MESON Chess Problem Database
Problem Display
PID: 237784 (5Rr1/1N1p4/4p1n1/4N3/q3k2p/1BPn3Q/3r1pP1/4bK2 w - - 0 1)
Goldschmeding, Cornelis
Arbejder-Skak, 1953
#2
8 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sdxe5
- 2.Sc5#
- 1...Sgxe5
- 2.Sd6#
- 1...Sdxe5
- Tries
- 1.Sxd3?
- threat
- 2.Sbc5#
- 2.Sd6#
- 2.Qf3#
- 1...Qxb3
- 2.Qf3#
- 1...Rxf8
- 2.Sbc5#
- 2.Sd6#
- 1...Qc4
- 2.Qf3#
- 1...Qb5
- 2.Sd6#
- 2.Qf3#
- 1...Qc6
- 2.Qf3#
- 1...Qa3
- 2.Qf3#
- 1...Qb4
- 2.Qf3#
- 1...Qd4
- 2.Qf3#
- 1...Qa5
- 2.Sd6#
- 2.Qf3#
- 1...Qa6
- 2.Sc5#
- 2.Qf3#
- 1...Qa7
- 2.Sd6#
- 2.Qf3#
- 1...Se5
- 2.Sdc5#
- 2.Sbc5#
- 2.Sd6#
- 2.Rf4#
- 1...d6
- 2.Sxd6#
- 2.Qf3#
- 1...Rxd3!
- threat
- 1.Sg4?
- threat
- 2.Sd6#
- 2.Qe3#
- 2.Qf3#
- 1...Qxb3
- 2.Qf3#
- 1...Sxf8
- 2.Qf3#
- 1...Qc4
- 2.Qf3#
- 1...Qc6
- 2.Qe3#
- 2.Qf3#
- 1...Qa3
- 2.Qe3#
- 2.Qf3#
- 1...Qb4
- 2.Qe3#
- 2.Qf3#
- 1...Qd4
- 2.Qf3#
- 1...Qa6
- 2.Qe3#
- 2.Qf3#
- 1...Qa7
- 2.Sd6#
- 2.Qf3#
- 1...Re2
- 2.Sd6#
- 2.Qf3#
- 1...Sc1
- 2.Sc5#
- 2.Qe3#
- 2.Qf3#
- 1...Sb2
- 2.Sc5#
- 2.Qe3#
- 2.Qf3#
- 1...Sb4
- 2.Sc5#
- 2.Qe3#
- 2.Qf3#
- 1...Sdf4
- 2.Sc5#
- 2.Qe3#
- 2.Qf3#
- 1...Sc5
- 2.Sxc5#
- 2.Qe3#
- 2.Qf3#
- 1...Sde5
- 2.Sc5#
- 2.Qe3#
- 1...Sge5
- 2.Sd6#
- 2.Qe3#
- 1...d6
- 2.Sxd6#
- 2.Qe3#
- 2.Qf3#
- 1...Rxf8!
- threat
- 1.Sxg6?
- threat
- 2.Sd6#
- 2.Qf3#
- 1...Qxb3
- 2.Qf3#
- 1...Rxf8
- 2.Sd6#
- 1...Qc4
- 2.Qf3#
- 1...Qc6
- 2.Qf3#
- 1...Qa3
- 2.Qf3#
- 1...Qb4
- 2.Qf3#
- 1...Qd4
- 2.Qf3#
- 1...Qa6
- 2.Qf3#
- 1...Sc1
- 2.Sc5#
- 2.Rf4#
- 2.Qf3#
- 1...Sb2
- 2.Sc5#
- 2.Rf4#
- 2.Qf3#
- 1...Sb4
- 2.Sc5#
- 2.Rf4#
- 2.Qf3#
- 1...Sf4
- 2.Sc5#
- 2.Rxf4#
- 2.Qf3#
- 1...Sc5
- 2.Sxc5#
- 2.Rf4#
- 2.Qf3#
- 1...Se5
- 2.Sc5#
- 2.Rf4#
- 1...d6
- 2.Sxd6#
- 2.Qf3#
- 1...Rxg6!
- threat
- 1.Rf5?
- threat
- 2.Sd6#
- 2.Qf3#
- 1...Qxb3
- 2.Qf3#
- 1...Sdxe5
- 2.Sc5#
- 1...Sgxe5
- 2.Sd6#
- 1...Qc4
- 2.Qf3#
- 1...Qc6
- 2.Qf3#
- 1...Qa3
- 2.Qf3#
- 1...Qb4
- 2.Qf3#
- 1...Qd4
- 2.Qf3#
- 1...Qa6
- 2.Qf3#
- 1...Sc1
- 2.Sc5#
- 2.Qf3#
- 1...Sb2
- 2.Sc5#
- 2.Qf3#
- 1...Sb4
- 2.Sc5#
- 2.Qf3#
- 1...Sdf4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 2.Qf3#
- 1...Sgf4
- 2.Sd6#
- 1...d6
- 2.Sxd6#
- 2.Qf3#
- 1...exf5!
- threat
- 1.Qf5+?
- 1...Ke3
- 2.Qf3#
- 1...exf5!
- 1...Ke3
- 1.Sxd3?
- Keys
- 1.Sf7!
- threat
- 2.Qf3#
- 1...Kf4
- 2.Qf3#
- 1...Sdf4
- 2.Sc5#
- 1...Sde5
- 2.Sg5#
- 1...Sgf4
- 2.Sbd6#
- 1...Sge5
- 2.Sfd6#
- threat
- 1.Sf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(d);N_GUARD,SBLOCK,XS(F)::S(G)
- S(i);SBLOCK,XS(F)::S(G)
- Tries
- Try
- S(F);XS(d)
- Threat
- DUALS(3)
- Vars
- Q(e);XB(C)::QAB1(E)
- Q(e);P_PINS(F)::QAB1(E)
- Q(e);::QAB1(E)
- Refutation
- R(b);XS(F)
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- Q(e);XB(C)::QAB1(E)
- S(i);XR(H)::QAB1(E)
- Q(e);::QAB1(E)
- Refutation
- R(k);XR(H)
- Try
- S(F);XS(i)
- Threat
- DUALS(2)
- Vars
- Q(e);XB(C)::QAB1(E)
- R(k);XR(H)::S(G)
- Q(e);::QAB1(E)
- Refutation
- R(k);XS(F)
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- Q(e);XB(C)::QAB1(E)
- S(d);N_GUARD,XS(F)::S(G)
- S(i);XS(F)::S(G)
- Q(e);::QAB1(E)
- S(d);N_GUARD::S(G)
- S(i);::S(G)
- Refutation
- P(h);XR(H)
- Try
- Q(E);CHECK
- Vars
- K(f);P-FLIGHT::QAR1(E)
- Refutation
- P(h);XQ(E)
- Try
- Actual
- S(F);
- Threat
- QAB1(E)
- Vars
- K(f);P-FLIGHT::QAR1(E)
- S(d);N_GUARD,SBLOCK::S(G)
- S(d);SBLOCK::S(F)
- S(i);SBLOCK::S(G)
- S(i);SBLOCK::S(F)
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).