MESON Chess Problem Database
Problem Display
PID: 45412 (7N/1R4pq/2Bnp1Q1/p1R5/5k2/B6P/P3pPp1/1KN4r w - - 0 1)
Hirschenson, Aaron
4th Place, 2. International Team (Friendship) Match, 1967-1970
#2
11 + 9
| 3841 | The Art of Israeli Chess Composition | 1983 |
SOLUTION
- SOUND
- Sets
- 1...Qxg6+
- 2.Sxg6#
- 1...Qg8
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...Qxh3
- 2.Qg5#
- 1...Qh5
- 2.Qg3#
- 1...Qh6
- 2.Qg3#
- 2.Qg4#
- 1...Qxh8
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...Rxc1+
- 2.Bxc1#
- 1...Rh2
- 2.Sxe2#
- 2.Sd3#
- 1...Rxh3
- 2.Sxe2#
- 1...Sc4
- 2.Rf7#
- 1...Se4
- 2.Qg4#
- 1...Sb5
- 2.Rf7#
- 1...Sf5
- 2.Qg4#
- 1...Sf7
- 2.Rxf7#
- 1...Sc8
- 2.Rf7#
- 1...e1S
- 2.Se2#
- 1...e1B
- 2.Se2#
- 2.Sd3#
- 1...g1S
- 2.Sd3#
- 1...g1B
- 2.Sxe2#
- 2.Sd3#
- 1...Qxg6+
- Tries
- 1.Kb2?
- threat
- 2.Sxe2#
- 2.Sd3#
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...Qxg6
- 2.Sxe2#
- 2.Sxg6#
- 1...Qxh3
- 2.Sxe2#
- 2.Qg5#
- 1...Rxc1
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...Rxh3
- 2.Sxe2#
- 2.Qg5#
- 1...Se4
- 2.Qg4#
- 1...e1Q
- 2.Sd3#
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...e1S
- 2.Se2#
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...e1B
- 2.Se2#
- 2.Sd3#
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...e1R
- 2.Sd3#
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...g1Q
- 2.Sxe2#
- 2.Sd3#
- 1...g1S
- 2.Sd3#
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...g1R
- 2.Sxe2#
- 2.Sd3#
- 1...Qh4
- 2.Sxe2#
- 2.Sd3#
- 1...Qh5
- 2.Sd3#
- 2.Qg3#
- 1...Qh6
- 2.Sxe2#
- 2.Sd3#
- 2.Qg3#
- 2.Qg4#
- 1...Rd1
- 2.Sxe2#
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...Re1
- 2.Sd3#
- 2.Qg3#
- 2.Qg4#
- 2.Qg5#
- 1...Sf5
- 2.Sxe2#
- 2.Sd3#
- 2.Qg4#
- 1...Sf7
- 2.Sxe2#
- 2.Sd3#
- 2.Rxf7#
- 2.Qg3#
- 2.Qg4#
- 1...e5
- 2.Sxe2#
- 2.Sd3#
- 2.Qg4#
- 1...Sc4+!
- threat
- 1.Kc2?
- threat
- 2.Sxe2#
- 2.Sd3#
- 1...Qxg6+
- 2.Sxg6#
- 1...Rxc1+
- 2.Bxc1#
- 1...Qxh3
- 2.Sxe2#
- 2.Qg5#
- 1...Rxh3
- 2.Sxe2#
- 1...Se4
- 2.Qg4#
- 1...e1Q
- 2.Sd3#
- 1...e1B
- 2.Se2#
- 2.Sd3#
- 1...e1R
- 2.Sd3#
- 1...g1S
- 2.Sd3#
- 1...Qh5
- 2.Sd3#
- 2.Qg3#
- 1...Rd1
- 2.Sxe2#
- 1...Re1
- 2.Sd3#
- 1...e1S+!
- threat
- 1.Rf5+?
- 1...exf5
- 2.Bxd6#
- 2.Qg3#
- 1...Sxf5!
- 1...exf5
- 1.Rb4+?
- 1...Sc4
- 2.Rbxc4#
- 1...Se4
- 2.Qg3#
- 2.Qg4#
- 1...axb4!
- 1...Sc4
- 1.Rf7+?
- 1...Sf5
- 2.Qg3#
- 2.Qg4#
- 1...Sxf7!
- 1...Sf5
- 1.Kb2?
- Keys
- 1.Rb3!
- threat
- 2.Rf3#
- 1...Qxg6+
- 2.Sxg6#
- 1...Rxc1+
- 2.Bxc1#
- 1...Qxh3
- 2.Qg5#
- 1...Rxh3
- 2.Sxe2#
- 1...e1S
- 2.Se2#
- 1...g1S
- 2.Sd3#
- 1...Qh5
- 2.Qg3#
- 1...Se4
- 2.Qg4#
- threat
- 1.Rb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- Q(i);CHECK,XQ(I)::S(K),XQ(i)
- Q(i);N_PINQ(I),XP(F)::QAB1(I)
- Q(i);N_PINQ(I)::QAB1(I)
- R(a);CHECK,OGATE,XS(B)::B(E),XR(a)
- R(a);N_PINS(B),XP(F)::S(B),XP(b)
- S(f);N_GUARD::R(J)
- S(f);N_PINQ(I)::QAR1(I)
- S(f);N_GUARD::R(J),XS(f)
- P(b);N_PINS(B)::S(B)
- P(c);N_PINS(B)::S(B)
- Tries
- Try
- K(A);N_SPINQ(I),N_SPINS(B),P-FLIGHT
- Threat
- DUALS(5)
- Vars
- S(f);::QAR1(I)
- Refutation
- S(f);CHECK
- Try
- K(A);N_SPINS(B),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(i);CHECK,XQ(I)::S(K),XQ(i)
- R(a);CHECK,OGATE,XS(B)::B(E),XR(a)
- R(a);XP(F)::S(B),XP(b)
- S(f);N_PINQ(I)::QAR1(I)
- P(b);::S(B)
- P(c);::S(B)
- R(a);::S(B),XP(b)
- R(a);::S(B)
- Refutation
- P(b);CHECK
- Try
- R(G);CHECK,N_SPINQ(I)
- Refutation
- S(f);XR(G)
- Try
- R(J);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::R(J),XS(f)
- Refutation
- P(e);XR(J)
- Try
- R(J);CHECK
- Refutation
- S(f);XR(J)
- Try
- Actual
- R(J);
- Threat
- R1(J)
- Vars
- Q(i);CHECK,XQ(I)::S(K),XQ(i)
- R(a);CHECK,OGATE,XS(B)::B(E),XR(a)
- Q(i);N_PINQ(I),XP(F)::QAB1(I)
- R(a);N_PINS(B),XP(F)::S(B),XP(b)
- P(b);N_PINS(B)::S(B)
- P(c);N_PINS(B)::S(B)
- Q(i);N_PINQ(I)::QAB1(I)
- S(f);N_PINQ(I)::QAR1(I)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).