Shisen-sho

About Shisen-sho

Shisen-sho is a casual mahjong puzzle game where your goal is to clear the entire board by matching identical pieces. You remove pairs of matching tiles whenever a clear connection path of no more than three line segments links them together. Use built-in support tools like hints and undos to navigate tricky board states.

Shisen-sho presents players with a single-layer or multi-tile layout where pairs of matching mahjong symbols must be systematically identified and eliminated. Built around classic solitaire puzzle concepts, the title challenges your spatial awareness as you search for open paths between identical tiles. Each valid pair can only be removed if the connecting path turns at most twice, forming a maximum of three straight lines. As you clear pairs, new paths open across the layout, creating fresh matching opportunities. When facing difficult layouts or uncertain choices, you can use the Hint button to spot available pairs or the Undo button to reverse your previous move and rethink your strategy.

Your goal

The primary objective in Shisen-sho is to remove all mahjong tiles from the playing board according to the connection rules. To achieve a complete clear, you must evaluate the entire layout, find matching pairs that share an unobstructed path of at most three lines, and steadily eliminate pieces until no tiles remain on the screen.

How to play Shisen-sho

1. Scan the board to find two tiles displaying the exact same picture.

2. Verify that a clear connection line between the two matching tiles requires a maximum of three line segments.

3. Select the matching pair to remove both pieces simultaneously from the board.

4. Click the Hint button if you need to reveal a currently valid pair that can be removed.

5. Click the Undo button to reverse your last move if you need to adjust your route or clear a different pair.

6. Continue eliminating pairs according to the rules until all mahjong tiles are removed from the board.

Controls and device support

• Controls: See in-game controls
• Device support: Browser
• Game frame: 640 x 520

Rules to keep in mind

• Pairs must share the exact same picture to be eligible for removal from the board.
• Two matching tiles can only be removed if they can be connected with a maximum of three lines.
• The game is successfully cleared only when all mahjong tiles have been removed according to the rules.

What makes the challenge interesting

Gameplay in Shisen-sho centers on line-of-sight pathfinding and methodical board management. Unlike games where tiles must simply be adjacent, Shisen-sho requires you to visualize the turns between pieces across the grid. Identifying pairs along the outer edges early often clears open corridors through the center, enabling new three-line connections. Strategic pacing is key, as removing one pair might block or enable access to another critical match. Utilizing the undo feature allows you to test different clearance sequences without losing your progress on challenging configurations.

Tips for Shisen-sho

• Focus on matching tiles along the outer perimeter first, as perimeter pieces typically require fewer line turns to connect.
• Use the Hint button whenever you feel stuck to quickly identify a pair that currently satisfies the three-line rule.
• Do not hesitate to use the Undo button to backtrack if a removal leaves you without viable matching paths.
• Double-check identical symbols across the board before committing to a move to avoid trapping matching tiles in tight clusters.

The skills behind the game

Within the puzzle category, Shisen-sho represents a distinct branch of tile-connection challenges. Often referred to as Rivers or four-rivers mahjong solitaire, these games bridge the gap between pattern recognition puzzles and spatial line-tracing mechanics. Players who enjoy casual logic puzzles appreciate the balance of straightforward matching rules and deliberate spatial planning required to systematically empty the board without running out of valid moves.

Who will enjoy this game

As a casual mahjong puzzle game online, Shisen-sho offers an accessible solitaire experience that tests logic and visual scanning. Enthusiasts searching for mahjong game online options find a unique dynamic here: rather than stacking or matching solely open edges, the three-line connection rule introduces an engaging route-finding puzzle that keeps each clearing session fresh and mentally stimulating.

Games with a similar feel

Mahjong Titans: Both Shisen-sho and Mahjong Titans use traditional mahjong tile symbols for a single-player matching experience. However, Mahjong Titans focuses on layered 3D tile stacks with open side requirements, whereas Shisen-sho requires connecting pairs via unobstructed paths with at most three lines.

Microsoft Solitaire Collection: Both Shisen-sho and Microsoft Solitaire Collection offer casual single-player solitaire puzzle formats focused on clearing the playing field. While Microsoft Solitaire Collection is based on standard card decks and sequencing rules, Shisen-sho uses mahjong tiles and spatial line-connection constraints.

Frequently asked questions

How do you remove tiles in Shisen-sho? You remove tiles by selecting two matching pieces with the same picture that can be connected by a clear path consisting of a maximum of three straight lines.

What happens if you cannot find a valid pair? You can click the Hint button to show an available matching pair that can currently be removed, or click the Undo button to reverse your previous move.

What is the winning condition in Shisen-sho? To win Shisen-sho, you must successfully match and remove every mahjong tile from the playing board in accordance with the established three-line connection rules.