MESON Chess Problem Database
Problem Display
PID: 213053 (K4R2/2P4B/1p1N4/2PN3Q/n2k4/2p1p3/3bp3/1R2qn2 w - - 0 1)
Goldschmeding, Cornelis
Suomen Shakki, 1953
#2
9 + 9
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sxc5
- 2.Rb4#
- 1...bxc5
- 2.Rf4#
- 1...Sxc5
- Tries
- 1.Sb4?
- threat
- 2.Sc2#
- 2.Sc6#
- 2.Rf4#
- 2.Qd5#
- 1...Qxb1
- 2.Sc6#
- 2.Qd5#
- 1...Sxc5
- 2.Sc2#
- 2.Sc6#
- 2.Qd5#
- 1...Qf2
- 2.Sc2#
- 2.Sc6#
- 2.Qd5#
- 1...Qg3
- 2.Sc2#
- 2.Sc6#
- 2.Qd5#
- 1...Qh4
- 2.Sc2#
- 2.Sc6#
- 2.Qd5#
- 1...Qc1
- 2.Sc6#
- 2.Rf4#
- 2.Qd5#
- 1...Qd1
- 2.Sc6#
- 2.Rf4#
- 2.Qd5#
- 1...Sg3
- 2.Sc2#
- 2.Sc6#
- 2.Qd5#
- 1...c2!
- threat
- 1.Sf4?
- threat
- 2.Se6#
- 2.Rb4#
- 2.Qd5#
- 1...Qxb1
- 2.Sxe2#
- 2.Se6#
- 2.Qd5#
- 1...Sxc5
- 2.Rb4#
- 2.Qd5#
- 1...bxc5
- 2.Se6#
- 2.Qd5#
- 1...Sb2
- 2.Se6#
- 2.Qd5#
- 1...c2!
- threat
- 1.Sxb6?
- threat
- 2.Sb5#
- 2.Rb4#
- 2.Rf4#
- 2.Qd5#
- 1...Qxb1
- 2.Qd5#
- 1...Sxc5
- 2.Sb5#
- 2.Rb4#
- 2.Qd5#
- 1...c2
- 2.Sb5#
- 1...Qf2
- 2.Sb5#
- 2.Rb4#
- 2.Qd5#
- 1...Qg3
- 2.Sb5#
- 2.Rb4#
- 2.Qd5#
- 1...Qh4
- 2.Sb5#
- 2.Rb4#
- 2.Qd5#
- 1...Sg3
- 2.Sb5#
- 2.Rb4#
- 2.Qd5#
- 1...Sb2
- 2.Sb5#
- 2.Rf4#
- 2.Qd5#
- 1...Sxb6+!
- threat
- 1.Sf6?
- threat
- 2.Rb4#
- 2.Qd5#
- 1...Qxb1
- 2.Qd5#
- 1...bxc5
- 2.Qd5#
- 1...Sb2
- 2.Qd5#
- 1...c2!
- threat
- 1.Se7?
- threat
- 2.Sc6#
- 2.Rb4#
- 2.Rf4#
- 2.Qd5#
- 1...Qxb1
- 2.Sc6#
- 2.Qd5#
- 1...Sxc5
- 2.Sc6#
- 2.Rb4#
- 2.Qd5#
- 1...bxc5
- 2.Sc6#
- 2.Rf4#
- 2.Qd5#
- 1...Qf2
- 2.Sc6#
- 2.Rb4#
- 2.Qd5#
- 1...Qg3
- 2.Sc6#
- 2.Rb4#
- 2.Qd5#
- 1...Qh4
- 2.Sc6#
- 2.Rb4#
- 2.Qd5#
- 1...Sg3
- 2.Sc6#
- 2.Rb4#
- 2.Qd5#
- 1...Sb2
- 2.Sc6#
- 2.Rf4#
- 2.Qd5#
- 1...c2!
- threat
- 1.Sb5+?
- 1...Kxc5
- 2.c8Q#
- 2.c8R#
- 1...Kc4!
- 1...Kxc5
- 1.Sb7?
- threat
- 2.Rb4#
- 2.Rf4#
- 1...Kc4
- 2.Rb4#
- 2.Rf4#
- 1...Sxc5
- 2.Rb4#
- 1...bxc5
- 2.Rf4#
- 1...Qf2
- 2.Rb4#
- 1...Qg3
- 2.Rb4#
- 1...Qh4
- 2.Rb4#
- 1...Sg3
- 2.Rb4#
- 1...Sb2
- 2.Rf4#
- 1...c2
- 2.Rf4#
- 1...Qxb1!
- threat
- 1.Qe5+?
- 1...Kxc5
- 2.Sb4#
- 2.Se7#
- 2.c8Q#
- 2.c8R#
- 1...Kxe5!
- 1...Kxc5
- 1.c8Q?
- threat
- 2.Rb4#
- 2.Rf4#
- 1...Sxc5
- 2.Rb4#
- 1...bxc5
- 2.Rf4#
- 2.Qcg4#
- 1...Qf2
- 2.Rb4#
- 1...Qg3
- 2.Rb4#
- 1...Qh4
- 2.Rb4#
- 1...Sg3
- 2.Rb4#
- 1...Sb2
- 2.Rf4#
- 1...c2
- 2.Rf4#
- 1...Qxb1!
- threat
- 1.c8R?
- threat
- 2.Rb4#
- 2.Rf4#
- 1...Sxc5
- 2.Rb4#
- 1...bxc5
- 2.Rf4#
- 1...Qf2
- 2.Rb4#
- 1...Qg3
- 2.Rb4#
- 1...Qh4
- 2.Rb4#
- 1...Sg3
- 2.Rb4#
- 1...Sb2
- 2.Rf4#
- 1...c2
- 2.Rf4#
- 1...Qxb1!
- threat
- 1.Sb4?
- Keys
- 1.Sxc3!
- threat
- 2.Scb5#
- 1...Kxc3
- 2.Qe5#
- 1...Qxb1
- 2.Sxe2#
- 1...Bxc3
- 2.Rf4#
- 1...Sxc3
- 2.Rb4#
- 1...b5
- 2.Scxb5#
- threat
- 1.Sxc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 2
- Sets
- S(g);SBLOCK,XP(B)::R(A)
- P(i);SBLOCK,XP(B)::R(I)
- Tries
- Try
- S(C);
- Threat
- DUALS(4)
- Refutation
- P(e);
- Try
- S(C);
- Threat
- DUALS(3)
- Refutation
- P(e);
- Try
- S(C);XP(i)
- Threat
- DUALS(4)
- Vars
- Q(a);XR(A)::QAR1(D)
- P(e);::S(E)
- Refutation
- S(g);CHECK,XS(C)
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- Q(a);XR(A)::QAR1(D)
- P(i);XP(B)::QAR1(D)
- S(g);::QAR1(D)
- Refutation
- P(e);
- Try
- S(C);
- Threat
- DUALS(4)
- Refutation
- P(e);
- Try
- S(E);CHECK
- Vars
- K(h);S_FLIGHT,XP(B)::P=Q
- Refutation
- K(h);P-FLIGHT
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- S(g);XP(B)::R(A)
- P(i);XP(B)::R(I)
- Q(a);::R(A)
- S(b);::R(A)
- S(g);::R(I)
- P(e);::R(I)
- Refutation
- Q(a);XR(A)
- Try
- Q(D);CHECK
- Refutation
- K(h);S_FLIGHT,XQ(D)
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- S(g);XP(B)::R(A)
- Q(a);::R(A)
- S(b);::R(A)
- S(g);::R(I)
- P(e);::R(I)
- Refutation
- Q(a);XR(A)
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- S(g);XP(B)::R(A)
- P(i);XP(B)::R(I)
- Q(a);::R(A)
- S(b);::R(A)
- S(g);::R(I)
- P(e);::R(I)
- Refutation
- Q(a);XR(A)
- Try
- Actual
- S(C);XP(e)
- Threat
- S(C)
- Vars
- K(h);S_FLIGHT,XS(C)::QAB(D)
- Q(a);N_GUARD,XR(A)::S(C),XP(d)
- B(c);SBLOCK,XS(C)::R(I)
- S(g);SBLOCK,XS(C)::R(A)
- P(i);::S(C),XP(i)
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).