Battle Line — Rules, Formations & Flag Strategy

Battle Line setup and objective

Battle Line is a two-player tactical card game designed by Reiner Knizia and published by GMT Games. Set the nine Flags in a straight line between the two players. Shuffle 60 Troop cards—six colors numbered 1–10—and deal seven cards to each player. Shuffle the ten Tactics cards separately and place each draw deck at a different end of the line.

The player who did not deal starts. Your goal is to claim either three neighboring Flags, called a Breakthrough, or any five of the nine Flags, called an Envelopment. Either achievement wins immediately.

What happens on your turn?

Play one Troop card or one eligible Tactics card from your hand, face up. Troop cards go to one of the unclaimed Flags on your side, with no more than three cards per side in normal conditions. You may then claim eligible Flags before drawing back up to seven cards from either deck.

If a deck empties, you may draw from the other; if both are empty, play continues without replacements. If you cannot legally play a Troop card, you may pass or play an eligible Tactics card. Claimed Flags cannot receive additional cards or be affected by subsequent Tactics.

Formation ranking: strongest to weakest

A higher-ranked formation defeats a lower one regardless of card-value sum. When both formations have the same rank, compare the sum of all their values; higher sum wins. For example, a Phalanx of three 7s beats a Phalanx of three 6s.

How ties are resolved

If both sides have formations of the same class and the same total strength, the player whose formation was completed first wins the tie. The order of cards inside a completed formation does not matter.

Example: a Blue Battalion totaling 17 can tie a Red Battalion totaling 17. If your third card was played before your opponent completed theirs, your formation wins that Flag. This tie rule also matters when deciding whether an opponent could hypothetically equal an already-completed formation.

How to claim a Flag before your opponent finishes

You may claim one or more Flags during your turn before drawing, provided your formation there is complete and cannot be beaten by any formation the opponent could still make. If both formations are already complete, compare them normally.

If the opponent has fewer than three cards at that Flag, you must prove they cannot beat or tie advantageously against your formation using the publicly visible Troop cards elsewhere on the battlefield. You cannot rely on cards hidden in your own hand as proof, even if you know they would be unavailable to the opponent. Undrawn Tactics cards are also ignored as potential interruptions to the claim.

Example: you hold a completed Blue 4–5–6 Wedge at a Flag. If the publicly displayed Troop cards show every way the opponent could assemble a stronger Wedge is impossible, you may claim before their side is full. Otherwise, you must wait.

Once claimed, move the Flag toward your side. It becomes locked: neither player can add more Troops or alter cards beside it.

How many Tactics cards may you play?

The ten Tactics cards provide exceptions to ordinary formation play. You can draw from the Tactics deck instead of the Troop deck when replenishing your hand, but the number you may play is restricted: at no point may you have played more than one additional Tactics card compared with your opponent.

For example, if your opponent has played zero Tactics cards, you may play one. You cannot play a second until your opponent has played at least one. Keep all played Tactics visible so both players can verify the count.

Morale Tactics: Leader, Cavalry and Shield Bearers

Leader (Alexander or Darius): a wild Troop substitute whose color and value can be designated for formation evaluation. Each player may use only one Leader during the game.

Companion Cavalry: substitutes for a Troop of value 8 in a color of your choice.

Shield Bearers: substitutes for a Troop of any color with a value of 1, 2 or 3.

Morale cards use one formation slot like Troops. Their flexibility may complete a Wedge or Phalanx that ordinary drawn cards would not allow.

Environment Tactics: Fog and Mud

Fog: at the chosen unclaimed Flag, ignore formation categories and decide the winner by total card value alone.

Mud: the chosen Flag now requires four cards per side rather than three, with the formation categories evaluated using the enlarged formations. This can disrupt a promising three-card line and change how much hand commitment is required.

Environment cards stay active beside their Flags for the rest of the game or until the Flags are claimed, after which no new effects can target those cards.

Guile Tactics: Scout, Redeploy, Deserter and Traitor

• Scout: draw three cards total from either or both draw decks, then return any two cards from your hand facedown to the tops of their respective decks.
• Redeploy: take one Troop or Tactics card on your own side of an unclaimed Flag and put it in an available legal position on your side, or discard it face up.
• Deserter: choose and discard one Troop or Tactics card from your opponent’s side of an unclaimed Flag.
• Traitor: take one opponent Troop card (not a Tactics card) from an unclaimed Flag and move it to one empty slot on your own side.

All discarded cards remain visible as public information, which can matter when proving a Flag is safe to claim.

Two ways to win the Battle Line game

A Breakthrough requires three Flags immediately next to one another in the nine-Flag line. An Envelopment requires any five Flags, regardless of their positions.

Examples: winning Flags 3, 4 and 5 ends the game even though you hold only three in total. Winning Flags 1, 3, 5, 7 and 9 also ends the game, because you hold five.

If playing a series of matches, the publisher suggests awarding the winner five match points and the loser as many points as Flags they claimed; the winner starts the next game.

Basic play, advanced Flag claiming and editions

For an easier introduction, play without Tactics cards. In that variant, the hand size is six Troop cards rather than seven. All standard formation, tie and Flag-winning rules still apply.

An optional advanced rule restricts Flag claims to the beginning of your turn. This delays claims and gives opponents another opportunity to interfere with a contested position.

Battle Line: Medieval is a later rethemed edition. Its core battle structure is familiar, but expansion and printing-specific rules should be checked separately. Schotten Totten is a related Knizia design with similar poker-like formations but a different presentation and edition rules.

Nine strategic principles

• Track possible Wedges. Consecutive same-color sequences have the highest formation ranking and require specific cards.
• Keep more than one winning route. A breakthrough needs three adjacent Flags, while five spread-out Flags also win.
• Commit selectively. Cards on a lost or irrelevant Flag cannot usually be moved without a Tactics effect.
• Use public information. Played and discarded cards can prove a Flag is safe even before your opponent finishes.
• Remember who completed first. The priority in exact ties can make a modest formation unexpectedly strong.
• Respect Tactics parity. Drawing many Tactics is not useful if you are unable to play them under the one-more-than-opponent restriction.
• Consider a Fog reversal. A strong formation can become weak if only its numeric sum matters.
• Protect adjacent Flags. Two neighboring claimed Flags create an urgent threat for the next one.
• Use six-card basic play when learning. Formation planning is easier without card-effect exceptions.

These are original deductions from rules, not claimed firsthand playtesting.

Battle Line FAQ

How many players can play?

Two under the standard game.

How many cards are in the box?

60 Troops, 10 Tactics and nine Flags.

How many cards do players hold?

Seven in normal play; six without Tactics.

Which formation is best?

Wedge: three same-color consecutive numbers.

Can you claim a Flag without the opponent finishing?

Yes, if you can prove with public information that no available Troop cards could beat your formation.

Can you use cards in your hand as proof?

No.

What breaks equal-formation ties?

The player who completed their formation first.

What is the limit on Tactics cards?

You cannot have played more than one additional Tactics card over your opponent.

Can you affect a claimed Flag?

No. It becomes locked.

How do you win?

Claim three adjacent Flags or any five Flags.

Who should play Battle Line?

Best for two players who enjoy deliberate hand management, formation probabilities and tense contests over individual positions. The Tactics cards add exceptions; play without them first if you want a cleaner introduction.

Similar games and what to play next

If you are comparing this game with other titles on BoardGameArchive, these guides explain genuinely different mechanics and player experiences:

• Schotten Totten — The closest comparison: another Knizia formation contest over contested stones, with edition-specific differences.
• Air, Land & Sea — An alternative two-player battlefield duel using special abilities and tactical withdrawal.
• Lost Cities — For two-player card timing and risk without formations or special tactical effects.

Sources and editorial scope

• GMT Games official Battle Line 12th printing product and rules resources
• Published Battle Line rulebook transcription
• Battle Line searchable rulebook

Reviewed October 11, 2026. Strategic commentary is original and does not claim personal playtesting. Compare edition-specific Tactics texts with your physical rulebook. Editorial policy and corrections.