MESON Chess Problem Database
Problem Display
PID: 109939 (8/3bQRK1/2r3n1/2p1p1BP/B2PkNPp/2P1N3/3RPP2/2r5 w - - 0 1)
Jorgensen, Walther Martinus Johannes
2nd Place, Nordic Championship, 1947
#2
14 + 8
| 15593 | 170 Skakopgaver (Jorgensen) | 1975 |
| 6490 | yacpdb | 2009 |
| 15652 | Tehtavaniekka | 2012 |
| 133 | The Problemist Supplement | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Bc2#
- 1...Rb1
- 2.Bc2#
- 1...Rd1
- 2.Bc2#
- 1...Re1
- 2.Bc2#
- 1...Rf1
- 2.Bc2#
- 1...Rg1
- 2.Bc2#
- 1...Rh1
- 2.Bc2#
- 1...Rc2
- 2.Bxc2#
- 1...Bxg4
- 2.Bxc6#
- 1...Bf5
- 2.Bxc6#
- 1...Bc8
- 2.Bxc6#
- 1...Sxf4
- 2.Rxf4#
- 2.Qxe5#
- 1...Sf8
- 2.Qxe5#
- 1...Sh8
- 2.Qxe5#
- 1...cxd4
- 2.Rxd4#
- 1...Ra1
- Tries
- 1.Sf1?
- threat
- 2.f3#
- 1...Rxf1
- 2.Bc2#
- 1...Bxg4
- 2.Bxc6#
- 1...Sxf4
- 2.Qxe5#
- 1...Rxc3!
- threat
- 1.Sc2?
- threat
- 2.f3#
- 1...Rxc2
- 2.Bxc2#
- 1...Bxg4
- 2.Bxc6#
- 1...Sxf4
- 2.Qxe5#
- 1...Rf1!
- threat
- 1.Seg2?
- threat
- 2.f3#
- 1...Bxg4
- 2.Bxc6#
- 1...Sxf4
- 2.Qxe5#
- 1...Rf1
- 2.Bc2#
- 1...Rxc3!
- threat
- 1.Sc4?
- threat
- 2.f3#
- 1...Bxg4
- 2.Bxc6#
- 1...Sxf4
- 2.Qxe5#
- 1...Rf1
- 2.Bc2#
- 1...Rxc3!
- threat
- 1.Sed5?
- threat
- 2.f3#
- 1...Rxc3
- 2.Sxc3#
- 1...Sxf4
- 2.Qxe5#
- 1...Rf1
- 2.Bc2#
- 1...Bxg4!
- threat
- 1.Sf5?
- threat
- 2.f3#
- 1...Bxf5
- 2.Bxc6#
- 1...Sxf4
- 2.Qxe5#
- 1...Rf1
- 2.Bc2#
- 1...Rxc3!
- threat
- 1.Sfg2?
- threat
- 2.f3#
- 1...Bxg4
- 2.Bxc6#
- 1...Rf1
- 2.Bc2#
- 1...Rf6!
- threat
- 1.Sh3?
- threat
- 2.f3#
- 1...Bxg4
- 2.Bxc6#
- 1...Rf1
- 2.Bc2#
- 1...Sf4
- 2.Rxf4#
- 2.Qxe5#
- 1...Rf6!
- threat
- 1.Sfd5?
- threat
- 2.f3#
- 1...Rf1
- 2.Bc2#
- 1...Rf6
- 2.Sxf6#
- 1...Bxg4!
- threat
- 1.Se6?
- threat
- 2.f3#
- 1...exd4
- 2.Sxc5#
- 1...Rf1
- 2.Bc2#
- 1...Sf4!
- threat
- 1.Sxg6?
- threat
- 2.Rf4#
- 2.Qxe5#
- 2.f3#
- 1...Bxg4
- 2.Bxc6#
- 2.Rf4#
- 2.Qxe5#
- 1...Rf1
- 2.Bc2#
- 2.Rf4#
- 2.Qxe5#
- 1...Re6
- 2.f3#
- 1...Rf6
- 2.Qxe5#
- 1...Bf5
- 2.Bxc6#
- 2.Qxe5#
- 2.f3#
- 1...Be6
- 2.f3#
- 1...Rxg6+!
- threat
- 1.Rd3?
- threat
- 2.f3#
- 1...Bxg4
- 2.Bxc6#
- 1...Rf1!
- threat
- 1.Qxd7?
- threat
- 2.Bxc6#
- 2.Qf5#
- 2.Qxc6#
- 2.Qd5#
- 1...Sxf4
- 2.Qf5#
- 1...exd4
- 2.Qf5#
- 2.Qd5#
- 1...Ra6
- 2.Qf5#
- 2.Qd5#
- 1...Rb6
- 2.Qf5#
- 2.Qd5#
- 1...Rd6
- 2.Qf5#
- 1...Re6
- 2.Qd5#
- 1...Rf6
- 2.Qd5#
- 1...Rc7
- 2.Qf5#
- 2.Qd5#
- 1...Rc8
- 2.Qf5#
- 2.Qd5#
- 1...Se7!
- threat
- 1.Sf1?
- Keys
- 1.Sd1!
- threat
- 2.f3#
- 1...Rxd1
- 2.Bc2#
- 1...Rxc3
- 2.Sxc3#
- 1...Bxg4
- 2.Bxc6#
- 1...Sxf4
- 2.Qxe5#
- threat
- 1.Sd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 12
- Sets
- R(a);N_GUARD::B(F)
- R(a);N_GUARD::B(F),XR(a)
- B(h);N_GUARD,XP(I)::B(F),XR(f)
- B(h);N_GUARD::B(F),XR(f)
- S(g);N_GUARD::QAR1(L),XP(e)
- P(d);OGATE,XP(G)::R1(A),XP(d)
- Tries
- Try
- S(E);
- Threat
- P(C)
- Vars
- R(a);N_GUARD,XS(E)::B(F)
- B(h);N_GUARD,XP(I)::B(F),XR(f)
- S(g);N_GUARD,XS(H)::QAR1(L),XP(e)
- Refutation
- R(a);XP(D)
- Try
- S(E);
- Threat
- P(C)
- Vars
- R(a);OGATE,XS(E)::B(F),XR(a)
- B(h);N_GUARD,XP(I)::B(F),XR(f)
- S(g);N_GUARD,XS(H)::QAR1(L),XP(e)
- Refutation
- R(a);
- Try
- S(E);
- Threat
- P(C)
- Vars
- B(h);N_GUARD,XP(I)::B(F),XR(f)
- S(g);N_GUARD,XS(H)::QAR1(L),XP(e)
- R(a);N_GUARD::B(F)
- Refutation
- R(a);XP(D)
- Try
- S(E);
- Threat
- P(C)
- Vars
- B(h);N_GUARD,XP(I)::B(F),XR(f)
- S(g);N_GUARD,XS(H)::QAR1(L),XP(e)
- R(a);N_GUARD::B(F)
- Refutation
- R(a);XP(D)
- Try
- S(E);
- Threat
- P(C)
- Vars
- R(a);XP(D)::S(E),XR(a)
- S(g);N_GUARD,XS(H)::QAR1(L),XP(e)
- R(a);N_GUARD::B(F)
- Refutation
- B(h);XP(I)
- Try
- S(E);
- Threat
- P(C)
- Vars
- B(h);N_GUARD,XS(E)::B(F),XR(f)
- S(g);N_GUARD,XS(H)::QAR1(L),XP(e)
- R(a);N_GUARD::B(F)
- Refutation
- R(a);XP(D)
- Try
- S(H);
- Threat
- P(C)
- Vars
- B(h);N_GUARD,XP(I)::B(F),XR(f)
- R(a);N_GUARD::B(F)
- Refutation
- R(f);
- Try
- S(H);
- Threat
- P(C)
- Vars
- B(h);N_GUARD,XP(I)::B(F),XR(f)
- R(a);N_GUARD::B(F)
- Refutation
- R(f);
- Try
- S(H);
- Threat
- P(C)
- Vars
- R(a);N_GUARD::B(F)
- R(f);N_GUARD::S(H),XR(f)
- Refutation
- B(h);XP(I)
- Try
- S(H);N_PINP(e)
- Threat
- P(C)
- Vars
- P(e);XP(G)::QAR(L)+S(H),DCHECK,XP(d)
- R(a);N_GUARD::B(F)
- Refutation
- S(g);
- Try
- S(H);XS(g)
- Threat
- DUALS(3)
- Vars
- R(f);N_SPINP(e)::P(C)
- R(f);::QAR1(L),XP(e)
- B(h);N_SPINP(e)::P(C)
- Refutation
- R(f);CHECK,XS(H)
- Try
- R(A);
- Threat
- P(C)
- Vars
- B(h);N_GUARD,XP(I)::B(F),XR(f)
- Refutation
- R(a);
- Try
- Q(L);N_PINP(e),XB(h)
- Threat
- DUALS(4)
- Vars
- S(g);XS(H)::QAB1(L)
- R(f);::QAB1(L)
- Refutation
- S(g);
- Try
- Actual
- S(E);
- Threat
- P(C)
- Vars
- R(a);N_GUARD,XS(E)::B(F)
- R(a);XP(D)::S(E),XR(a)
- B(h);N_GUARD,XP(I)::B(F),XR(f)
- S(g);N_GUARD,XS(H)::QAR1(L),XP(e)
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).