MESON Chess Problem Database
Problem Display
PID: 22025 (8/K2pN3/2pP4/8/Rnr1kbqR/5n2/1B1PPQr1/3N3B w - - 0 1)
Malmstrom, Birger Georg Christens
3rd Prize, Good Companions (February), 1923
#2
11 + 9
| 3360 | Simple Two-move Themes | 1924 |
| 20 | De Problemist | 1932 |
| 56 | The Problemist | 1937 |
| 3391 | Het Half Pin Thema | 1947 |
| 5862 | An ABC of Chess Problems | 1970 |
| 4640 | Chess Wizardry: The New ABC of Chess Problems | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Qh3
- 2.Qe3#
- 1...Qf5
- 2.Qe3#
- 2.Qxf3#
- 1...Qh5
- 2.Qe3#
- 1...Qe6
- 2.Qe3#
- 2.Qxf3#
- 1...Qg3
- 2.Qe3#
- 1...Qxh4
- 2.Qxf3#
- 1...Qg5
- 2.Qe3#
- 2.Qxf3#
- 1...Qg6
- 2.Qe3#
- 2.Qxf3#
- 1...Qg7
- 2.Qe3#
- 2.Qxf3#
- 1...Qg8
- 2.Qe3#
- 2.Qxf3#
- 1...Rxf2
- 2.Sxf2#
- 1...Rc1
- 2.d3#
- 1...Rc2
- 2.d3#
- 1...Rc5
- 2.d3#
- 1...Bxd2
- 2.Qxf3#
- 1...Bh2
- 2.Qe3#
- 2.Qxf3#
- 1...Be3+
- 2.Qxe3#
- 1...Bg3
- 2.Qe3#
- 2.Qxf3#
- 1...Be5
- 2.Qe3#
- 2.Qxf3#
- 1...Bg5
- 2.Qxf3#
- 1...Bxd6
- 2.Qe3#
- 2.Qxf3#
- 1...Bh6
- 2.Qxf3#
- 1...Sa2
- 2.d3#
- 1...Sc2
- 2.d3#
- 1...Sd5
- 2.d3#
- 1...Sa6
- 2.d3#
- 1...Qh3
- Tries
- 1.Rxg4?
- threat
- 2.Qe3#
- 2.Qxf3#
- 1...Rxf2
- 2.Sxf2#
- 1...Rxg4
- 2.Bxf3#
- 2.Qxf3#
- 1...Sxd2
- 2.Rxf4#
- 2.Qe3#
- 2.Qxf4#
- 1...Rd4
- 2.Qe3#
- 1...Sd4
- 2.Qe3#
- 2.Qxf4#
- 1...Rg3
- 2.Qe3#
- 1...Se1
- 2.Rxf4#
- 2.Qe3#
- 2.Qxf4#
- 1...Sg1
- 2.Rxf4#
- 2.Qe3#
- 2.Qxf4#
- 1...Sh2
- 2.Rxf4#
- 2.Qe3#
- 2.Qxf4#
- 1...Sh4
- 2.Rxf4#
- 2.Qe3#
- 2.Qxf4#
- 1...Se5
- 2.Rxf4#
- 2.Qe3#
- 2.Qxf4#
- 1...Sg5
- 2.Rxf4#
- 2.Qe3#
- 2.Qxf4#
- 1...Sc2
- 2.Qxf3#
- 2.d3#
- 1...Sd5
- 2.Qxf3#
- 2.d3#
- 1...Rc3!
- threat
- 1.Rxg4?
- Keys
- 1.Qc5!
- 1...Qxh4
- 2.Qf5#
- 1...Rxe2
- 2.Qxc4#
- 1...Rxc5
- 2.d3#
- 1...Bxd2
- 2.Qf5#
- 1...Bxd6
- 2.Qe3#
- 2.Qf5#
- 1...Sxd2
- 2.Sf2#
- 1...Sxh4
- 2.Sf2#
- 2.Qxc4#
- 1...Bh2
- 2.Qe3#
- 2.Qf5#
- 1...Be3
- 2.Qxe3#
- 1...Bg3
- 2.Qe3#
- 2.Qf5#
- 1...Be5
- 2.Qe3#
- 1...Bg5
- 2.Qf5#
- 1...Bh6
- 2.Qf5#
- 1...Qh3
- 2.Qe3#
- 1...Qf5
- 2.Qe3#
- 2.Qxf5#
- 1...Qh5
- 2.Qe3#
- 1...Qe6
- 2.Qe3#
- 1...Qg3
- 2.Qe3#
- 2.Qf5#
- 1...Qg5
- 2.Qe3#
- 1...Qg6
- 2.Qe3#
- 1...Qg7
- 2.Qe3#
- 2.Qf5#
- 1...Qg8
- 2.Qe3#
- 2.Qf5#
- 1...Rg1
- 2.Sf2#
- 2.Qxc4#
- 1...Rf2
- 2.Sxf2#
- 2.Qxc4#
- 1...Rh2
- 2.Qxc4#
- 1...Rg3
- 2.Sf2#
- 2.Qxc4#
- 1...Rc1
- 2.d3#
- 1...Rc2
- 2.Qxc2#
- 2.d3#
- 1...Rc3
- 2.Sxc3#
- 1...Rd4
- 2.Sc3#
- 1...Se1
- 2.Sf2#
- 2.Qxc4#
- 1...Sg1
- 2.Sf2#
- 2.Qxc4#
- 1...Sh2
- 2.Sf2#
- 2.Qxc4#
- 1...Sd4
- 2.Sf2#
- 1...Se5
- 2.Sf2#
- 1...Sg5
- 2.Sf2#
- 2.Qxc4#
- 1...Sa2
- 2.d3#
- 1...Sc2
- 2.Sc3#
- 2.d3#
- 1...Sd3
- 2.Sc3#
- 1...Sd5
- 2.d3#
- 1...Sa6
- 2.Sc3#
- 2.d3#
- 1...Qxh4
- 1.Qc5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 12
- REMOVED MATES = 5
- Sets
- Q(g);P_SPINB(f)::QAR1(F)
- Q(g);N_GUARD,XR(H)::QAB1(F),XS(b)
- R(a);P_SPINS(b),XQ(F)::S(A),XR(a)
- R(d);P_SPINS(c)::P(D)
- B(f);P_SPINQ(g),XP(D)::QAB1(F),XS(b)
- B(f);CHECK,N_GUARD,P_SPINQ(g)::QAR1(F),XB(f)
- B(f);P_SPINQ(g)::QAB1(F),XS(b)
- S(c);N_GUARD,P_SPINR(d)::P(D)
- Tries
- Try
- R(H);P_PINB(f),XQ(g)
- Threat
- DUALS(2)
- Vars
- R(a);P_SPINS(b),XQ(F)::S(A),XR(a)
- R(d);::QAR1(F)
- R(a);P_SPINS(b)::QAR1(F)
- Refutation
- R(d);P_SPINS(c)
- Try
- Actual
- Q(F);
- Vars
- Q(g);N_GUARD,XR(H)::QAB1(F)
- R(a);P_SPINS(b),XP(E)::QAR2(F),XR(d)
- R(d);P_SPINS(c),XQ(F)::P(D)
- B(f);P_SPINQ(g),XP(D)::QAB1(F)
- S(b);P_SPINR(a),XP(D)::S(A)
- B(f);N_GUARD,P_PINQ(F),P_SPINQ(g)::QAR1(F),XB(f)
- B(f);N_GUARD,P_SPINQ(g)::QAR1(F)
- B(f);P_SPINQ(g)::QAB1(F)
- Q(g);P_SPINB(f)::QAR1(F)
- R(a);P_SPINS(b)::QAR2(F),XR(d)
- R(d);P_SPINS(c)::P(D)
- R(d);N_GUARD,P_SPINS(c)::S(A),XR(d)
- R(d);N_GUARD::S(A)
- S(b);P_SPINR(a)::S(A)
- S(c);N_GUARD,P_SPINR(d)::P(D)
- S(c);P_SPINR(d)::S(A)
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).