MESON Chess Problem Database
Problem Display
PID: 69424 (2nrn2q/3b4/2p2P2/6N1/1pN2k1p/2P1R3/8/1B1QB2K w - - 0 1)
Jonsson, Hermann Leonard
Illustrated American, 1892
#2
9 + 9
| 5669 | Tidsskrift for Skak | 1895 |
| 14907 | Good Companion Chess Problem Club | 1914 |
SOLUTION
- SOUND
- Sets
- 1...Bh3
- 2.Sxh3#
- 1...Be6
- 2.Sxe6#
- 1...Bh3
- Tries
- 1.Sf7?
- threat
- 2.Qf3#
- 2.Qd4#
- 1...Qxf6
- 2.Qf3#
- 1...Sxf6
- 2.Qf3#
- 1...Qh5
- 2.Qd4#
- 1...Qh7
- 2.Qf3#
- 1...Bh3
- 2.Qf3#
- 1...Bf5
- 2.Qf3#
- 1...Be6
- 2.Qf3#
- 1...Scd6
- 2.Qf3#
- 1...Sed6
- 2.Qf3#
- 1...c5
- 2.Qf3#
- 1...Bg4!
- threat
- 1.Rf3+?
- 1...Kg4
- 2.Rf5#
- 1...Kxg5!
- 1...Kg4
- 1.Rg3?
- threat
- 2.Qf3#
- 2.Qc1#
- 2.Qd2#
- 2.Qd4#
- 1...Qxf6
- 2.Qf3#
- 2.Qc1#
- 2.Qd2#
- 1...Sxf6
- 2.Qf3#
- 2.Qc1#
- 2.Qd2#
- 1...bxc3
- 2.Qf3#
- 2.Qc1#
- 2.Qd4#
- 1...Bg4
- 2.Rxg4#
- 2.Qxg4#
- 1...Qh5
- 2.Qc1#
- 2.Qd2#
- 2.Qd4#
- 1...Qh7
- 2.Qf3#
- 2.Qc1#
- 2.Qd2#
- 1...Bh3
- 2.Sxh3#
- 2.Qf3#
- 1...Bf5
- 2.Qf3#
- 1...Be6
- 2.Sxe6#
- 2.Qf3#
- 1...Scd6
- 2.Qf3#
- 2.Qc1#
- 2.Qd2#
- 1...Sed6
- 2.Qf3#
- 2.Qc1#
- 2.Qd2#
- 1...c5
- 2.Qf3#
- 2.Qc1#
- 2.Qd2#
- 1...hxg3+!
- threat
- 1.Re5?
- threat
- 2.Qf3#
- 2.Qd4#
- 1...Sxf6
- 2.Qf3#
- 1...Bf5
- 2.Rxf5#
- 1...Qh5
- 2.Qd4#
- 1...Qh7
- 2.Qf3#
- 1...Bh3
- 2.Sxh3#
- 2.Qf3#
- 1...Be6
- 2.Sxe6#
- 2.Qf3#
- 1...Scd6
- 2.Qf3#
- 1...Sed6
- 2.Qf3#
- 1...c5
- 2.Qf3#
- 1...Bg4!
- threat
- 1.Re6?
- threat
- 2.Sh3#
- 1...Kxg5
- 2.Bd2#
- 1...Bxe6
- 2.Sxe6#
- 1...h3!
- threat
- 1.Sf7?
- Keys
- 1.Bd2!
- threat
- 2.Rh3#
- 1...Kxg5
- 2.Re6#
- 1...bxc3
- 2.Rxc3#
- 1...Bg4
- 2.Rf3#
- 1...Bh3
- 2.Sxh3#
- 1...Bf5
- 2.Rd3#
- 1...Be6
- 2.Sxe6#
- 1...h3
- 2.Rxh3#
- threat
- 1.Bd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- B(e);N_GUARD::S(H),XB(e)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(i);XP(I)::QAR1(B)
- S(h);XP(I)::QAR1(B)
- Q(i);::QAR2(B)
- Q(i);::QAR1(B)
- B(e);::QAR1(B)
- S(f);::QAR1(B)
- S(h);::QAR1(B)
- P(d);::QAR1(B)
- Refutation
- B(e);
- Try
- R(F);CHECK
- Vars
- K(b);OGATE,P-FLIGHT::QAB(B)+R(F)
- Refutation
- K(b);S_FLIGHT,XS(H)
- Try
- R(F);
- Threat
- DUALS(4)
- Vars
- B(e);::QAR1(B)
- Refutation
- P(c);CHECK,XR(F)
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- S(h);XP(I)::QAR1(B)
- B(e);N_GUARD::R1(F),XB(e)
- Q(i);::QAR2(B)
- Q(i);::QAR1(B)
- S(f);::QAR1(B)
- S(h);::QAR1(B)
- P(d);::QAR1(B)
- Refutation
- B(e);
- Try
- R(F);
- Threat
- S(H)
- Vars
- K(b);S_FLIGHT,XS(H)::B(C)
- B(e);XR(F)::S(H),XB(e)
- Refutation
- P(c);
- Try
- Actual
- B(C);
- Threat
- B(C)+R(F)
- Vars
- K(b);S_FLIGHT,XS(H)::B(C)+R(F)
- P(a);OGATE,XP(E)::B(C)+R(F),XP(a)
- B(e);SBLOCK::B(C)+R(F),DCHECK
- B(e);N_GUARD::S(H),XB(e)
- B(e);SBLOCK::B(C)+R(F)
- P(c);::B(C)+R(F),XP(c)
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).