MESON Chess Problem Database
Problem Display
PID: 215941 (6r1/3n4/8/3Q3p/R1N1NPkp/2R3qb/K2nPr1P/8 w - - 0 1)
Moen, Kabe
The Problemist, 2019
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Rg5
- 2.Qxg5#
- 1...Ra8
- 2.Qg5#
- 1...Rb8
- 2.Qg5#
- 1...Rc8
- 2.Qg5#
- 1...Rd8
- 2.Qg5#
- 1...Re8
- 2.Qg5#
- 1...Rf8
- 2.Qg5#
- 1...Rh8
- 2.Qg5#
- 1...Rg5
- Tries
- 1.Se3+?
- 1...Kxf4
- 2.Sxd2#
- 1...Qxe3!
- 1...Kxf4
- 1.Sxf2+?
- 1...Kxf4
- 2.Sxd2#
- 1...Qxf2!
- 1...Kxf4
- 1.Sxg3?
- threat
- 2.Se3#
- 2.Qf5#
- 1...Kxf4
- 2.Sxd2#
- 1...Rxe2
- 2.Qf5#
- 1...Rxh2
- 2.Qf5#
- 1...Rxf4
- 2.Se3#
- 2.Qxg8#
- 2.Qxh5#
- 1...Sxc4
- 2.Qf5#
- 1...Bf1
- 2.Qf5#
- 1...Bg2
- 2.Qf5#
- 1...Rf3
- 2.Qf5#
- 1...Rg5
- 2.Se3#
- 2.Qxg5#
- 1...Re8
- 2.Qf5#
- 2.Qg5#
- 1...Rf8
- 2.Se3#
- 2.Qg5#
- 1...Sf1
- 2.Qf5#
- 1...Se4
- 2.Qf5#
- 1...Se5
- 2.Se3#
- 2.Sxe5#
- 1...hxg3!
- threat
- 1.Sed6?
- threat
- 2.Qf5#
- 1...Kxf4
- 2.Sxd2#
- 1...Qxf4
- 2.Se3#
- 1...Rxf4
- 2.Qxg8#
- 1...Rg5
- 2.Qxg5#
- 1...Rf8
- 2.Qg5#
- 1...Se5
- 2.Sxe5#
- 1...Qd3!
- threat
- 1.Sf6+?
- 1...Kxf4
- 2.Sxd2#
- 1...Sxf6!
- 1...Kxf4
- 1.Rxg3+?
- 1...Kxf4
- 2.e3#
- 1...hxg3!
- 1...Kxf4
- 1.hxg3?
- threat
- 2.Se3#
- 2.Sxf2#
- 2.Qe6#
- 2.Qxd7#
- 1...Rxe2
- 2.Qe6#
- 2.Qxd7#
- 1...Rxf4
- 2.Se3#
- 1...Sxc4
- 2.Sxf2#
- 2.Qe6#
- 2.Qxd7#
- 1...Sxe4
- 2.Qe6#
- 2.Qxd7#
- 1...Bf1
- 2.Sxf2#
- 2.Qe6#
- 2.Qxd7#
- 1...Bg2
- 2.Sxf2#
- 2.Qe6#
- 2.Qxd7#
- 1...Se5
- 2.Se3#
- 2.Qe6#
- 1...Rf1
- 2.Se3#
- 2.Qe6#
- 2.Qxd7#
- 1...Rg2
- 2.Se3#
- 2.Qe6#
- 2.Qxd7#
- 1...Rh2
- 2.Se3#
- 2.Qe6#
- 2.Qxd7#
- 1...Rf3
- 2.Qe6#
- 2.Qxd7#
- 1...Rg5
- 2.Se3#
- 2.Sxf2#
- 2.Qxg5#
- 1...Rg6
- 2.Se3#
- 2.Sxf2#
- 1...Rg7
- 2.Se3#
- 2.Sxf2#
- 2.Qe6#
- 1...Rd8
- 2.Se3#
- 2.Sxf2#
- 2.Qe6#
- 2.Qg5#
- 1...Re8
- 2.Se3#
- 2.Sxf2#
- 2.Qg5#
- 1...Rf8
- 2.Se3#
- 2.Sxf2#
- 2.Qg5#
- 1...Sf1
- 2.Sxf2#
- 2.Qe6#
- 2.Qxd7#
- 1...Sf3
- 2.Se3#
- 2.Qe6#
- 2.Qxd7#
- 1...Sc5
- 2.Se3#
- 2.Sxf2#
- 2.Sf6#
- 1...Sb6
- 2.Se3#
- 2.Sxf2#
- 2.Sf6#
- 2.Qe6#
- 1...Sf6
- 2.Se3#
- 2.Sxf2#
- 2.Sxf6#
- 2.Qe6#
- 1...Sb8
- 2.Se3#
- 2.Sxf2#
- 2.Sf6#
- 2.Qe6#
- 1...Sf8
- 2.Se3#
- 2.Sxf2#
- 2.Sf6#
- 1...hxg3!
- threat
- 1.Se3+?
- Keys
- 1.Scd6!
- threat
- 2.Qf5#
- 1...Kxf4
- 2.Sxd2#
- 1...Qxf4
- 2.Sxf2#
- 1...Rxf4
- 2.Qxg8#
- 1...Rg5
- 2.Qxg5#
- 1...Rf8
- 2.Qg5#
- 1...Se5
- 2.Sf6#
- threat
- 1.Scd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 6
- Sets
- R(i);N_GUARD::QAR1(I),XR(i)
- R(i);N_GUARD,P_PINR(E)::QAR1(I)
- R(i);N_GUARD::QAR1(I)
- Tries
- Try
- S(F);CHECK
- Vars
- K(e);P-FLIGHT,XP(H)::R(E)+S(G),XS(a)
- Refutation
- Q(c);XS(F)
- Try
- S(G);CHECK,XR(b)
- Vars
- K(e);P-FLIGHT,XP(H)::R(E)+S(F),XS(a)
- Refutation
- Q(c);XS(G)
- Try
- S(G);XQ(c)
- Threat
- DUALS(2)
- Vars
- K(e);P-FLIGHT,XP(H)::R(E)+S(F),XS(a)
- R(b);XP(B)::QAB1(I)
- R(b);XP(C)::QAB1(I)
- S(a);P_PINP(B),XS(F)::QAB1(I)
- B(d);::QAB1(I)
- R(b);::QAB1(I)
- S(a);P_PINP(B)::QAB1(I)
- Refutation
- P(f);XS(G)
- Try
- S(G);
- Threat
- QAB1(I)
- Vars
- K(e);P-FLIGHT,XP(H)::R(E)+S(F),XS(a)
- Q(c);N_GUARD,XP(H)::S(F)
- R(b);SBLOCK,XP(H)::QAR(I),XR(i)
- R(i);N_GUARD::QAR1(I),XR(i)
- R(i);N_GUARD::QAR1(I)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- Q(c);
- Try
- S(G);CHECK
- Vars
- K(e);P-FLIGHT,XP(H)::R(E)+S(F),XS(a)
- Refutation
- S(h);XS(G)
- Try
- R(D);CHECK,XQ(c)
- Vars
- K(e);P-FLIGHT,XP(H)::P(B)
- Refutation
- P(f);XR(D)
- Try
- P(C);XQ(c)
- Threat
- DUALS(4)
- Vars
- R(b);XP(H)::S(F)
- Refutation
- P(f);XP(C)
- Try
- Actual
- S(F);
- Threat
- QAB1(I)
- Vars
- K(e);P-FLIGHT,XP(H)::R(E)+S(G),XS(a)
- Q(c);N_GUARD,XP(H)::S(G),XR(b)
- R(b);SBLOCK,XP(H)::QAR(I),XR(i)
- R(i);N_GUARD::QAR1(I),XR(i)
- R(i);N_GUARD::QAR1(I)
- S(h);N_GUARD::S(G)
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).