1.Rxd7! [1.Rb6? Ba4+ 2.Kxa4 c2 3.Rh6 Nf2–+] 1...Ba4+! [1...Bxd7 2.Bxc3 Nxc5+

(2...a4+ 3.Kb4 Ke2 4.b3=) 3.Kc4 Nb7 4.a4 Bxa4 5.b4=; 1...Nxc5+ 2.Kxc3 Nxd7 3.a4

Bxa4 4.b4=] 2.Kxa4 c2 3.Rh7! [3.Rf7+? Kg2 4.Rg7+ Ng3 5.c6 c1Q 6.c7 Qc6+ 7.Kxa5

Kf3 8.Rh7 Nf5 9.Be5 Ke4 10.Bh2 Nd4 11.Rh5 Qb7 12.Ka4 Kd3 13.Rh3+ Ke2 14.Rh5

Kd2 15.Rg5 Kd3 16.Rg3+ Ke4 17.Rg5 Nc6–+] 3...Kg2 [3...Ng3 4.c6 c1Q 5.c7 Qc4+

6.Kxa5 Qc5+ 7.Ka6 Qc6+ 8.Ka5 Nf5 9.Be5 Ke2 10.b4 Ne3 11.b5 Qc5 12.Ka6 Nd5

13.Rh6 Qc4 14.Ka5 Nxc7 15.Bxc7 Qxc7+ 16.b6=; 3...Nf2 4.c6 c1Q 5.c7=] 4.Rh2+!

Kxh2 5.Be5+ Kg2 6.Bf4 Nxc5+ 7.Kb5! [7.Kxa5? Kf3 8.Bh6 Ke2 9.b4 Nb3+ 10.Ka6

Nd2–+] 7...Nd3! [7...Kf3 8.Bc1! Nd3 9.Kc4! Nxc1 10.Kc3 Ke4 11.Kxc2 Nd3 12.Kb3=]

8.Bd2! [8.Bh6? Kf3 9.Bd2 Ke2 10.Bh6 Kd1–+] 8...Nxb2 9.Bc1! Nd3 10.Bd2 switchback

10...Kf2 11.Kxa5 [11.Kc4? Ke2 12.Kc3 c1Q+ 13.Bxc1 Nxc1 14.Kc4 Kd2 15.Kb5 Nb3

16.Ka4 Kc3–+] 11...Ke2 12.Bh6! [12.Bg5? Kd1 13.Ka4 Nf2 14.Kb3 Ne4–+]

a) 12...Nc5 13.Kb4 (13.Kb5? Nb3–+) 13...Ne4 14.Bc1 switchback 14...Kd1 15.Bb2 draw,

b) 12...Kd1 13.Kb5! Nf2 14.Kc4 Ne4 15.Kd3 draw.

Meredith. Sacrifices on both sides.