Both agree it is a xRay25 of 5,698
18. Bc4+ dxc4 19. Qxc4+ b5 20. axb5+
Lichess labelled discoveredCheck, doubleCheck, xRay
Lichess says xRay, Koga does not25 of 14,740
18... exf3 19. Nxf3 Nxf3+ 20. Bxf3 Qxe2 21. Bxe2 Bxe2
Lichess labelled fork, xRay
26... gxf6 27. Qa1 Qd1+ 28. Bf1 Bd4 29. Bb2 Qxa1 30. Bxa1 ... +1 moves
Lichess labelled xRay
18. Qa8+ Kd7 19. Bxb5+ c6 20. Bxc6+ bxc6 21. Qxc6#
Lichess labelled intermezzo, xRay
Koga says xRay, Lichess does not25 of 3,004
29... Qxe1+ 30. Rxe1 Rxe1+ 31. Kh2 Be5 32. Bf6+ Bxf6
Lichess labelled — (none mapped)
26... Bxe5 27. Rxc5 Bd4 28. Rd5 Bxb6 29. Rxd8 Bxd8
Lichess labelled — (none mapped)