diff --git a/src/java/com/threerings/puzzle/drop/data/ByteDropBoard.java b/src/java/com/threerings/puzzle/drop/data/ByteDropBoard.java
deleted file mode 100644
index cea1916e8..000000000
--- a/src/java/com/threerings/puzzle/drop/data/ByteDropBoard.java
+++ /dev/null
@@ -1,152 +0,0 @@
-//
-// $Id: ByteDropBoard.java,v 1.1 2003/11/26 01:42:34 mdb Exp $
-
-package com.threerings.puzzle.drop.data;
-
-import java.util.Arrays;
-
-import com.threerings.puzzle.Log;
-
-/**
- * The byte drop board extends the {@link DropBoard}, making use of a
- * <code>byte</code> array of pieces to store the board contents.
- */
-public class ByteDropBoard extends DropBoard
-{
-    /**
-     * Constructs an empty byte drop board for use when unserializing.
-     */
-    public ByteDropBoard ()
-    {
-        this(null, 0, 0);
-    }
-
-    /**
-     * Constructs a byte drop board of the given dimensions with its
-     * pieces initialized to 0.
-     */
-    public ByteDropBoard (int bwid, int bhei)
-    {
-        this(new byte[bwid*bhei], bwid, bhei);
-        fill(PIECE_NONE);
-    }
-
-    /**
-     * Constructs a byte drop board of the given dimensions with its
-     * pieces initialized to the given piece.
-     */
-    public ByteDropBoard (int bwid, int bhei, byte piece)
-    {
-        this(new byte[bwid*bhei], bwid, bhei);
-        fill(piece);
-    }
-
-    /**
-     * Constructs a byte drop board with the given board and dimensions.
-     */
-    public ByteDropBoard (byte[] board, int bwid, int bhei)
-    {
-        _board = board;
-        _bwid = bwid;
-        _bhei = bhei;
-    }
-
-    // documentation inherited from interface
-    public int getPiece (int col, int row)
-    {
-        try {
-            return _board[(row*_bwid) + col];
-        } catch (Exception e) {
-            Log.warning("Failed getting piece [col=" + col +
-                        ", row=" + row + ", error=" + e + "].");
-            Log.logStackTrace(e);
-            return -1;
-        }
-    }
-
-    // documentation inherited from interface
-    public void fill (int piece)
-    {
-        Arrays.fill(_board, (byte)piece);
-    }
-
-    /**
-     * Sets the board data and board dimensions.
-     */
-    public void setBoard (byte[] board, int bwid, int bhei)
-    {
-        _board = board;
-        _bwid = bwid;
-        _bhei = bhei;
-    }
-
-    /**
-     * Sets the board pieces.
-     */
-    public void setBoard (byte[] board)
-    {
-        int size = (_bwid*_bhei);
-        if (board.length < size) {
-            Log.warning("Attempt to set board with invalid data size " +
-                        "[len=" + board.length + ", expected=" + size + "].");
-            return;
-        }
-
-        _board = board;
-    }
-
-    // documentation inherited from interface
-    public boolean setPiece (int col, int row, int piece)
-    {
-        if (col >= 0 && row >= 0 && col < _bwid && row < _bhei) {
-            _board[(row*_bwid) + col] = (byte)piece;
-            return true;
-
-        } else {
-            Log.warning("Attempt to set piece outside board bounds " +
-                        "[col=" + col + ", row=" + row + ", p=" + piece + "].");
-            return false;
-        }
-    }
-
-    // documentation inherited from interface
-    public void copyInto (DropBoard board)
-    {
-        // make sure the target board is a valid target
-        if (board.getWidth() != _bwid || board.getHeight() != _bhei) {
-            Log.warning("Can't copy board into destination board with " +
-                        "different dimensions [src=" + this +
-                        ", dest=" + board + "].");
-            return;
-        }
-
-        // copy our pieces directly into the board, avoiding any unsightly
-        // object allocation which is largely the point of this method,
-        // after all.
-        byte[] dest = ((ByteDropBoard)board).getBoard();
-        System.arraycopy(_board, 0, dest, 0, (_bwid*_bhei));
-    }
-
-    // documentation inherited
-    public Object clone ()
-    {
-        ByteDropBoard board = (ByteDropBoard)super.clone();
-        int size = _bwid*_bhei;
-        board._board = new byte[size];
-        System.arraycopy(_board, 0, board._board, 0, size);
-        return board;
-    }
-
-    /**
-     * Returns the raw board data associated with this board.  One
-     * shouldn't fiddle about with this unless one knows what one is
-     * doing.
-     */
-    public byte[] getBoard ()
-    {
-        return _board;
-    }
-
-    /** The board data. */
-    protected byte[] _board;
-}
diff --git a/src/java/com/threerings/puzzle/drop/data/ShortDropBoard.java b/src/java/com/threerings/puzzle/drop/data/ShortDropBoard.java
deleted file mode 100644
index 8bb618417..000000000
--- a/src/java/com/threerings/puzzle/drop/data/ShortDropBoard.java
+++ /dev/null
@@ -1,151 +0,0 @@
-//
-// $Id: ShortDropBoard.java,v 1.1 2003/11/26 01:42:34 mdb Exp $
-
-package com.threerings.puzzle.drop.data;
-
-import java.util.Arrays;
-
-import com.threerings.puzzle.Log;
-
-/**
- * The short drop board extends the {@link DropBoard}, making use of a
- * <code>short</code> array of pieces to store the board contents.
- */
-public class ShortDropBoard extends DropBoard
-{
-    /**
-     * Constructs an empty short drop board for use when unserializing.
-     */
-    public ShortDropBoard ()
-    {
-        this(null, 0, 0);
-    }
-
-    /**
-     * Constructs a short drop board of the given dimensions with its
-     * pieces initialized to PIECE_NONE.
-     */
-    public ShortDropBoard (int bwid, int bhei)
-    {
-        this(new short[bwid*bhei], bwid, bhei);
-        fill(PIECE_NONE);
-    }
-
-    /**
-     * Constructs a short drop board of the given dimensions with its
-     * pieces initialized to the given piece.
-     */
-    public ShortDropBoard (int bwid, int bhei, short piece)
-    {
-        this(new short[bwid*bhei], bwid, bhei);
-        fill(piece);
-    }
-
-    /**
-     * Constructs a short drop board with the given board and dimensions.
-     */
-    public ShortDropBoard (short[] board, int bwid, int bhei)
-    {
-        _board = board;
-        _bwid = bwid;
-        _bhei = bhei;
-    }
-
-    // documentation inherited from interface
-    public int getPiece (int col, int row)
-    {
-        try {
-            return _board[(row*_bwid) + col];
-        } catch (Exception e) {
-            Log.warning("Failed getting piece [col=" + col +
-                        ", row=" + row + ", error=" + e + "].");
-            Log.logStackTrace(e);
-            return -1;
-        }
-    }
-
-    // documentation inherited from interface
-    public void fill (int piece)
-    {
-        Arrays.fill(_board, (short)piece);
-    }
-
-    /**
-     * Sets the board data and board dimensions.
-     */
-    public void setBoard (short[] board, int bwid, int bhei)
-    {
-        _board = board;
-        _bwid = bwid;
-        _bhei = bhei;
-    }
-
-    /**
-     * Sets the board pieces.
-     */
-    public void setBoard (short[] board)
-    {
-        int size = (_bwid*_bhei);
-        if (board.length < size) {
-            Log.warning("Attempt to set board with invalid data size " +
-                        "[len=" + board.length + ", expected=" + size + "].");
-            return;
-        }
-
-        _board = board;
-    }
-
-    // documentation inherited from interface
-    public boolean setPiece (int col, int row, int piece)
-    {
-        if (col >= 0 && row >= 0 && col < _bwid && row < _bhei) {
-            _board[(row*_bwid) + col] = (short)piece;
-            return true;
-
-        } else {
-            Log.warning("Attempt to set piece outside board bounds " +
-                        "[col=" + col + ", row=" + row + ", p=" + piece + "].");
-            return false;
-        }
-    }
-
-    // documentation inherited from interface
-    public void copyInto (DropBoard board)
-    {
-        // make sure the target board is a valid target
-        if (board.getWidth() != _bwid || board.getHeight() != _bhei) {
-            Log.warning("Can't copy board into destination board with " +
-                        "different dimensions [src=" + this +
-                        ", dest=" + board + "].");
-            return;
-        }
-
-        // copy our pieces directly into the board, avoiding any unsightly
-        // object allocation which is largely the point of this method,
-        // after all.
-        short[] dest = ((ShortDropBoard)board).getBoard();
-        System.arraycopy(_board, 0, dest, 0, (_bwid*_bhei));
-    }
-
-    // documentation inherited
-    public Object clone ()
-    {
-        int size = _bwid*_bhei;
-        short[] data = new short[size];
-        System.arraycopy(_board, 0, data, 0, size);
-        return new ShortDropBoard(data, _bwid, _bhei);
-    }
-
-    /**
-     * Returns the raw board data associated with this board.  One
-     * shouldn't fiddle about with this unless one knows what one is
-     * doing.
-     */
-    public short[] getBoard ()
-    {
-        return _board;
-    }
-
-    /** The board data. */
-    protected short[] _board;
-}