The -14 & #1 stipulation means: retract 14 moves and than mate in 1.
Defensive Retractor: In Defensive Retractors, White and Black retract (take back) a given number of moves (-n moves), in order to reach a position in which a forward stipulation (e.g. #1, s#1) is met. Given a choice, Black will retract those moves that avoid or delay White’s goal. Unless otherwise stated, Black may defend by mating White through a forward move, if such an opportunity exists after one of Black’s retractions.
The different kinds of Defensive Retractors only differ in the way uncaptures are handled, of course only legal uncaptures are allowed. In Proca Retractors the retracting side decides, if and what man was uncaptured.
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). Captures on the rebirth square are allowed in Anti-Circe Calvet and not allowed in Anti-Circe Cheylan. Game array squares are determined as in Circe: R, B & S go to the square of the same colour as the capture; Ps stay on the file of capture; fairy pieces go to the promotion square of the file of capture.
Anti-Circe without FD (explanation by the author): the abbreviation FD means Forward Defence. Should Black be able to reach the aim of the play forward (#1, s#1) earlier than White the w attack is refuted. Sometimes such Forward Defences are, like here, unavoidable in a scheme. In those cases it´s a valid convention that the author – as it is done here – expressively excludes a FD already in the stipulation of a defensive retractor.
No.1496Paul Rãican &
Klaus Wenda Romania / Austria original – 13.04.2020
Decoy of bKa6 to d8 in 4 steps and bQc6 to a8 (critical move)
The FD ...8.Kf2-g3 Rh3-h2/Rh1-h2+ 9.Bh5-e2
Rd1-d2+ & fw. 1.Qg2#/Qf3# is to exclude.
WR 2-10
Remarks:
KK mates on b6 must be avoided, thus wBf1
which can uncapture anywhere is too strong,
+bPa2 is necessary to close the a-line to prevent a mate
1.Ke1:Rf1(Ke1) Rf2-f1+ 2.Kd2:Pc2(Ke1)Rf1-f2+
3.Ke2-d2 Pd4-d3+ 4.Ke1-e2 Rf2-f1+ 5.Ke1:Re2 Rd2-e2+
6.Ke2:Rf1 Qa8-c6+ 7.Ke1-e2 Qh8-a8+ 8.Kc6:Bb7(Ke1)
Bc8-b7+ 9.Be2-f3 & fw. 1.Pg7:Qh8=R(Ra1)# (bRf1 is pinned).
A similar cook starts with 1.Ke2:Bf2 Pd4-d3+ 2.Ke1-e2 Bg1-f2+
The 11-mover starting with...Kg2:Rh2(Ke1) Qa8-c6+
is tested with Pacemaker (G1,2) (Authors)
No.1496.2Paul Rãican &
Klaus Wenda Romania / Austria version of No.1496 – 14.10.2020
