MESON Chess Problem Database
Problem Display
PID: 101349 (4b2K/bqp1p3/R4p1N/1R1NkPp1/3n4/r1n5/1B6/3Q3B w - - 0 1)
Hartong, Jan
Good Companions, 1919
#2
9 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sb1
- 2.Re6#
- 1...Sxd1
- 2.Re6#
- 1...Sa2
- 2.Re6#
- 1...Sce2
- 2.Re6#
- 1...Sa4
- 2.Re6#
- 1...Se4
- 2.Re6#
- 1...Scxb5
- 2.Re6#
- 1...Sc2
- 2.Re6#
- 1...Sde2
- 2.Re6#
- 1...Sb3
- 2.Re6#
- 1...Sf3
- 2.Re6#
- 1...Sdxb5
- 2.Re6#
- 1...Sxf5
- 2.Sg4#
- 1...Se6
- 2.Rxe6#
- 1...Sb1
- Tries
- 1.Qe2+?
- 1...Scxe2
- 2.Re6#
- 1...Se4
- 2.Re6#
- 2.Qxe4#
- 1...Sdxe2!
- 1...Scxe2
- 1.Qg4?
- threat
- 2.Qg3#
- 1...Scxb5
- 2.Re6#
- 2.Qe4#
- 1...Sxd5
- 2.Re6#
- 2.Qe4#
- 1...Sdxb5
- 2.Re6#
- 2.Qe4#
- 1...Sxf5
- 2.Qe4#
- 1...Sb1
- 2.Re6#
- 2.Qe4#
- 1...Sd1
- 2.Re6#
- 2.Qe4#
- 1...Sa2
- 2.Re6#
- 2.Qe4#
- 1...Sce2
- 2.Re6#
- 2.Qe4#
- 1...Sa4
- 2.Re6#
- 2.Qe4#
- 1...Se4
- 2.Re6#
- 2.Qxe4#
- 1...Sc2
- 2.Re6#
- 2.Qe4#
- 1...Sde2
- 2.Re6#
- 2.Qe4#
- 1...Sb3
- 2.Re6#
- 2.Qe4#
- 1...Sf3
- 2.Re6#
- 1...Se6
- 2.Rxe6#
- 2.Qe4#
- 1...Sc6!
- threat
- 1.Qe1+?
- 1...Sce2
- 2.Re6#
- 1...Se4
- 2.Re6#
- 2.Qxe4#
- 1...Sde2!
- 1...Sce2
- 1.Qd3?
- threat
- 2.Sg4#
- 2.Qg3#
- 1...Qxd5
- 2.Qg3#
- 1...Qxa6
- 2.Qg3#
- 1...Rxa6
- 2.Qg3#
- 1...Scxb5
- 2.Sg4#
- 2.Re6#
- 2.Qe4#
- 1...Sxd5
- 2.Qe4#
- 1...Sdxb5
- 2.Sg4#
- 2.Re6#
- 2.Qe4#
- 1...Sxf5
- 2.Sg4#
- 2.Qe4#
- 1...Qc6
- 2.Qg3#
- 1...Qb6
- 2.Qg3#
- 1...Bb6
- 2.Qg3#
- 1...Bc6
- 2.Sf7#
- 2.Qg3#
- 1...c6
- 2.Qg3#
- 1...Bh5
- 2.Qg3#
- 1...Sb1
- 2.Sg4#
- 2.Re6#
- 2.Qe4#
- 1...Sd1
- 2.Sg4#
- 2.Re6#
- 2.Qe4#
- 1...Sa2
- 2.Sg4#
- 2.Re6#
- 2.Qe4#
- 1...Sce2
- 2.Sg4#
- 2.Re6#
- 2.Qe4#
- 1...Sa4
- 2.Sg4#
- 2.Re6#
- 2.Qe4#
- 1...Se4
- 2.Re6#
- 2.Qxe4#
- 1...Sc2
- 2.Sg4#
- 2.Re6#
- 2.Qe4#
- 1...Sde2
- 2.Sg4#
- 2.Re6#
- 2.Qe4#
- 1...Sb3
- 2.Sg4#
- 2.Re6#
- 2.Qe4#
- 1...Sf3
- 2.Sg4#
- 2.Re6#
- 1...Se6
- 2.Sg4#
- 2.Rxe6#
- 2.Qe4#
- 1...g4
- 2.Sxg4#
- 2.Qg3#
- 1...Sc6!
- threat
- 1.Qxd4+?
- 1...Bxd4
- 2.Re6#
- 1...Kxd4!
- 1...Bxd4
- 1.Qe2+?
- Keys
- 1.Qd2!
- threat
- 2.Qh2#
- 1...Scxb5
- 2.Re6#
- 1...Sxd5
- 2.Re6#
- 1...Sdxb5
- 2.Re6#
- 1...Sxf5
- 2.Sg4#
- 1...Sf3
- 2.Re6#
- 1...Sc6
- 2.Sb6#
- 1...Sb1
- 2.Re6#
- 1...Sd1
- 2.Re6#
- 1...Sa2
- 2.Re6#
- 1...Sce2
- 2.Re6#
- 1...Sa4
- 2.Re6#
- 1...Se4
- 2.Re6#
- 1...Sc2
- 2.Re6#
- 1...Sde2
- 2.Re6#
- 1...Sb3
- 2.Re6#
- 1...Se6
- 2.Rxe6#
- 1...g4
- 2.Qf4#
- threat
- 1.Qd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(b);P_SPINS(c)::R1(G)
- S(b);P_SPINS(c),XQ(A)::R1(G)
- S(b);P_SPINS(c),XR(D)::R1(G)
- S(c);N_GUARD,P_SPINS(b)::R1(G)
- S(c);N_GUARD,P_SPINS(b),XR(D)::R1(G)
- S(c);P_SPINS(b),SBLOCK,XP(F)::S(H)
- S(c);N_GUARD,P_SPINS(b)::R1(G),XS(c)
- Tries
- Try
- Q(A);CHECK
- Vars
- S(b);P_SPINS(c),XQ(A)::R1(G)
- Refutation
- S(c);P_SPINS(b),XQ(A)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- S(c);P_SPINS(b),XP(F)::QAR1(A)
- S(c);N_GUARD,P_SPINS(b)::R1(G)
- Refutation
- S(c);P_SPINS(b)
- Try
- Q(A);CHECK
- Vars
- S(b);P_SPINS(b)::R1(G)
- Refutation
- S(c);P_SPINS(c)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(h);P_SPINQ(h),XS(E)::QAB(A)
- Q(h);XR(G)::QAB(A)
- R(a);XR(G)::QAB(A)
- S(b);N_GUARD,P_SPINS(c),XS(E)::QAR1(A)
- Q(h);::QAB(A)
- B(g);::QAB(A)
- P(i);::QAB(A)
- B(k);::QAB(A)
- Refutation
- S(c);P_SPINS(b)
- Try
- Q(A);CHECK,XS(c)
- Vars
- B(g);SBLOCK,XQ(A)::R1(G)
- Refutation
- K(d);P_SPINS(b),S_FLIGHT,XQ(A)
- Try
- Actual
- Q(A);
- Threat
- QAB(A)
- Vars
- S(b);P_SPINS(c),XR(D)::R1(G)
- S(b);P_SPINS(c),XS(E)::R1(G)
- S(c);N_GUARD,P_SPINS(b),XR(D)::R1(G)
- S(c);P_SPINS(b),SBLOCK,XP(F)::S(H)
- S(c);N_GUARD,P_SPINS(b)::R1(G)
- S(c);N_GUARD,P_SPINS(b),S_CUTB(k),S_CUTP(i),S_CUTQ(h)::R(D)+S(E)
- S(b);P_SPINS(c)::R1(G)
- S(c);N_GUARD,P_SPINS(b)::R1(G),XS(c)
- P(e);N_GUARD::QAB1(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).