MESON Chess Problem Database
Problem Display
PID: 221641 (3r4/8/7R/1N1n1k1N/4pP2/r1p4P/2nP4/b1Q4K w - - 0 1)
Moen, Kabe
Die Schwalbe, 2019
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Rd6
- 2.Sxd6#
- 1...Ra8
- 2.Sd6#
- 1...Rb8
- 2.Sd6#
- 1...Rc8
- 2.Sd6#
- 1...Re8
- 2.Sd6#
- 1...Rf8
- 2.Sd6#
- 1...Rg8
- 2.Sd6#
- 1...Rh8
- 2.Sd6#
- 1...Se1
- 2.Sd4#
- 1...Sce3
- 2.Sd4#
- 1...Scb4
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sde3
- 2.Rf6#
- 1...Sdb4
- 2.Rf6#
- 1...Sb6
- 2.Rf6#
- 1...Sf6
- 2.Rxf6#
- 1...Sc7
- 2.Rf6#
- 1...Se7
- 2.Rf6#
- 1...e3
- 2.Qxc2#
- 1...Rd6
- Tries
- 1.Qd1?
- threat
- 2.Qg4#
- 1...Sf6
- 2.Rxf6#
- 1...e3
- 2.Qxc2#
- 1...Rg8
- 2.Sd6#
- 1...Sce3
- 2.Sd4#
- 1...Sde3
- 2.Rf6#
- 1...Sxf4!
- threat
- 1.Qf1?
- threat
- 2.Sg3#
- 2.Sg7#
- 1...Sxf4
- 2.Qxf4#
- 1...Sf6
- 2.Sg7#
- 2.Rxf6#
- 1...e3
- 2.Sg3#
- 2.Qd3#
- 1...Ra7
- 2.Sg3#
- 1...Rd7
- 2.Sg3#
- 1...Rg8
- 2.Sd6#
- 1...cxd2!
- threat
- 1.Qg1?
- threat
- 2.Qg4#
- 2.Qg5#
- 2.Qg6#
- 1...Sf6
- 2.Rxf6#
- 1...e3
- 2.Qg6#
- 1...Ra6
- 2.Qg4#
- 2.Qg5#
- 1...Rd6
- 2.Sxd6#
- 2.Qg4#
- 2.Qg5#
- 1...Rg8
- 2.Sd6#
- 1...Sce3
- 2.Sd4#
- 2.Qg5#
- 2.Qg6#
- 1...Sde3
- 2.Rf6#
- 2.Qg5#
- 2.Qg6#
- 1...Se7
- 2.Rf6#
- 2.Qg4#
- 2.Qg5#
- 1...Sxf4!
- threat
- 1.d3?
- threat
- 2.Sg3#
- 2.Sg7#
- 1...Sxf4
- 2.Qxf4#
- 1...exd3
- 2.Sg3#
- 1...Sf6
- 2.Sg7#
- 2.Rxf6#
- 1...Ra7
- 2.Sg3#
- 1...Rd7
- 2.Sg3#
- 1...Rg8
- 2.Sd6#
- 1...Sce3
- 2.Sd4#
- 1...Sde3
- 2.Rf6#
- 1...e3!
- threat
- 1.d4?
- threat
- 2.Sg3#
- 2.Sg7#
- 1...Sxf4
- 2.Qxf4#
- 1...exd4 ep
- 2.Sg3#
- 1...Sf6
- 2.Sg7#
- 2.Rxf6#
- 1...e3
- 2.Qxc2#
- 1...Ra7
- 2.Sg3#
- 1...Rd7
- 2.Sg3#
- 1...Rg8
- 2.Sd6#
- 1...Sde3
- 2.Rf6#
- 1...Sce3!
- threat
- 1.Qd1?
- Keys
- 1.dxc3!
- threat
- 2.Sg3#
- 2.Sg7#
- 1...Rxc3
- 2.Sg7#
- 1...Bxc3
- 2.Sg3#
- 1...Sxf4
- 2.Qxf4#
- 1...Sf6
- 2.Sg7#
- 2.Rxf6#
- 1...e3
- 2.Qxc2#
- 1...Ra7
- 2.Sg3#
- 1...Rd7
- 2.Sg3#
- 1...Rg8
- 2.Sd6#
- 1...Sce3
- 2.Sd4#
- 1...Sde3
- 2.Rf6#
- threat
- 1.dxc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 15
- Sets
- R(h);N_GUARD::S(F),XR(h)
- R(h);N_GUARD::S(F)
- S(b);N_GUARD::S(F)
- S(b);N_GUARD::S(F),XS(b)
- S(f);N_GUARD::R1(H)
- S(f);N_GUARD::R1(H),XS(f)
- P(e);OGATEB::QAB(A),XS(b)
- Tries
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- S(f);N_GUARD::R1(H),XS(f)
- P(e);OGATEB::QAB(A),XS(b)
- R(h);N_GUARD::S(F)
- S(b);N_GUARD::S(F)
- S(f);N_GUARD::R1(H)
- Refutation
- S(f);XP(E)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(f);OGATE,P_SPINS(f),XP(E)::QAR1(A),XS(f)
- R(c);::S(G)
- R(h);::S(G)
- R(h);N_GUARD::S(F)
- Refutation
- P(d);XP(C)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- S(f);N_GUARD::R1(H),XS(f)
- P(e);::QAB1(A)
- R(h);N_GUARD::S(F)
- Refutation
- S(f);XP(E)
- Try
- P(C);
- Threat
- DUALS(2)
- Vars
- S(f);OGATE,XP(E)::QAR1(A),XS(f)
- P(e);XP(C)::S(G)
- R(c);::S(G)
- R(h);::S(G)
- R(h);N_GUARD::S(F)
- S(b);N_GUARD::S(F)
- S(f);N_GUARD::R1(H)
- Refutation
- P(e);
- Try
- P(C);
- Threat
- DUALS(2)
- Vars
- S(f);OGATE,XP(E)::QAR1(A),XS(f)
- P(e);EP,XP(C)::S(G)
- P(e);OGATEB::QAB(A),XS(b)
- R(c);::S(G)
- R(h);::S(G)
- R(h);N_GUARD::S(F)
- S(f);N_GUARD::R1(H)
- Refutation
- S(b);
- Try
- Actual
- P(C);XP(d)
- Threat
- DUALS(2)
- Vars
- R(c);XP(C)::S(G)
- B(a);XP(C)::S(G)
- S(f);OGATE,XP(E)::QAR1(A),XS(f)
- P(e);OGATEB::QAB(A),XS(b)
- R(c);::S(G)
- R(h);::S(G)
- R(h);N_GUARD::S(F)
- S(b);N_GUARD::S(F)
- S(f);N_GUARD::R1(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).