Comparison

山川悟の詰将棋1 vs N'Back Butterfly

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

山川悟の詰将棋1

Engage with a collection of 50 Shogi puzzles, ranging from easy 3-move to challenging 9-move problems. Offers hints and allows you to resume from where you left off. A blog link is also provided.

Highlights
  • 50 Shogi puzzles
  • 3-move to 9-move challenges
  • Hints available
  • Resume progress
  • Sequential problem unlocking
  • Links to author's blog
Features
Read full description

ーー紹介ーー 詰パラモバイルで大活躍中の世阿弥さんこと山川悟さんの作品です。 やさしい3手詰から有段者も悩む9手詰まで全50作です。 スマホ上では難しい部類に入るかもしれませんが、ヒントもありますので頑張って下さい。 ※途中でアプリを落としても、続きからチャレンジできます。 山川さんのブログへのリンクもあります。 ーー詰パラモバイル管理人による詰め将棋級、段ーー 一週間で50問解けたら、スマホ詰め将棋初段を認定します。 ーー操作方法ーー 「詰将棋を解く」をタッチすると作品が表示されます。 攻方の駒をタッチすると選択状態になりますので、移動させたい箇所の盤上をやはりタッチします。 正解手ならば玉方が自動的に対応してくれます。不正解ならばその場で初手からやり直しになります。 右上に「電球マークが」があります。これをタッチするとヒントが1秒ほど見えますので、解答に窮したときタッチしてみてください。 なお問題は1番から順番にしかトライできません。 ーールールーー (1) 攻方は王手の連続で玉を詰ますこと (2) 攻方は最短最善手順で玉を詰ますこと (3) 玉方は最長最善手順を選んで逃げること (4) 攻方の持ち駒以外の駒は玉方が使用できる (5) 攻方は詰手順中の入手駒を使用できる (6) 他は全て指将棋のルールが適用される (6-1) 二歩を売ってはいけない (6-2) 打ち歩詰めは禁手(突き歩は可) (6-3) 行き場所の無い駒は打てない (6-4) 王手の千日手は不詰 (7) アプリ内でのこと (7-1) 同一局面王手があった時点で不正解 (7-2) 最終手にて、3手以上かけると不正解扱い ーー最後にーー 我々を楽しませてくれる、詰将棋作家さんたちに最大級の敬意と感謝を。

About

N'Back Butterfly

Enhance your cognitive abilities and combat forgetfulness with this application designed to improve working memory. It utilizes the scientifically recognized n-back task to train your brain's capacity for information recall and manipulation.

Highlights
  • Working memory improvement
  • N-back task training
  • Cognitive neuroscience assessment
  • Continuous performance task
Features
Read full description

Forget about forgetfulness! Improve your memory! Improve Working Memory using N'Back Butterfly. The n-back task is a continuous performance task that is commonly used as an assessment in cognitive neuroscience to measure a part of working memory. The n-back was introduced by Wayne Kirchner in 1958. [quoted from Wikipedia 2014-04-02]

Screenshots

山川悟の詰将棋14 screens
N'Back Butterfly2 screens

Verdict

The call

The clearest difference is ads: 山川悟の詰将棋1 at none against N'Back Butterfly's shown. 山川悟の詰将棋1 also leads on monetization model (free vs ad-supported) and iOS requirement (5.1.1 vs 15.6). N'Back Butterfly's advantage is update cadence (every 10 months vs every 21 months). On price, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

山川悟の詰将棋1 ships an update every 21 months, N'Back Butterfly every 10 months. The most recent releases landed on July 7, 2026 and August 31, 2026 respectively.

Scorecard4 real differences · 6 level
山川悟の詰将棋1 versus N'Back Butterfly: the parameters behind the verdict, then further details
Parameter山川悟の詰将棋1N'Back Butterfly
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews—100.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 21 monthsEvery 10 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS5.1.1 — better15.6
Further details — not scored
Size26 MB9 MB
Age rating4+4+
DeveloperKukiLaboYasuyoshi Ota

Customer experience

山川悟の詰将棋1

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

N'Back Butterfly

Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

山川悟の詰将棋1

No in-app purchases

None

N'Back Butterfly

No in-app purchases

Questions

Is 山川悟の詰将棋1 free?
山川悟の詰将棋1 is free to download, with no in-app purchases.
Is N'Back Butterfly free?
N'Back Butterfly is free to download, with no in-app purchases.
Do 山川悟の詰将棋1 or N'Back Butterfly have ads?
N'Back Butterfly shows ads; 山川悟の詰将棋1 does not.
Which is updated more often, 山川悟の詰将棋1 or N'Back Butterfly?
山川悟の詰将棋1 ships an update every 21 months, and N'Back Butterfly every 10 months. Most recently, 山川悟の詰将棋1 was updated on July 7, 2026 and N'Back Butterfly on August 31, 2026.

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