האיגוד לקומפוזיציה שחמטית בישראל
The Israel Chess Composition Society

Publications

Matches

Achievements

Composing

Solving

Beginners

About

Home

Hebrew

Aaron Hirschenson 65 Jubilee Tourney

StrateGems announces a jubilee tourney to celebrate Aaron’s 65th birthday.

Required are orthodox two-movers in two phases (set and solution, try and solution, twins) which show changed mates (or reciprocal changes), after a black piece random and correction moves. The “random” move can be any move whose nature is of a random move even if it is a specific single move. For example, in example 2 the move 1...Se2 in both set and solution can be regarded as a random move, and it is corrected by 1...Sfe6! Similarly, 1...Sb3 is of random nature and is corrected by 1...Sce6!

Send Entries to: aaron43@netvision.net.il or by mail to Aaron Hirschenson, 6 Nizana Street, Metar 85025 Israel.

First Pr. $100, Second Pr. $75 and Third Pr.$50.

Due date June 26th 2010.

Example 1: Aaron Hirschenson 1st Prize Mac P. Informal T. 2003 #2                          ( 12 + 7 )   Try:1.Re7? [zz] 1…[a] Be4~  2.Qe3#[A]                      1…[b] Bd5 2.Sxf5#[B]                        1...Rb5/c5/e5 2.Sxb5/Bxc5/Qxe5#    1...f4/Bb2/Bc3 2.Qxe4/Bxb2/dxc3# But: 1...Rd5! Solution:1.c5![zz]                                 1...[a]Be4~ 2.Sxf5#[B]                         1...[b] Bd5 2.Qd3# [A]   1...Rb5/Rxc5/f4/Bb2/Bc3    2.Sxb5/Bxc5/Qxe4/Bxb2/dxc3#

Example 2: Paz Einat 1st Place Israel-France Match 1983 #2                           ( 9 + 7 )   Set: 1...Se2 2.Qe5(A)# 1...Sfe6! 2.Qc6(B)#   Solution: 1.Sf3! 2.Rd4# 1...Se2 2.Se7 # 1...Sfe6 2.Sb6# 1...Sb3 2.Qe5(A) 1...Sce6! 2.Qc6(B)#