MESON Chess Problem Database
Problem Display
PID: 237773 (8/KPN5/PPNR4/2k1P3/R3qp2/Pn3p2/b3np2/1Q3B2 w - - 0 1)
Goldschmeding, Cornelis
Arbejder-Skak, 1947
#2
12 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sec1
- 2.Se6#
- 1...Sg1
- 2.Se6#
- 1...Sc3
- 2.Se6#
- 1...Sg3
- 2.Se6#
- 1...Sed4
- 2.Rc4#
- 1...Sa1
- 2.Qb5#
- 1...Sbc1
- 2.Qb5#
- 1...Sd2
- 2.Qb5#
- 1...Sbd4
- 2.Qb4#
- 1...Sa5
- 2.Qb5#
- 1...Sec1
- Tries
- 1.Ra5+?
- 1...Sxa5
- 2.Qb5#
- 1...Kc4!
- 1...Sxa5
- 1.Rd5+?
- 1...Kxc6
- 2.b8S#
- 1...Qxd5!
- 1...Kxc6
- 1.Qc2+?
- 1...Qc4
- 2.Rxc4#
- 2.Qxc4#
- 1...Sc3
- 2.Se6#
- 1...Qxc2!
- 1...Qc4
- 1.Qxe4?
- threat
- 2.Rc4#
- 2.Qd5#
- 2.Qb4#
- 2.Qc4#
- 1...Sc3
- 2.Se6#
- 2.Rc4#
- 2.Qb4#
- 2.Qc4#
- 1...Sed4
- 2.Rc4#
- 2.Qd5#
- 1...Sa1
- 2.Ra5#
- 2.Qb4#
- 1...Sbc1
- 2.Ra5#
- 2.Qb4#
- 1...Sd2
- 2.Ra5#
- 2.Qb4#
- 1...Sa5
- 2.Rxa5#
- 2.Qb4#
- 1...Sbd4!
- threat
- 1.Qxb3?
- threat
- 2.Se6#
- 2.Ra5#
- 2.Qb5#
- 1...Qxc6
- 2.Se6#
- 2.Rc4#
- 2.Qb4#
- 1...Qxa4
- 2.Se6#
- 1...Qxe5
- 2.Qb4#
- 1...Qb1
- 2.Se6#
- 2.Rc4#
- 2.Ra5#
- 1...Qd3
- 2.Se6#
- 2.Qb4#
- 1...Qd5
- 2.Ra5#
- 2.Qb4#
- 2.Qb5#
- 1...Qf5
- 2.Rc4#
- 2.Ra5#
- 2.Qb4#
- 2.Qb5#
- 1...Qg6
- 2.Rc4#
- 2.Ra5#
- 2.Qb4#
- 2.Qb5#
- 1...Qb4
- 2.Qxb4#
- 2.axb4#
- 1...Qc4
- 2.Rxc4#
- 1...Sc3
- 2.Se6#
- 1...Sd4
- 2.Rc4#
- 2.Qb4#
- 1...Bxb3!
- threat
- 1.Ra5+?
- Keys
- 1.Sa5!
- 1...Qxb7+
- 2.Sxb7#
- 1...Qxb1
- 2.Rc4#
- 2.Rd5#
- 2.Rc6#
- 1...Qxa4
- 2.Rd5#
- 1...Qxe5
- 2.Rc6#
- 1...Bxb1
- 2.Sxb3#
- 1...Sxa5
- 2.Qb5#
- 1...Qc2
- 2.Rd5#
- 2.Rc6#
- 1...Qd3
- 2.Rc6#
- 1...Qd5
- 2.Rxd5#
- 1...Qf5
- 2.Rc4#
- 2.Rd5#
- 2.Rc6#
- 1...Qc6
- 2.Rc4#
- 2.Rxc6#
- 1...Qg6
- 2.Rc4#
- 2.Rd5#
- 1...Qh7
- 2.Rc4#
- 2.Rd5#
- 2.Rc6#
- 1...Qe3
- 2.Rc4#
- 2.Rd5#
- 2.Rc6#
- 1...Qb4
- 2.Rd5#
- 2.axb4#
- 1...Qc4
- 2.Rxc4#
- 1...Qd4
- 2.Rc6#
- 1...Sec1
- 2.Se6#
- 1...Sg1
- 2.Se6#
- 1...Sc3
- 2.Se6#
- 1...Sg3
- 2.Se6#
- 1...Sed4
- 2.Rc4#
- 1...Sa1
- 2.Qb5#
- 1...Sbc1
- 2.Qb5#
- 1...Sd2
- 2.Qb5#
- 1...Sbd4
- 2.Qb4#
- 1...Qxb7+
- 1.Sa5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- S(b);::S(L)
- S(b);S_CUTQ(f)::R1(D)
- S(d);OGATE::QAR1(A)
- S(d);OGATE::QAB1(A)
- Tries
- Try
- R(D);CHECK
- Vars
- S(d);OGATE,XR(D)::QAR1(A)
- Refutation
- K(h);P-FLIGHT,P_SPINS(b)
- Try
- R(I);CHECK
- Vars
- K(h);P-FLIGHT,XS(H)::P=S
- Refutation
- Q(f);XR(I)
- Try
- Q(A);CHECK
- Vars
- S(b);P_SPINS(b)::S(L)
- Refutation
- Q(f);XQ(A)
- Try
- Q(A);XQ(f)
- Threat
- DUALS(4)
- Refutation
- S(d);
- Try
- Q(A);XS(d)
- Threat
- DUALS(3)
- Vars
- Q(f);P_PINP(F),XR(D)::S(L)
- Q(f);N_GUARD,XP(E)::QAB1(A)
- Q(f);N_GUARD::R1(D),XQ(f)
- S(b);::S(L)
- Refutation
- B(a);XQ(A)
- Try
- Actual
- S(H);
- Vars
- Q(f);CHECK,XP(K)::S(H),XQ(f)
- Q(f);N_GUARD,XR(D)::R1(I)
- Q(f);N_GUARD,XP(E)::R1(I)
- B(a);N_GUARD,XQ(A)::S(H),XS(d)
- S(d);OGATE,XS(H)::QAR1(A)
- Q(f);N_GUARD::R1(I)
- Q(f);N_GUARD::R1(I),XQ(f)
- Q(f);N_GUARD::R1(D),XQ(f)
- S(b);::S(L)
- S(b);S_CUTQ(f)::R1(D)
- S(d);OGATE::QAR1(A)
- S(d);OGATE::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).