diff -r faec61c4901f -r 970748b9a73b src/rules/pawn.c
--- a/src/rules/pawn.c	Wed Mar 26 14:12:59 2014 +0100
+++ b/src/rules/pawn.c	Wed Mar 26 14:53:15 2014 +0100
@@ -30,28 +30,44 @@
 #include "pawn.h"
 
 _Bool pawn_chkrules(Board board, Move *move) {
-    // TODO: implement
-    return TRUE;
+    int8_t d = ((move->piece & COLOR_MASK) == WHITE ? -1 : 1);
+    if (move->capture) {
+        if (move->fromrow == move->torow + d && (
+            move->fromfile == move->tofile + 1 ||
+            move->fromfile == move->tofile - 1)) {
+            // TODO: en passant
+            return mdst(board,move) != 0; /* color has been checked */
+        } else {
+            return FALSE;
+        }
+    } else {
+        if (move->fromfile == move->tofile) {
+            return (move->fromrow == move->torow + d) ||
+                (move->fromrow == (d < 0 ? 1 : 6) && /* advanced first move */
+                move->fromrow == move->torow + d*2);
+        } else {
+            return FALSE;
+        }
+    }
 }
 
 _Bool pawn_isblocked(Board board, Move *move) {
-    // TODO: implement
-    return FALSE;
+    return mdst(board,move) && !move->capture;
 }
 
 _Bool pawn_getlocation(Board board, Move *move) {
     int8_t d = ((move->piece & COLOR_MASK) == WHITE ? -1 : 1);
     
-    // TODO: battle moves
-    
-    move->fromfile = move->tofile;
+    if (move->fromfile == POS_UNSPECIFIED) {
+        move->fromfile = move->tofile;
+    }
     move->fromrow = move->torow + d;
     if (move->fromrow > 6) {
         return FALSE;
     } else {
         /* advanced first move */
         if (move->fromrow == (d < 0 ? 2 : 5) &&
-            board[move->fromrow][move->fromfile] != move->piece) {
+            msrc(board,move) != move->piece) {
 
             move->fromrow += d;
             if (move->fromrow > 6) {