diff --git a/src/mame/drivers/tasc.cpp b/src/mame/drivers/tasc.cpp
index 13a0c1ec7c2..e795f1cd1f5 100644
--- a/src/mame/drivers/tasc.cpp
+++ b/src/mame/drivers/tasc.cpp
@@ -6,7 +6,7 @@ Tasc ChessSystem
 
 Commonly known as Tasc R30, it's basically a dedicated ChessMachine.
 The King chess engines are also compatible with Tasc's The ChessMachine software
-on PC, however the prototype Gideon 2.1(internally: Rebel 2.01) is not.
+on PC, however the prototype Gideon 3.1(internally: 2.1, Rebel 2.01) is not.
 
 WARNING: Don't configure more than 512KB RAM for R30 The King 2.50, it will still
 be playable but will actually use less than 512KB RAM and become weaker.
@@ -378,4 +378,4 @@ ROM_END
 CONS( 1995, tascr30,  0,       0, tasc,    tasc,  tasc_state, empty_init, "Tasc", "ChessSystem R30 (The King 2.50)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_TIMING | MACHINE_CLICKABLE_ARTWORK )
 CONS( 1993, tascr30a, tascr30, 0, tasc,    tasc,  tasc_state, empty_init, "Tasc", "ChessSystem R30 (The King 2.20)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_TIMING | MACHINE_CLICKABLE_ARTWORK )
 CONS( 1993, tascr30b, tascr30, 0, tasc,    tasc,  tasc_state, empty_init, "Tasc", "ChessSystem R30 (The King 2.23, TM version)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_TIMING | MACHINE_CLICKABLE_ARTWORK ) // competed in several chesscomputer tournaments
-CONS( 1993, tascr30g, tascr30, 0, tasc,    tasc,  tasc_state, empty_init, "Tasc", "ChessSystem R30 (Gideon 2.1, prototype)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_TIMING | MACHINE_CLICKABLE_ARTWORK ) // made in 1993, later released in 2012
+CONS( 1993, tascr30g, tascr30, 0, tasc,    tasc,  tasc_state, empty_init, "Tasc", "ChessSystem R30 (Gideon 3.1, prototype)", MACHINE_SUPPORTS_SAVE | MACHINE_IMPERFECT_TIMING | MACHINE_CLICKABLE_ARTWORK ) // made in 1993, later released in 2012