diff --git a/corda/contracts/src/main/java/djmil/cordacheckers/contracts/GameCommand.java b/corda/contracts/src/main/java/djmil/cordacheckers/contracts/GameCommand.java
index ceeacfb..53d9442 100644
--- a/corda/contracts/src/main/java/djmil/cordacheckers/contracts/GameCommand.java
+++ b/corda/contracts/src/main/java/djmil/cordacheckers/contracts/GameCommand.java
@@ -73,10 +73,10 @@ public class GameCommand implements Command {
         return move;
     }
     
-
     /*
      * Session initiator/respondent
      */
+
     public MemberX500Name getCounterparty(StateAndRef<GameState> gameStateSar) {
         final GameState gameState = gameStateSar.getState().getContractState();
         return gameState.getOpponentName(getInitiator(gameState));
@@ -191,9 +191,7 @@ public class GameCommand implements Command {
 
         requireThat(inActors.containsAll(outActors) && outActors.containsAll(inActors), IN_OUT_PARTICIPANTS);
 
-        final var activePlayerName = getInitiator(inGameBoardState);
-        requireThat(inGameBoardState.getActivePlayerName().compareTo(activePlayerName) == 0, SURRENDER_ACTOR + "expected " +inGameBoardState.getActivePlayerName() +" actual " +activePlayerName);
-    
+        final var activePlayerName = getInitiator(inGameBoardState);    
         final var expectedWinnerName = inGameBoardState.getOpponentName(activePlayerName);
         requireThat(outGameResultState.getWinnerName().compareTo(expectedWinnerName) == 0,
             "Expected winner "+expectedWinnerName.getCommonName() +", proposed winner " +outGameResultState.getWinnerName().getCommonName());
@@ -237,7 +235,6 @@ public class GameCommand implements Command {
 
     static final String SURRENDER_INPUT_STATE = "SURRENDER command should have exactly one GameBoardState input state";
     static final String SURRENDER_OUTPUT_STATE = "SURRENDER command should have exactly one GameResultState output state";
-    static final String SURRENDER_ACTOR = "Only active player can SURRENDER";
 
     static final String MOVE_INPUT_STATE = "MOVE command should have exactly one GameBoardState input state";
     static final String MOVE_OUTPUT_STATE = "MOVE command should have exactly one GameBoardState output state";
diff --git a/corda/contracts/src/main/java/djmil/cordacheckers/contracts/UtxoLedgerTransactionUtil.java b/corda/contracts/src/main/java/djmil/cordacheckers/contracts/UtxoLedgerTransactionUtil.java
index 469014a..2553b1d 100644
--- a/corda/contracts/src/main/java/djmil/cordacheckers/contracts/UtxoLedgerTransactionUtil.java
+++ b/corda/contracts/src/main/java/djmil/cordacheckers/contracts/UtxoLedgerTransactionUtil.java
@@ -11,49 +11,25 @@ public class UtxoLedgerTransactionUtil {
         return single(utxoTrx.getCommands(clazz), clazz);
     }
 
-    // public static <T extends ContractState> StateAndRef<T> getSingleReferenceSar(UtxoLedgerTransaction utxoTrx, Class<T> clazz) {
-    //     return singleSar(utxoTrx.getReferenceStateAndRefs(clazz), clazz);
-    // }
-
     public static <T extends GameState> T getSingleInputState(UtxoLedgerTransaction utxoTrx, Class<T> clazz) {
         return single(utxoTrx.getInputStates(clazz), clazz);
     }
 
-    // public static <T extends ContractState> StateAndRef<T> getSingleInputSar(UtxoLedgerTransaction utxoTrx, Class<T> clazz) {
-    //     return singleSar(utxoTrx.getInputStateAndRefs(clazz), clazz);
-    // }
-
     public static <T extends GameState> T getSingleOutputState(UtxoLedgerTransaction utxoTrx, Class<T> clazz) {
         return single(utxoTrx.getOutputStates(clazz), clazz);
     }
 
-    // public static <T extends Command> Optional<T> getOptionalCommand(UtxoLedgerTransaction utxoTrx, Class<T> clazz) {
-    //     return optional(utxoTrx.getCommands(clazz), clazz);
-    // }
-
-    // public static <T extends ContractState> Optional<T> getOptionalReferenceState(UtxoLedgerTransaction utxoTrx, Class<T> clazz) {
-    //     return optional(utxoTrx.getReferenceStates(clazz), clazz);
-    // }
-
-    // public static <T extends ContractState> Optional<T> getOptionalInputState(UtxoLedgerTransaction utxoTrx, Class<T> clazz) {
-    //     return optional(utxoTrx.getInputStates(clazz), clazz);
-    // }
-
-    // public static <T extends ContractState> Optional<T> getOptionalOutputState(UtxoLedgerTransaction utxoTrx, Class<T> clazz) {
-    //     return optional(utxoTrx.getOutputStates(clazz), clazz);
-    // }
-
-    private static <T> Optional<T> optional(List<T> list, Class<T> clazz) {
-        return list
-            .stream()
-            .reduce((a, b) -> {throw new IllegalStateException(MULTIPLE_INSTANCES_OF +clazz.getName());});
-    }
-
     private static <T> T single(List<T> list, Class<T> clazz) {
         return optional(list, clazz)
             .orElseThrow( () -> new IllegalStateException(NO_INSTANCES_OF +clazz.getName()) );
     }
 
+    private static <T> Optional<T> optional(List<T> list, Class<T> clazz) {
+        return list
+            .stream()
+            .reduce((a, b) -> {throw new IllegalStateException(MULTIPLE_INSTANCES_OF +clazz.getName());});
+    }
+
     private static String MULTIPLE_INSTANCES_OF = "Multiple instances of ";
     private static String NO_INSTANCES_OF = "No instances of ";
 }