After Wojtaszek won the first game, it's Naiditsch who must win the second to force an Armageddon!
Both players agreed to wear wrist bands so we also have their heart rates!
17...c4! [A deep move in order to improve the bad light-squared bishop in the future.]
[17...Bg7 18.Nb2 Rd8 19.Kg2 Bc8 20.Kg1 Qd7 21.Qf2 Ba6 22.Rad1 Bb7 23.h4 h6 24.Re2 c4 25.Nxc4 c5 26.Rde1ยฑ; 17...Rb8 18.c4 Rbe8 19.Bc3ยฑ]
18.d4 [18.dxc4 c5 19.Kg1 Bg7 20.Rad1 Bc6 21.Bc1 Be4=]
18...Qb7! [Black cleverly places his queen on the long diagonal and prepares for the c5โlever.]
[18...c5? 19.d5ยฑ]
19.Qxc4 c5 20.Re3 [20.d5?? Bb5โ+]
20...cxd4 [20...g5 21.dxc5 (21.fxg5 cxd4 22.cxd4 Bxg5 23.d5 Bb5 24.Qb4 Bxe3โ+) 21...g4โ+]
21.cxd4 Rc8 22.Qb4 Bc6 23.Qxb7 Bxb7 24.Kg1 Bxf3 25.Rxf3 Nxd4 26.Rd3 dxe5 27.Re1 [27.fxe5?? Bxd2 28.Rxd2 (28.Rxd4 Be3+ 29.Kf1 Bxd4โ+) 28...Nf3+ 29.Kf2 Nxd2โ+]
27...Rfd8 28.Rxe5 [28.Kf2 e4 29.Rc3 Rxc3 30.Bxc3 Nf3 31.Rc1 Nxh2โ+]
28...Ne2+ 29.Rxe2 Rxd3 30.Bb4 Rd1+ 31.Kg2 Rdc1 32.Kf3 R1c2 33.h4 [33.Rxe7 Bf8 34.Rb7 Rd8 35.Ke3 Bxb4 36.Rxb4 Re8+ 37.Kd3 Rxa2 38.Rb7 Rxh2โ+]
33...Rxe2 34.Kxe2 Rc2+ 35.Kf3 Rxa2 36.Bc5 Bf8 37.Bxa7 Ra3 38.Be3 e6 39.Nb6 Rxb3 40.Nd7 Bd6 41.Kf2 Kf7 42.Bd4 Ke7 43.Nf6 Bc5 0โ1
[17...Bg7 18.Nb2 Rd8 19.Kg2 Bc8 20.Kg1 Qd7 21.Qf2 Ba6 22.Rad1 Bb7 23.h4 h6 24.Re2 c4 25.Nxc4 c5 26.Rde1ยฑ; 17...Rb8 18.c4 Rbe8 19.Bc3ยฑ]
18.d4 [18.dxc4 c5 19.Kg1 Bg7 20.Rad1 Bc6 21.Bc1 Be4=]
18...Qb7! [Black cleverly places his queen on the long diagonal and prepares for the c5โlever.]
[18...c5? 19.d5ยฑ]
19.Qxc4 c5 20.Re3 [20.d5?? Bb5โ+]
20...cxd4 [20...g5 21.dxc5 (21.fxg5 cxd4 22.cxd4 Bxg5 23.d5 Bb5 24.Qb4 Bxe3โ+) 21...g4โ+]
21.cxd4 Rc8 22.Qb4 Bc6 23.Qxb7 Bxb7 24.Kg1 Bxf3 25.Rxf3 Nxd4 26.Rd3 dxe5 27.Re1 [27.fxe5?? Bxd2 28.Rxd2 (28.Rxd4 Be3+ 29.Kf1 Bxd4โ+) 28...Nf3+ 29.Kf2 Nxd2โ+]
27...Rfd8 28.Rxe5 [28.Kf2 e4 29.Rc3 Rxc3 30.Bxc3 Nf3 31.Rc1 Nxh2โ+]
28...Ne2+ 29.Rxe2 Rxd3 30.Bb4 Rd1+ 31.Kg2 Rdc1 32.Kf3 R1c2 33.h4 [33.Rxe7 Bf8 34.Rb7 Rd8 35.Ke3 Bxb4 36.Rxb4 Re8+ 37.Kd3 Rxa2 38.Rb7 Rxh2โ+]
33...Rxe2 34.Kxe2 Rc2+ 35.Kf3 Rxa2 36.Bc5 Bf8 37.Bxa7 Ra3 38.Be3 e6 39.Nb6 Rxb3 40.Nd7 Bd6 41.Kf2 Kf7 42.Bd4 Ke7 43.Nf6 Bc5 0โ1