diff --git a/README.md b/README.md
index a495d606..8023213f 100644
--- a/README.md
+++ b/README.md
@@ -75,7 +75,7 @@
 | | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 |
 | ---| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
 | python3 | [✓](src/main/python/AoC2019_01.py) | [✓](src/main/python/AoC2019_02.py) | [✓](src/main/python/AoC2019_03.py) | [✓](src/main/python/AoC2019_04.py) | [✓](src/main/python/AoC2019_05.py) | [✓](src/main/python/AoC2019_06.py) | [✓](src/main/python/AoC2019_07.py) | [✓](src/main/python/AoC2019_08.py) | [✓](src/main/python/AoC2019_09.py) |  | [✓](src/main/python/AoC2019_11.py) |  | [✓](src/main/python/AoC2019_13.py) |  |  | [✓](src/main/python/AoC2019_16.py) |  |  |  |  |  |  |  |  |  |
-| java | [✓](src/main/java/AoC2019_01.java) | [✓](src/main/java/AoC2019_02.java) | [✓](src/main/java/AoC2019_03.java) | [✓](src/main/java/AoC2019_04.java) | [✓](src/main/java/AoC2019_05.java) | [✓](src/main/java/AoC2019_06.java) | [✓](src/main/java/AoC2019_07.java) | [✓](src/main/java/AoC2019_08.java) | [✓](src/main/java/AoC2019_09.java) | [✓](src/main/java/AoC2019_10.java) | [✓](src/main/java/AoC2019_11.java) | [✓](src/main/java/AoC2019_12.java) | [✓](src/main/java/AoC2019_13.java) |  | [✓](src/main/java/AoC2019_15.java) | [✓](src/main/java/AoC2019_16.java) | [✓](src/main/java/AoC2019_17.java) |  |  |  |  |  |  |  |  |
+| java | [✓](src/main/java/AoC2019_01.java) | [✓](src/main/java/AoC2019_02.java) | [✓](src/main/java/AoC2019_03.java) | [✓](src/main/java/AoC2019_04.java) | [✓](src/main/java/AoC2019_05.java) | [✓](src/main/java/AoC2019_06.java) | [✓](src/main/java/AoC2019_07.java) | [✓](src/main/java/AoC2019_08.java) | [✓](src/main/java/AoC2019_09.java) | [✓](src/main/java/AoC2019_10.java) | [✓](src/main/java/AoC2019_11.java) | [✓](src/main/java/AoC2019_12.java) | [✓](src/main/java/AoC2019_13.java) | [✓](src/main/java/AoC2019_14.java) | [✓](src/main/java/AoC2019_15.java) | [✓](src/main/java/AoC2019_16.java) | [✓](src/main/java/AoC2019_17.java) |  |  |  |  |  |  |  |  |
 | bash |  |  |  |  |  |  |  | [✓](src/main/bash/AoC2019_08.sh) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
 | c++ |  |  |  |  |  |  |  | [✓](src/main/cpp/2019/08/AoC2019_08.cpp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
 | rust | [✓](src/main/rust/AoC2019_01/src/main.rs) |  |  |  |  |  |  | [✓](src/main/rust/AoC2019_08/src/main.rs) |  |  |  |  |  |  |  | [✓](src/main/rust/AoC2019_16/src/main.rs) |  |  |  |  |  |  |  |  |  |
diff --git a/src/main/java/AoC2019_14.java b/src/main/java/AoC2019_14.java
new file mode 100644
index 00000000..bd17bb0e
--- /dev/null
+++ b/src/main/java/AoC2019_14.java
@@ -0,0 +1,193 @@
+import static java.util.stream.Collectors.toMap;
+import static java.util.stream.Collectors.toSet;
+
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import com.github.pareronia.aoc.StringOps;
+import com.github.pareronia.aoc.StringOps.StringSplit;
+import com.github.pareronia.aoc.solution.Sample;
+import com.github.pareronia.aoc.solution.Samples;
+import com.github.pareronia.aoc.solution.SolutionBase;
+
+public class AoC2019_14
+        extends SolutionBase<Map<String, AoC2019_14.Reaction>, Long, Long> {
+    
+    private static final String ORE = "ORE";
+    private static final String FUEL = "FUEL";
+    private static final long ONE_TRILLION = 1_000_000_000_000L;
+
+    private AoC2019_14(final boolean debug) {
+        super(debug);
+    }
+
+    public static AoC2019_14 create() {
+        return new AoC2019_14(false);
+    }
+
+    public static AoC2019_14 createDebug() {
+        return new AoC2019_14(true);
+    }
+    
+    @Override
+    protected Map<String, Reaction> parseInput(final List<String> inputs) {
+        return inputs.stream()
+            .map(Reaction::fromString)
+            .collect(toMap(r -> r.material.name, r -> r));
+    }
+    
+    @Override
+    public Long solvePart1(final Map<String, Reaction> input) {
+        return oreNeededFor(FUEL, 1, input, new HashMap<>());
+   }
+    
+    @Override
+    public Long solvePart2(final Map<String, Reaction> input) {
+        final long part1 = oreNeededFor(FUEL, 1, input, new HashMap<>());
+        long min = ONE_TRILLION / part1 / 10;
+        long max = ONE_TRILLION / part1 * 10;
+        while (min <= max) {
+            final long mid = (min + max) / 2;
+            final long ans = oreNeededFor(FUEL, mid, input, new HashMap<>());
+            if (ans == ONE_TRILLION) {
+                return mid;
+            } else if (ans < ONE_TRILLION) {
+                min = mid + 1;
+            } else {
+                max = mid - 1;
+            }
+        }
+        return min - 1;
+    }
+    
+    private long oreNeededFor(
+            final String material,
+            final long amount,
+            final Map<String, Reaction> reactions,
+            final Map<String, Long> inventory
+    ) {
+        if (ORE.equals(material)) {
+            return amount;
+        }
+        final long available = inventory.getOrDefault(material, 0L);
+        if (amount <= available) {
+            inventory.put(material, available - amount);
+            return 0;
+        } else {
+            inventory.put(material, 0L);
+        }
+        
+        final Reaction reaction = reactions.get(material);
+        final long produced = reaction.material.amount;
+        final long needed = amount - available;
+        final long runs = (long) Math.ceil((double) needed / produced);
+        if (needed < produced * runs) {
+            inventory.merge(material, produced * runs - needed, Long::sum);
+        }
+        return reaction.reactants.stream()
+            .mapToLong(r -> oreNeededFor(r.name, r.amount * runs, reactions, inventory))
+            .sum();
+    }
+    
+    @Override
+    @Samples({
+        @Sample(method = "part1", input = TEST1, expected = "31"),
+        @Sample(method = "part1", input = TEST2, expected = "165"),
+        @Sample(method = "part1", input = TEST3, expected = "13312"),
+        @Sample(method = "part1", input = TEST4, expected = "180697"),
+        @Sample(method = "part1", input = TEST5, expected = "2210736"),
+        @Sample(method = "part2", input = TEST3, expected = "82892753"),
+        @Sample(method = "part2", input = TEST4, expected = "5586022"),
+        @Sample(method = "part2", input = TEST5, expected = "460664"),
+    })
+    public void samples() {}
+
+    public static void main(final String[] args) throws Exception {
+        AoC2019_14.create().run();
+    }
+
+    private static final String TEST1 = """
+            10 ORE => 10 A
+            1 ORE => 1 B
+            7 A, 1 B => 1 C
+            7 A, 1 C => 1 D
+            7 A, 1 D => 1 E
+            7 A, 1 E => 1 FUEL
+            """;
+    private static final String TEST2 = """
+            9 ORE => 2 A
+            8 ORE => 3 B
+            7 ORE => 5 C
+            3 A, 4 B => 1 AB
+            5 B, 7 C => 1 BC
+            4 C, 1 A => 1 CA
+            2 AB, 3 BC, 4 CA => 1 FUEL
+            """;
+    private static final String TEST3 = """
+            157 ORE => 5 NZVS
+            165 ORE => 6 DCFZ
+            44 XJWVT, 5 KHKGT, 1 QDVJ, 29 NZVS, 9 GPVTF, 48 HKGWZ => 1 FUEL
+            12 HKGWZ, 1 GPVTF, 8 PSHF => 9 QDVJ
+            179 ORE => 7 PSHF
+            177 ORE => 5 HKGWZ
+            7 DCFZ, 7 PSHF => 2 XJWVT
+            165 ORE => 2 GPVTF
+            3 DCFZ, 7 NZVS, 5 HKGWZ, 10 PSHF => 8 KHKGT
+            """;
+    private static final String TEST4 = """
+            2 VPVL, 7 FWMGM, 2 CXFTF, 11 MNCFX => 1 STKFG
+            17 NVRVD, 3 JNWZP => 8 VPVL
+            53 STKFG, 6 MNCFX, 46 VJHF, 81 HVMC, 68 CXFTF, 25 GNMV => 1 FUEL
+            22 VJHF, 37 MNCFX => 5 FWMGM
+            139 ORE => 4 NVRVD
+            144 ORE => 7 JNWZP
+            5 MNCFX, 7 RFSQX, 2 FWMGM, 2 VPVL, 19 CXFTF => 3 HVMC
+            5 VJHF, 7 MNCFX, 9 VPVL, 37 CXFTF => 6 GNMV
+            145 ORE => 6 MNCFX
+            1 NVRVD => 8 CXFTF
+            1 VJHF, 6 MNCFX => 4 RFSQX
+            176 ORE => 6 VJHF
+            """;
+    private static final String TEST5 = """
+            171 ORE => 8 CNZTR
+            7 ZLQW, 3 BMBT, 9 XCVML, 26 XMNCP, 1 WPTQ, 2 MZWV, 1 RJRHP => 4 PLWSL
+            114 ORE => 4 BHXH
+            14 VRPVC => 6 BMBT
+            6 BHXH, 18 KTJDG, 12 WPTQ, 7 PLWSL, 31 FHTLT, 37 ZDVW => 1 FUEL
+            6 WPTQ, 2 BMBT, 8 ZLQW, 18 KTJDG, 1 XMNCP, 6 MZWV, 1 RJRHP => 6 FHTLT
+            15 XDBXC, 2 LTCX, 1 VRPVC => 6 ZLQW
+            13 WPTQ, 10 LTCX, 3 RJRHP, 14 XMNCP, 2 MZWV, 1 ZLQW => 1 ZDVW
+            5 BMBT => 4 WPTQ
+            189 ORE => 9 KTJDG
+            1 MZWV, 17 XDBXC, 3 XCVML => 2 XMNCP
+            12 VRPVC, 27 CNZTR => 2 XDBXC
+            15 KTJDG, 12 BHXH => 5 XCVML
+            3 BHXH, 2 VRPVC => 7 MZWV
+            121 ORE => 7 VRPVC
+            7 XCVML => 6 RJRHP
+            5 BHXH, 4 VRPVC => 5 LTCX
+            """;
+    
+    record Material(String name, int amount) {
+        
+        public static Material fromString(final String string) {
+            final StringSplit splitR = StringOps.splitOnce(string, " ");
+            return new Material(splitR.right(), Integer.parseInt(splitR.left()));
+        }
+    }
+    
+    record Reaction(Material material, Set<Material> reactants) {
+        
+        public static Reaction fromString(final String string) {
+           final StringSplit split = StringOps.splitOnce(string, " => ");
+           final Material target = Material.fromString(split.right());
+           final Set<Material> reactants = Arrays.stream(split.left().split(", "))
+               .map(Material::fromString)
+               .collect(toSet());
+           return new Reaction(target, reactants);
+        }
+    }
+}
\ No newline at end of file