Infiltrator Chess

This is an attempt by me to create a variant which would feel as if it had a piece drop mechanism while actually sort of not having such a mechanism.

Both of the introduced pieces potentially have long-range effects, so the result seems to me like a game with rather rich tactics.

Setup

satellite=infiltratorChessMain files=8 ranks=10 promoZone=2 promoChoice=IWRNBQ maxPromote=1 graphicsDir=/cgi-bin/fen2.php?s=50&p= squareSize=50 graphicsType= royal=K borders=0 firstRank=1 useMarkers=1 rimColor=#606060 darkShade=#a8a8a8 lightShade=#cccccc coordColor=#a0a0a0 symmetry=none pawn:P:ifmnDfmWfceF:pawn:a3,b3,c3,d3,e3,f3,g3,h3,,a8,b8,c8,d8,e8,f8,g8,h8 knight:N:N:knight:b2,g2,,b9,g9 bishop:B::bishop:c2,f2,,c9,f9 rook:R::rook:a2,h2,,a9,h9 queen:Q::queen:d2,,d9 king:K:KisO2:king:e2,,e9 infiltrator:I:Kmpa(mpfa)mfK:spider:a1,b1,g1,h1,,a10,b10,g10,h10 jumpalongwazir:W:(paf)W:sabretooth:c1,d1,e1,f1,,c10,d10,e10,f10

Pieces

Infiltrator

When not capturing, the Infiltrator moves on queen's lines, but unhindered by obstacles, so can hop over any number of pieces. The Infiltrator captures like a king. (Guesstimated piece value: 6 pawns)

Jumpalongwazir

The Jumpalongwazir moves and captures one square orthogonally. It can in addition jump any number of squares orthogonally (possibly with capture), provided all of the intermediate squares are occupied. (Guesstimated piece value: 2.5 pawns)

Pawn, Rook, Knight, Bishop, Queen, King

As in standard chess.

Rules

Pawns promote upon reaching the 9th rank (no deferral possible). They can promote to any piece proper of the game, except king.

All other rules as in standard chess. In particular, pawns' initial double step (subject to en passant capture) and castling work as would be expected.

Notes

The Jumpalongwazir (from my game Jump-a-long Chess) was selected as a "companion piece" to the Infiltrator. It most often fills quite a defensive role, but can now and then project far into the opponent's camp.

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By Martin Nilsson.

Last revised by Martin Nilsson.

Web page created: 2025-02-13. Web page last updated: 2025-02-13