Blackjack vs. Spades
Comparing 2 standards across 21 specifications. 21 key differences identified.
Blackjack (21) is a casino banking game where players compete against the dealer to achieve a hand value closer to 21 without exceeding it (busting). Standard rules payout natural Blackjacks at 3:2, require dealers to stand on hard 17 (and often soft 17), allow doubling down on initial two-card totals, and offer 2:1 insurance against a dealer Ace.
Spades is a standard 4-player partnership trick-taking card game where Spades are permanently the trump suit. Players simultaneously bid the exact number of tricks they expect to win. Bidding Nil awards a +100 point bonus (or -100 penalty), while taking extra tricks beyond the bid accumulates 'bags', triggering a 100-point penalty for every 10 bags.
Specification Comparison Table
21 Parameters| Parameter / Spec | ||
|---|---|---|
|
Standard Shoe Size
|
6 to 8 decks (52 cards each) | — |
|
Natural Blackjack Payout
|
3:2 (Standard) vs 6:5 (Unfavorable) | — |
|
Card Values (2–10)
|
Face Value (2–10) | — |
|
Face Cards (J, Q, K)
|
10 points each | — |
|
Ace Value
|
1 or 11 (Soft Hand) | — |
|
Dealer Standing Rule
|
Stands on 17 (Soft 17 varies by table) | — |
|
Insurance Payout
|
2:1 against dealer Blackjack | — |
|
Double Down Option
|
Permitted on 2 cards (1 card dealt) | — |
|
Splitting Pairs
|
Permitted up to 3–4 hands | — |
|
Split Aces Restriction
|
1 card dealt per Ace (no re-split) | — |
|
Base House Edge
|
0.4% to 0.6% with Basic Strategy | — |
|
Total Players
|
— | 4 in 2 fixed partnerships |
|
Deck Size
|
— | 52 cards (13 dealt per player) |
|
Permanent Trump Suit
|
— | Spades (♠) always trumps other suits |
|
Rank of Cards
|
— | Ace (High) to 2 (Low) |
|
Standard Winning Score
|
— | 500 points |
|
Contract Trick Points
|
— | 10 points per bid trick won |
|
Overtrick (Bag) Points
|
— | 1 point per extra trick |
|
10-Bag Penalty
|
— | -100 points deducted at 10 bags |
|
Nil Bid Bonus / Penalty
|
— | +100 / -100 points (0 tricks won) |
|
Blind Nil Bonus / Penalty
|
— | +200 / -200 points (bid before looking) |