diff --git a/src/storm/modelchecker/abstraction/GameBasedMdpModelChecker.cpp b/src/storm/modelchecker/abstraction/GameBasedMdpModelChecker.cpp
index 2c10f2f2d..43df463ae 100644
--- a/src/storm/modelchecker/abstraction/GameBasedMdpModelChecker.cpp
+++ b/src/storm/modelchecker/abstraction/GameBasedMdpModelChecker.cpp
@@ -410,11 +410,11 @@ namespace storm {
             storm::storage::SparseMatrix<ValueType> submatrix = transitionMatrix.getSubmatrix(true, player2MaybeStates, maybeStates);
             std::vector<ValueType> b = transitionMatrix.getConstrainedRowGroupSumVector(player2MaybeStates, maybeStates);
             
-            auto multiplier = storm::solver::MultiplierFactory<ValueType>().create(env, submatrix);
-            multiplier->repeatedMultiplyAndReduce(env, goal.direction(), subresult, &b, stepBound);
-
-            
-            env.
+//            auto multiplier = storm::solver::MultiplierFactory<ValueType>().create(env, submatrix);
+//            multiplier->repeatedMultiplyAndReduce(env, goal.direction(), subresult, &b, stepBound);
+//
+//
+//            env.
         }
         
         template<storm::dd::DdType Type, typename ModelType>
diff --git a/src/storm/solver/GameSolver.cpp b/src/storm/solver/GameSolver.cpp
index 0710cc9f2..bb27cb4fa 100644
--- a/src/storm/solver/GameSolver.cpp
+++ b/src/storm/solver/GameSolver.cpp
@@ -99,6 +99,16 @@ namespace storm {
             // Intentionally left empty.
         }
         
+        template<typename ValueType>
+        void GameSolver<ValueType>::setHasUniqueSolution(bool value) {
+            this->uniqueSolution = value;
+        }
+        
+        template<typename ValueType>
+        bool GameSolver<ValueType>::hasUniqueSolution() const {
+            return this->uniqueSolution;
+        }
+        
         template<typename ValueType>
         GameSolverFactory<ValueType>::GameSolverFactory() {
             // Intentionally left empty.
diff --git a/src/storm/solver/NativeMultiplier.cpp b/src/storm/solver/NativeMultiplier.cpp
index 13b27c617..7dd2457df 100644
--- a/src/storm/solver/NativeMultiplier.cpp
+++ b/src/storm/solver/NativeMultiplier.cpp
@@ -97,7 +97,6 @@ namespace storm {
             }
         }
 
-
         template<typename ValueType>
         void NativeMultiplier<ValueType>::multAdd(std::vector<ValueType> const& x, std::vector<ValueType> const* b, std::vector<ValueType>& result) const {
             this->matrix.multiplyWithVector(x, result, b);
diff --git a/src/storm/solver/StandardGameSolver.cpp b/src/storm/solver/StandardGameSolver.cpp
index 07512b23d..4d4cfd03c 100644
--- a/src/storm/solver/StandardGameSolver.cpp
+++ b/src/storm/solver/StandardGameSolver.cpp
@@ -240,7 +240,7 @@ namespace storm {
 
             Status status = Status::InProgress;
             while (status == Status::InProgress) {
-                multiplyAndReduce(env, player1Dir, player2Dir, *currentX, &b, *multiplierPlayer2Matrix, reducedPlayer2Result, *newX, trackSchedulersInValueIteration ? &this->getPlayer1SchedulerChoices() : nullptr, trackSchedulersInValueIteration ? &this->getPlayer2SchedulerChoices() : nullptr);
+                multiplyAndReduce(env, player1Dir, player2Dir, *currentX, &b, *multiplierPlayer2Matrix, reducedPlayer2Result, *newX, trackSchedulersInValueIteration ? &this->player1SchedulerChoices.get() : nullptr, trackSchedulersInValueIteration ? &this->player2SchedulerChoices.get() : nullptr);
 
                 // Determine whether the method converged.
                 if (storm::utility::vector::equalModuloPrecision<ValueType>(*currentX, *newX, precision, relative)) {
diff --git a/src/storm/storage/SparseMatrix.h b/src/storm/storage/SparseMatrix.h
index 1ec88e34e..c6b51b981 100644
--- a/src/storm/storage/SparseMatrix.h
+++ b/src/storm/storage/SparseMatrix.h
@@ -851,7 +851,9 @@ namespace storm {
              * @param vector The vector with which to multiply the matrix.
              * @param summand If given, this summand will be added to the result of the multiplication.
              * @param result The vector that is supposed to hold the result of the multiplication after the operation.
-             * @param choices If given, the choices made in the reduction process will be written to this vector.
+             * @param choices If given, the choices made in the reduction process will be written to this vector. Note
+             * that if the direction is maximize, the choice for a row group is only updated if the value obtained with
+             * the 'new' choice has a value strictly better (wrt. to the optimization direction) value.
              * @return The resulting vector the content of the given result vector.
              */
             void multiplyAndReduce(storm::solver::OptimizationDirection const& dir, std::vector<uint64_t> const& rowGroupIndices, std::vector<ValueType> const& vector, std::vector<ValueType> const* summand, std::vector<ValueType>& result, std::vector<uint_fast64_t>* choices) const;