7 a fruitless try to alter the course of the game 29.Rcf1 f6 30.Qg6+ Rg7 31.Qxf6] 29.Rcf1 Black is in trouble but he made thing worse with 29...Kf8?? [29...a6 30.Bxg5 Bg3+-] 30.Rf3 1–0
Meanwhile at the same round FM Lim Yee Weng beat Philipino -Rolando Andador in 24 moves!
Lim Yee Weng (2336) - Rolando Andador (2199) [B22]
4th Singapore Masters (round 4), 18.12.2007
Black is already in difficult position because of his king side weakness and Yee Weng pieces is all attacking black weak spot on king side. Rolando made a serious mistake later
18... Bg5?? Black has made a serious mistake... understandable when you consider his position [18...Rf8 19.Bh6 Bd6+-] 19.Nxf7 Kxf7 [19...Qf6 20.Nxg5+- Qxf4 21.Qxh7+ Kf8 22.Qh8+ Ke7 23.Rxe6+ Kd7 24.Qxe8+ Kc7 25.Re7+ Kd6 26.Qd8+ Kc6 27.Ba4+ b5 28.Re6+ Qd6 29.Rxd6#]20.Qxh7+ Kf8 21.Bxg6 Qf6 22.Bd6+ Re7 23.Bxe7+ Qxe7 24.Qh8# 1–0