[Retros] Andernach 2007

[Joost de Heer]

Theme for the composition tourney in Andernach was Masand:

1) When a piece moves, and delivers a direct check, all other pieces 
(except kings [note JdH: But see the first prize!]) that are attacked by 
this piece change colour.
2) It's possible to defend against a check by a Masand-colouring. The 
colouring is part of the move, so legality is only tested after all 
colouring is done.
3) When castling, the rook has 'Masand-power'. Castling is allowed with 
a rook on h1/a1/h8/a8 which has been 'Masand-born'.

The problems:

Dirk Borst
1st prize Andernach 2007
2k2r2/pppbs1pp/1s1p2p1/Pq2p3/8/6P1/1PPPP1PP/1SBQKBSR (15+14)
+---+---+---+---+---+---+---+---+

|   | . |*K | . |   |*R |   | . |

+---+---+---+---+---+---+---+---+

|*P |*P |*P |*B |*S |   |*P |*P |

+---+---+---+---+---+---+---+---+

|   |*S |   |*P |   | . |*P | . |

+---+---+---+---+---+---+---+---+

| P |*Q | . |   |*P |   | . |   |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |   | P |   |

+---+---+---+---+---+---+---+---+

|   | P | P | P | P | . | P | P |

+---+---+---+---+---+---+---+---+

| . | S | B | Q | K | B | S | R |

+---+---+---+---+---+---+---+---+
SPG 13.5 Masand RI

Michel Caillaud
2nd prize Andernach 2007
rsbqkbsr/ppp3pp/3p4/8/5p1P/4P3/PPPP1P1P/RSBQKBSR (16+15)
+---+---+---+---+---+---+---+---+

|*R |*S |*B |*Q |*K |*B |*S |*R |

+---+---+---+---+---+---+---+---+

|*P |*P |*P |   | . |   |*P |*P |

+---+---+---+---+---+---+---+---+

|   | . |   |*P |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   |*P |   | P |

+---+---+---+---+---+---+---+---+

| . |   | . |   | P |   | . |   |

+---+---+---+---+---+---+---+---+

| P | P | P | P |   | P |   | P |

+---+---+---+---+---+---+---+---+

| R | S | B | Q | K | B | S | R |

+---+---+---+---+---+---+---+---+
SPG 11.0 Masand

Michel Caillaud
3rd prize Andernach 2007
rs1qk1sr/pbppp2p/1p1B4/8/4Pp2/2P4S/PPP2PPP/RSbQKB1R (16+15)
+---+---+---+---+---+---+---+---+

|*R |*S |   |*Q |*K | . |*S |*R |

+---+---+---+---+---+---+---+---+

|*P |*B |*P |*P |*P |   | . |*P |

+---+---+---+---+---+---+---+---+

|   |*P |   | B |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

|   | . |   | . | P |*P |   | . |

+---+---+---+---+---+---+---+---+

| . |   | P |   | . |   | . | S |

+---+---+---+---+---+---+---+---+

| P | P | P | . |   | P | P | P |

+---+---+---+---+---+---+---+---+

| R | S |*B | Q | K | B | . | R |

+---+---+---+---+---+---+---+---+
SPG 13.5 Masand

Joost de Heer
4th prize Andernach 2007 (version)
1s1qkbsr/1pp1pppp/1p1p4/8/S5bP/6PS/PPPPPPB1/R1BQ1RK1 (16+15)
+---+---+---+---+---+---+---+---+

|   |*S |   |*Q |*K |*B |*S |*R |

+---+---+---+---+---+---+---+---+

| . |*P |*P |   |*P |*P |*P |*P |

+---+---+---+---+---+---+---+---+

|   |*P |   |*P |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

| S | . |   | . |   | . |*B | P |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |   | P | S |

+---+---+---+---+---+---+---+---+

| P | P | P | P | P | P | B | . |

+---+---+---+---+---+---+---+---+

| R |   | B | Q | . | R | K |   |

+---+---+---+---+---+---+---+---+
SPG 10.5 Masand

Marco Bonavoglia
5th prize Andernach 2007
8/8/8/6Q1/8/5Q2/5QQQ/5KQk (7+1)
+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |   | Q |   |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . | Q | . |   |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   | Q | Q | Q |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . | K | Q |*K |

+---+---+---+---+---+---+---+---+
Last move? (Masand)

Michel Caillaud
6th prize Andernach 2007
rsbqkb1r/ppp1pp1p/5p2/3p4/8/8/PPPPPPPP/RSBQKBSR (16+15)
+---+---+---+---+---+---+---+---+

|*R |*S |*B |*Q |*K |*B |   |*R |

+---+---+---+---+---+---+---+---+

|*P |*P |*P |   |*P |*P | . |*P |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   |*P |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |*P | . |   | . |   |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

| P | P | P | P | P | P | P | P |

+---+---+---+---+---+---+---+---+

| R | S | B | Q | K | B | S | R |

+---+---+---+---+---+---+---+---+
SPG 6.5 Masand