Search This Blog

Hard River Crossing Logic Puzzle

Hard River Crossing Logic Puzzle - 28 November

You must have heard of so many river crossing riddles however this one is a bit tricky one. We have a dysfunctional family on one side of the river which includes mom and 2 daughters, dad and 2 sons, a maid and a dog. Like usual, there is a boat that can hold only two persons at a time (dog counts as one person as well). Obviously, the kids can’t operate the boat and we need an adult for that task.

Here comes the difficulties. The maid must remain with the dog so she can control it or it will head up for a violent biting. The dad cannot be left with the daughters without mom and nor can the mother be left alone with the sons without dad.

Can you help them cross the river?

For Solution : Click Here


  1. 1. Dad crosses over with son. Dad returns.
    2. Mom crosses over with daughter. Mom returns.
    3. Dad crosses over with other son. Dad returns.
    4. Mom crosses over with other daughter. Mom returns.
    5. Dad crosses over with Mom. Dad returns.
    6. Maid crosses over with Dad. Mom returns.
    7. Dad & Mom cross over.

    1. At 6th step, the maid crosses over with the dog! Mom returns!

    2. The first step is already incorrect

    3. The first step is already incorrect

  2. Dear Marshall did the dog swim back.

  3. maid + dog --> dog stays
    maid returns
    maid + son1 --> son1 stays
    maid + dog returns
    dad + son2 --> son 1+ son2 stays
    dad returns
    mom + dad ---> dad + son1 + son2 stays
    mom returns
    mom + daughter1 --> daughter1 + son1 +son2 stays
    dad + mom returns

    mom + daughter2 ---> daughter1 + daughter2 + son1 + son2 stay
    mom returns
    mom + father --> d1 + d2 + s1+ mom + father
    son2 returns
    maid + dog ---> d1 + d2 + mom + son1 + maid+dog
    father returns
    father + son2 --> s1 + s2 + d1 +d2+father+mom+maid+dog


    1. The dad cannot be left with the daughters without mom and nor can the mother be left alone with the sons without dad.

    2. This is wrong, Mom can't stay with son

    3. This is wrong, Mom can't stay with son

  4. I did maid and the dog maid returns
    maid and girl 1 maid and dog returns
    mom and girl 2 mom returns
    dad and son 1 dad returns
    dad and son 2 dad returns
    mom and dad dad returns
    maid and dad maid returns
    maid and dog no one returns because they are all over on the other side now!!!!!!! :D

    1. When maid is going with dad where is the dog?
      Maid has to stay with dog.
      Your answer is wrong.

  5. Dad+mom+son1+son2+dau1+dau2----Maid+dog----dog stays (maid return)
    Dad+son2+mom+dau1+dau2----Maid+son1----son1 styas(maid & dog return)
    Maid+dog+mom+dau1+dau2---Dad+son2----son1+son2 stays(dad return)
    Maid+dog+dau1+dau2----Mom+dad----son1+son2+dad stays(mom return)
    Mom+dau1+dau2---Maid+dog----son1+son2+maid+dog styas(dad return)
    Dau1+dau2---Mom+dad---- son1+son2+maid+dog+dad stays
    Dau2---Mom+dau1--- son1+son2+dad+mom+dau1 stays
    Dod--Maid+dau2---son1+son2+dad+dau1+dau2+mom stays
    0---Maid+dog--- task completed.

  6. A side of river -----> in boat (x returns) : B side of river
    M,S,D,D,m,d -----> F,S (F returns) : S
    M,S,,D,m,d -----> F,D (F returns) : S,D
    F,S,m,d -----> M,D (M returns) ; S,D,D
    S,m,d -----> F,M (F returns) : S,D,D,M
    F,S -----> m,d (M returns) : S,D,D,m,d
    S -----> F,M (F returns) : S,D,D,m,d,M
    ------> F,S (no one retruns) : S,D,D,m,d,M,F,S

  7. The solution given with question is wrong. The dog crosses over to side B in both 6th and second last step without returning back!!

    1. in 6th step father returns alone , and not with the house maid leaving dog alone.
      moreover in 8th line ,instead of daughter it should be dog,else the solution is correct. may be typing mistake

  8. 1) maid goes with dog.
    2) maid comes back alone.
    3) maid takes one of son and takes back the dog.
    4) dad goes with 2nd son and comes back alone.
    5) dad takes 1 daughter and comes back with 1 son.
    6) mother takes 2nd daughter and comes back with

    2nd son.
    7) dad and mother goes. dad comes back alone.
    8) maid goes with dog and mom comes back.
    9) mom takes 1 son and comes back.
    10) mom takes 2nd son and comes back.
    11) both hubby and wife goes.

  9. 1. Maid and dog go first - maid leaves the dog
    2. Dad and maid - maid left
    3. Dad and 1st son - son left
    4. Dad and 2nd son - son left
    5. Dad and mother - dad left
    6. Mother and 1st daughter - daughter left and Dad and Mom come back
    7. Mother and 2nd dughter
    8. Mother and Dad

  10. Let the housemaid and Dog go to corner B first and housemaid returns back to corner A.

    Next, the housemaid and the first son go to B and she comes back along with the dog.

    Now the father and the second son go to B and father comes back.

    Mother and Father go to B and the mother comes back.

    Housemaid and Dog go to B and the father comes back.

    Father and mother goes to B and Mother returns back.

    Mother and first daughter go to B, Housemaid and Dog return back.

    Housemaid and second Daughter go to B and Housemaid comes back.

    Housemaid and Dog goes to B.

  11. Father and son
    Father come back took another son
    Father come back and mother took daughter
    Mother com back and took another daughter
    Mother come back and maid and dog goes
    Son come back with boat and goes back with father
    Father come back and take away the mother.