No.312,313 (PR)

No.312 by Paul Rãican – An interesting combination between two difficult themes! And one more PG-problem here! (JV)

No.313 by Paul Rãican – A nice Pser-miniature! Author also adds that this is a type of problems for TT9 Quartz. (JV)

Definitions:

Annan Chess: Units move normally except when they are standing one square directly in front of another unit of the same color, when they move with the power of the rear unit. In the starting position, all pawns (black & white) move with the power of the piece behind them, e.g. 1. Pc2xh7 (as bishop)

Anti-Circe: After a capture the capturing piece (Ks included) must immediately be removed to its game array square (necessarily vacant, else the capture is illegal). R, B & S go to the square of the same colour as the capture; Ps stay on the file of capture.

Pser: This is the original definition by its inventor, Dan Meinking: A parry series-mover differs from a standard series-mover prior to the last move as follows:

1. the series-side may give check during the series;
2. when checked, the idle-side must immediately parry the threat;
3. a parry-move may be helpful or defensive, depending on the problem-type;
4. after a check-and-parry, the series-side continues the series.

Every Pser problem combines two stipulations:

Part 1 – Pser, which indicates the special series play with participation of both sides according to the author’s definition;

Part 2 – the kind of problem, according to well known stipulations, which can show direct play (n#, n=, s#, s= r#, r=, etc), help play (h#, h=, h==, etc) or mixed play (hs#, hs=, hs= =, etc).

(For more explanations about Pser see IGM Petko A. Petkov article “The Wonderful (new genre) Parry Series“)

No.312 Paul Rãican Romania original-05.05.2013   PG 12,5       Annan Chess       (11+11) C-     Solution: (click to show/hide)     1.c2xh7 f7-g6 2.d2-d6 Kf7 3.Qb3 Kf7xb3 4.Sc3 g7-e6 5.Sd5 Bh6 6.d6xc8=Q! b7-d6 7.Qxb8+ a7-b7 8.a2xa8=S! Bxc1 9.Qa7 Bxb2 10.Sa8xd8 Bb2-a2 11.Sc6 bxc6 12.Qd4+ cxd5 13.Qd1+   S Ceriani-Frolkin & Q Phoenix-Pronkin. (Author)

No.313 Paul Rãican Romania original-05.05.2013   pser-h=7         Anti-Circe           (4+3)     Solution: (click to show/hide)     1.Qh8-h7 + g5-g6 2.Kg8-h8 3.h2-h1=R + Kb1-a1 4.Qh7-g7 + Sd7-f6 5.Qg7- d7 6.Qd7-d1 + Sa2-c1 7.Rh1-g1 g6-g7 =   C+ Popeye. (Author)