diff --git a/api/service/restclientsupport/puzzle_service.go b/api/service/restclientsupport/puzzle_service.go
index 96e9e7249..31190d085 100644
--- a/api/service/restclientsupport/puzzle_service.go
+++ b/api/service/restclientsupport/puzzle_service.go
@@ -3,10 +3,11 @@ package restclientsupport
 import (
 	"encoding/json"
 	"fmt"
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/harmony-one/harmony/internal/utils"
 	"net/http"
 	"strconv"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/harmony-one/harmony/internal/utils"
 )
 
 // Play triggers play method of puzzle smart contract.
@@ -32,7 +33,6 @@ func (s *Service) Play(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-
 	if err := s.CreateTransactionForPlayMethod(key, amountInt); err != nil {
 		utils.GetLogInstance().Error("puzzle-play, error", err)
 		json.NewEncoder(w).Encode(res)
@@ -68,3 +68,27 @@ func (s *Service) Payout(w http.ResponseWriter, r *http.Request) {
 	res.Success = true
 	json.NewEncoder(w).Encode(res)
 }
+
+// End triggers endGame of puzzle smart contract.
+func (s *Service) End(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "application/json")
+	address := r.FormValue("address")
+
+	fmt.Println("Payout: address", address)
+	res := &Response{
+		Success: false,
+	}
+
+	if s.CreateTransactionForPayoutMethod == nil {
+		json.NewEncoder(w).Encode(res)
+		return
+	}
+
+	if err := s.CreateTransactionForEndMethod(common.HexToAddress(address)); err != nil {
+		utils.GetLogInstance().Error("Payout error", err)
+		json.NewEncoder(w).Encode(res)
+		return
+	}
+	res.Success = true
+	json.NewEncoder(w).Encode(res)
+}
diff --git a/api/service/restclientsupport/service.go b/api/service/restclientsupport/service.go
index f97840939..1da77d868 100644
--- a/api/service/restclientsupport/service.go
+++ b/api/service/restclientsupport/service.go
@@ -37,6 +37,7 @@ type Service struct {
 	GetAccountBalance                func(common.Address) (*big.Int, error)
 	CreateTransactionForPlayMethod   func(string, int64) error
 	CreateTransactionForPayoutMethod func(common.Address, int, string) error
+	CreateTransactionForEndMethod    func(common.Address) error
 }
 
 // New returns new client support service.
@@ -46,7 +47,8 @@ func New(
 	CreateTransactionForPickWinner func() error,
 	CallFaucetContract func(common.Address) common.Hash, GetAccountBalance func(common.Address) (*big.Int, error),
 	CreateTransactionForPlayMethod func(string, int64) error,
-	CreateTransactionForPayoutMethod func(common.Address, int, string) error) *Service {
+	CreateTransactionForPayoutMethod func(common.Address, int, string) error,
+	CreateTransactionForEndMethod func(common.Address) error) *Service {
 	return &Service{
 		CreateTransactionForEnterMethod:  CreateTransactionForEnterMethod,
 		GetResult:                        GetResult,
@@ -55,6 +57,7 @@ func New(
 		GetAccountBalance:                GetAccountBalance,
 		CreateTransactionForPlayMethod:   CreateTransactionForPlayMethod,
 		CreateTransactionForPayoutMethod: CreateTransactionForPayoutMethod,
+		CreateTransactionForEndMethod:    CreateTransactionForEndMethod,
 	}
 }
 
@@ -106,6 +109,10 @@ func (s *Service) Run() *http.Server {
 	// Set up router for payout.
 	s.router.Path("/payout").Queries("address", "{[0-9A-Fa-fx]*?}", "level", "{[0-9]*?}", "sequence", "{[A-Za-z]*?}").HandlerFunc(s.Payout).Methods("GET")
 	s.router.Path("/payout").HandlerFunc(s.Payout)
+
+	// Set up router for endgame.
+	s.router.Path("/end").Queries("address", "{[0-9A-Fa-fx]*?}").HandlerFunc(s.End).Methods("GET")
+	s.router.Path("/end").HandlerFunc(s.End)
 	// Do serving now.
 	utils.GetLogInstance().Info("Listening on ", "port: ", Port)
 	server := &http.Server{Addr: addr, Handler: s.router}
diff --git a/node/puzzle_contract.go b/node/puzzle_contract.go
index 62cd2c610..e498efe18 100644
--- a/node/puzzle_contract.go
+++ b/node/puzzle_contract.go
@@ -18,8 +18,9 @@ import (
 
 // Constants for puzzle.
 const (
-	Play   = "play"
-	Payout = "payout"
+	Play    = "play"
+	Payout  = "payout"
+	EndGame = "endGame"
 )
 
 var OneEther = big.NewInt(params.Ether)
@@ -145,3 +146,49 @@ func (node *Node) CreateTransactionForPayoutMethod(address common.Address, level
 	utils.GetLogInstance().Error("Unable to call enter method", "error", err)
 	return err
 }
+
+// CreateTransactionForEndMethod generates transaction for endGame method and add it into pending tx list.
+func (node *Node) CreateTransactionForEndMethod(address common.Address) error {
+	var err error
+	toAddress := node.PuzzleContractAddress
+
+	abi, err := abi.JSON(strings.NewReader(contracts.PuzzleABI))
+	if err != nil {
+		utils.GetLogInstance().Error("Failed to generate staking contract's ABI", "error", err)
+		return err
+	}
+	// add params for address payable player, uint8 new_level, steps string
+	fmt.Println("EndGame: address", address)
+	bytesData, err := abi.Pack(EndGame, address)
+	if err != nil {
+		utils.GetLogInstance().Error("Failed to generate ABI function bytes data", "error", err)
+		return err
+	}
+
+	key := node.PuzzleManagerPrivateKey
+	if key == nil {
+		return fmt.Errorf("PuzzleManagerPrivateKey is nil")
+	}
+	nonce := node.GetNonceOfAddress(crypto.PubkeyToAddress(key.PublicKey))
+	Amount := big.NewInt(0)
+	tx := types.NewTransaction(
+		nonce,
+		toAddress,
+		node.NodeConfig.ShardID,
+		Amount,
+		params.TxGas*10,
+		nil,
+		bytesData,
+	)
+
+	if err != nil {
+		utils.GetLogInstance().Error("Failed to get private key", "error", err)
+		return err
+	}
+	if signedTx, err := types.SignTx(tx, types.HomesteadSigner{}, key); err == nil {
+		node.addPendingTransactions(types.Transactions{signedTx})
+		return nil
+	}
+	utils.GetLogInstance().Error("Unable to call enter method", "error", err)
+	return err
+}
diff --git a/node/service_setup.go b/node/service_setup.go
index ccf7523e5..7c112ee30 100644
--- a/node/service_setup.go
+++ b/node/service_setup.go
@@ -28,7 +28,7 @@ func (node *Node) setupForShardLeader() {
 	node.serviceManager.RegisterService(service.RestClientSupport, restclientsupport.New(
 		node.CreateTransactionForEnterMethod, node.GetResult,
 		node.CreateTransactionForPickWinner, node.CallFaucetContract, node.GetBalanceOfAddress,
-		node.CreateTransactionForPlayMethod, node.CreateTransactionForPayoutMethod))
+		node.CreateTransactionForPlayMethod, node.CreateTransactionForPayoutMethod, node.CreateTransactionForEndMethod))
 
 	// Register explorer service.
 	node.serviceManager.RegisterService(service.SupportExplorer, explorer.New(&node.SelfPeer, node.Consensus.GetNodeIDs, node.GetBalanceOfAddress))
@@ -70,7 +70,7 @@ func (node *Node) setupForBeaconLeader() {
 	node.serviceManager.RegisterService(service.RestClientSupport, restclientsupport.New(
 		node.CreateTransactionForEnterMethod, node.GetResult,
 		node.CreateTransactionForPickWinner, node.CallFaucetContract, node.GetBalanceOfAddress,
-		node.CreateTransactionForPlayMethod, node.CreateTransactionForPayoutMethod))
+		node.CreateTransactionForPlayMethod, node.CreateTransactionForPayoutMethod, node.CreateTransactionForEndMethod))
 	// Register randomness service
 	node.serviceManager.RegisterService(service.Randomness, randomness.New(node.DRand))
 	// Register explorer service.