MESON Chess Problem Database
Problem Display
PID: 17020 (K3Q3/3p4/p4r2/1N1BB3/5R1n/4k3/1R1b1p2/2N5 w - - 0 1)
Hillel, Yezekhiel
1st Prize, Palestine Post & Mishmar, 1945-1946
#2
8 + 7
| 3841 | The Art of Israeli Chess Composition | 1983 |
| 3713 | Snap | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxf4
- 2.Bd4#
- 1...Rb6
- 2.Bd6#
- 1...Rc6
- 2.Bd6#
- 1...Rd6
- 2.Bxd6#
- 1...Be1
- 2.Re2#
- 1...Bc3
- 2.Re2#
- 1...Bb4
- 2.Re2#
- 1...Ba5
- 2.Re2#
- 1...Sf3
- 2.Re4#
- 1...Sf5
- 2.Rf3#
- 1...Rxf4
- Tries
- 1.Sa3?
- threat
- 2.Sc2#
- 2.Sc4#
- 1...Rxf4
- 2.Sc2#
- 1...f1Q
- 2.Sc2#
- 1...f1B
- 2.Sc2#
- 1...Rc6
- 2.Bd6#
- 1...Be1
- 2.Sc4#
- 2.Re2#
- 1...Bc3
- 2.Sc4#
- 2.Re2#
- 1...Bb4
- 2.Sc4#
- 2.Re2#
- 1...Ba5
- 2.Sc4#
- 2.Re2#
- 1...Bxc1!
- threat
- 1.Sd4?
- threat
- 2.Sc2#
- 2.Re4#
- 1...Rxf4
- 2.Sc2#
- 1...f1Q
- 2.Sc2#
- 1...f1S
- 2.Sc2#
- 1...f1B
- 2.Sc2#
- 1...f1R
- 2.Sc2#
- 1...Rc6
- 2.Bd6#
- 2.Re4#
- 1...Be1
- 2.Re2#
- 2.Re4#
- 1...Bc3
- 2.Re2#
- 2.Re4#
- 1...Bb4
- 2.Re2#
- 2.Re4#
- 1...Ba5
- 2.Re2#
- 2.Re4#
- 1...Bxc1!
- threat
- 1.Bc3+?
- 1...Re6
- 2.Bxd2#
- 1...Kxf4!
- 1...Re6
- 1.Rf3+?
- 1...Rxf3
- 2.Bh2#
- 2.Bg3#
- 2.Bd6#
- 2.Bc7#
- 2.Bb8#
- 1...Sxf3!
- 1...Rxf3
- 1.Rg4?
- threat
- 2.Bd4#
- 2.Bf4#
- 2.Bxf6#
- 1...axb5
- 2.Bd4#
- 2.Bxf6#
- 1...f1Q
- 2.Bd4#
- 1...f1S
- 2.Bd4#
- 1...f1B
- 2.Bd4#
- 1...f1R
- 2.Bd4#
- 1...Rf3
- 2.Bh2#
- 2.Bc3#
- 2.Bg3#
- 2.Bd4#
- 2.Bf4#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bg7#
- 2.Bb8#
- 2.Bh8#
- 2.Re4#
- 1...Rf4
- 2.Bd4#
- 2.Bxf4#
- 1...Rf5
- 2.Bd4#
- 2.Bf4#
- 1...Rb6
- 2.Bd4#
- 2.Bf4#
- 2.Bd6#
- 1...Rc6
- 2.Bd4#
- 2.Bf4#
- 2.Bd6#
- 1...Rd6
- 2.Bd4#
- 2.Bf4#
- 2.Bxd6#
- 1...Re6
- 2.Bd4#
- 2.Bf4#
- 1...Rg6
- 2.Bd4#
- 2.Bf4#
- 2.Bf6#
- 1...Rh6
- 2.Bd4#
- 2.Bf4#
- 2.Bf6#
- 1...Rf7
- 2.Bd4#
- 2.Bf4#
- 1...Rf8
- 2.Bd4#
- 2.Bf4#
- 1...Bc3
- 2.Bd4#
- 2.Bf4#
- 2.Re2#
- 1...Bb4
- 2.Bd4#
- 2.Bf4#
- 2.Re2#
- 1...Sf3
- 2.Bd4#
- 2.Bf4#
- 2.Re4#
- 1...Sf5
- 2.Bd4#
- 2.Bf4#
- 1...Sg6
- 2.Bd4#
- 2.Bf4#
- 1...Bxc1!
- threat
- 1.Rxh4?
- threat
- 2.Bd4#
- 2.Bf4#
- 2.Bxf6#
- 1...axb5
- 2.Bd4#
- 2.Bxf6#
- 1...f1Q
- 2.Bd4#
- 1...f1S
- 2.Bd4#
- 1...f1B
- 2.Bd4#
- 1...f1R
- 2.Bd4#
- 1...Rf3
- 2.Bh2#
- 2.Bc3#
- 2.Bg3#
- 2.Bd4#
- 2.Bf4#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bg7#
- 2.Bb8#
- 2.Bh8#
- 2.Re4#
- 1...Rf4
- 2.Bd4#
- 2.Bxf4#
- 1...Rf5
- 2.Bd4#
- 2.Bf4#
- 1...Rb6
- 2.Bd4#
- 2.Bf4#
- 2.Bd6#
- 2.Rh3#
- 1...Rc6
- 2.Bd4#
- 2.Bf4#
- 2.Bd6#
- 2.Rh3#
- 1...Rd6
- 2.Bd4#
- 2.Bf4#
- 2.Bxd6#
- 2.Rh3#
- 1...Re6
- 2.Bd4#
- 2.Bf4#
- 2.Rh3#
- 1...Rg6
- 2.Bd4#
- 2.Bf4#
- 2.Bf6#
- 1...Rh6
- 2.Bd4#
- 2.Bf4#
- 2.Bf6#
- 1...Rf7
- 2.Bd4#
- 2.Bf4#
- 1...Rf8
- 2.Bd4#
- 2.Bf4#
- 1...Bc3
- 2.Bd4#
- 2.Bf4#
- 2.Re2#
- 1...Bb4
- 2.Bd4#
- 2.Bf4#
- 2.Re2#
- 1...Bxc1!
- threat
- 1.Sa3?
- Keys
- 1.Qe7!
- threat
- 2.Qc5#
- 1...Rf8+
- 2.Bb8#
- 1...Rxf4
- 2.Bd4#
- 1...Bxc1
- 2.Qa3#
- 1...Rc6
- 2.Bd6#
- 1...Rd6
- 2.Bxd6#
- 1...Bc3
- 2.Re2#
- 1...Bb4
- 2.Re2#
- 1...Sf3
- 2.Re4#
- 1...Sf5
- 2.Rf3#
- 1...d6
- 2.Qa7#
- threat
- 1.Qe7!
Anticipated by 122170(1921)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- R(f);SBLOCK,XR(C)::QAR(H)+B(F),DCHECK
- R(f);N_GUARD::QAR(H)+B(F)
- R(f);N_GUARD::QAR(H)+B(F),XR(f)
- B(a);OGATE::R1(B)
- S(d);SBLOCK::R1(C)
- S(d);N_GUARD,S_CUTR(f)::R1(C)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(f);XR(C)::S(D)
- P(b);::S(D)
- R(f);N_GUARD::QAR(H)+B(F)
- Refutation
- B(a);XS(A)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(f);XR(C)::S(D)
- P(b);::S(D)
- Refutation
- B(a);XS(A)
- Try
- B(F);CHECK
- Vars
- R(f);P_SPINR(f)::B(F),XB(a)
- Refutation
- K(c);S_FLIGHT,XR(C)
- Try
- R(C);CHECK
- Refutation
- S(d);XR(C)
- Try
- R(C);
- Threat
- DUALS(3)
- Vars
- P(b);::QAR(H)+B(F),DCHECK
- Refutation
- B(a);XS(A)
- Try
- R(C);XS(d)
- Threat
- DUALS(3)
- Vars
- P(b);::QAR(H)+B(F),DCHECK
- Refutation
- B(a);XS(A)
- Try
- Actual
- Q(H);
- Threat
- QAB(H)
- Vars
- R(f);CHECK,N_GUARD::QAR(H)+B(F)
- R(f);SBLOCK,XR(C)::QAR(H)+B(F),DCHECK
- B(a);N_GUARD,XS(A)::QAR(H)
- R(f);N_GUARD::QAR(H)+B(F)
- R(f);N_GUARD::QAR(H)+B(F),XR(f)
- B(a);OGATE::R1(B)
- S(d);SBLOCK::R1(C)
- S(d);N_GUARD,S_CUTR(f)::R1(C)
- P(g);OGATE::QAB(H)
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).