MESON Chess Problem Database
Problem Display
PID: 198462 (8/3Nn2K/p7/8/2kr1B1R/rR3Q2/PP6/8 w - - 0 1)
den Toom, Bas
Recomm., Fontaine MT, 1978-1979
#2
8 + 5
| 5110 | Bekroonde Problemen | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Rxb3
- 2.Qxb3#
- 1...Rd1
- 2.Bd2#
- 1...Rd2
- 2.Bxd2#
- 1...Rd3
- 2.Qxd3#
- 1...Re4
- 2.Qxe4#
- 2.Qd3#
- 1...Rxf4
- 2.Rxf4#
- 2.Qd3#
- 1...Rd5
- 2.Qc3#
- 1...Rd6
- 2.Bxd6#
- 1...Rxd7
- 2.Bd6#
- 1...Sf5
- 2.Qc6#
- 1...Sc6
- 2.Qxc6#
- 1...Sg6
- 2.Qc6#
- 1...Sc8
- 2.Qc6#
- 1...Sg8
- 2.Qc6#
- 1...Rxb3
- Tries
- 1.Be5?
- threat
- 2.Rxd4#
- 1...Rxb3
- 2.Qxb3#
- 1...Re4
- 2.Qxe4#
- 2.Qd3#
- 1...Rf4
- 2.Rxf4#
- 2.Qd3#
- 1...Rg4
- 2.Rxg4#
- 2.Qd3#
- 1...Sf5
- 2.Qc6#
- 1...Sc6
- 2.Qxc6#
- 2.Qf7#
- 1...Rxh4+!
- threat
- 1.Bd6?
- threat
- 2.Se5#
- 2.Sb6#
- 2.Rb4#
- 1...Rxb3
- 2.Qxb3#
- 1...Re4
- 2.Qxe4#
- 2.Qd3#
- 1...Rf4
- 2.Rb4#
- 2.Rxf4#
- 2.Qd3#
- 1...Rg4
- 2.Rb4#
- 2.Rxg4#
- 2.Qd3#
- 1...Ra4
- 2.Se5#
- 2.Sb6#
- 1...Ra5
- 2.Sb6#
- 2.Rb4#
- 1...Sd5
- 2.Se5#
- 2.Qe2#
- 2.Qf1#
- 2.Qd3#
- 1...Sc6
- 2.Sb6#
- 2.Qxc6#
- 2.Qf7#
- 1...Sg6
- 2.Sb6#
- 2.Rb4#
- 2.Qc6#
- 2.Qf7#
- 1...Sc8
- 2.Se5#
- 2.Rb4#
- 2.Qc6#
- 2.Qf7#
- 1...a5
- 2.Se5#
- 2.Sb6#
- 1...Rxh4+!
- threat
- 1.Rh5?
- threat
- 2.Sb6#
- 2.Rc5#
- 2.Qc3#
- 1...Rxb3
- 2.Qxb3#
- 1...Rxf4
- 2.Qc3#
- 2.Qd3#
- 2.Qxf4#
- 1...Rxd7
- 2.Qc3#
- 1...Rd1
- 2.Qc3#
- 1...Rd2
- 2.Qc3#
- 1...Rd3
- 2.Qxd3#
- 1...Re4
- 2.Qxe4#
- 2.Qc3#
- 2.Qd3#
- 1...Rd5
- 2.Qc3#
- 1...Rd6
- 2.Qc3#
- 1...Ra5
- 2.Sb6#
- 2.Qc3#
- 1...Sf5
- 2.Qc6#
- 1...Sc8
- 2.Rc5#
- 2.Qc6#
- 2.Qc3#
- 1...Sd5!
- threat
- 1.Qe2+?
- 1...Rd3
- 2.Qxd3#
- 1...Kd5!
- 1...Rd3
- 1.Qf1+?
- 1...Rd3
- 2.Qxd3#
- 1...Kd5!
- 1...Rd3
- 1.Be5?
- Keys
- 1.Qb7!
- 1...Rxa2
- 2.Rc3#
- 1...Rxb3
- 2.Qxb3#
- 1...Rxf4
- 2.Rxf4#
- 1...Rxd7
- 2.Bd6#
- 1...Rd1
- 2.Bd2#
- 1...Rd2
- 2.Bxd2#
- 1...Rd3
- 2.Rb4#
- 1...Re4
- 2.Qxe4#
- 1...Rd5
- 2.Qb4#
- 1...Rd6
- 2.Bxd6#
- 1...Sc6
- 2.Qxc6#
- 1...Ra4
- 2.Rc3#
- 1...Ra5
- 2.Rc3#
- 1...Sd5
- 2.Qc6#
- 1...Sf5
- 2.Qc6#
- 1...Sg6
- 2.Qc6#
- 1...Sc8
- 2.Qc6#
- 1...Sg8
- 2.Qc6#
- 1...a5
- 2.Qb5#
- 1...Rxa2
- 1.Qb7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- R(a);OGATE,XR(C)::QAB1(D),XR(a)
- R(c);OGATEB::R(F)+B(E)
- R(c);OGATEB::R(F)+B(E),XR(c)
- R(c);N_GUARD::QAB1(D),XR(c)
- R(c);SBLOCK::QAR1(D)
- R(c);OGATEB,XS(G)::R(F)+B(E)
- S(e);N_GUARD::QAR2(D)
- S(e);N_GUARD::QAR2(D),XS(e)
- Tries
- Try
- B(E);P_PINR(c)
- Threat
- R1(F),XR(c)
- Vars
- R(a);OGATE,XR(C)::QAB1(D),XR(a)
- S(e);N_GUARD::QAR2(D)
- Refutation
- R(c);CHECK,N_SPINR(c),XR(F)
- Try
- B(E);P_PINR(c)
- Threat
- DUALS(3)
- Vars
- R(a);OGATE,XR(C)::QAB1(D),XR(a)
- Refutation
- R(c);CHECK,N_SPINR(c),XR(F)
- Try
- R(F);
- Threat
- DUALS(3)
- Vars
- R(a);OGATE,XR(C)::QAB1(D),XR(a)
- R(c);XS(G)::QAR1(D)
- R(c);::QAR1(D)
- R(c);N_GUARD::QAB1(D),XR(c)
- S(e);N_GUARD::QAR2(D)
- Refutation
- S(e);
- Try
- Q(D);CHECK
- Vars
- R(c);N_GUARD,P_SPINR(c)::QAB1(D),XR(c)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(D);CHECK
- Vars
- R(c);N_GUARD,P_SPINR(c)::QAB1(D),XR(c)
- Refutation
- K(b);S_FLIGHT
- Try
- Actual
- Q(D);
- Vars
- R(a);N_GUARD,XP(A)::R1(C)
- R(a);OGATE,XR(C)::QAB1(D),XR(a)
- R(c);OGATE,P_SPINR(c),XB(E)::R(F),XR(c)
- R(c);OGATEB,XS(G)::R(F)+B(E)
- R(c);OGATEB::R(F)+B(E)
- R(c);OGATEB::R(F)+B(E),XR(c)
- R(c);SBLOCK::R1(C)
- R(c);OGATEB::QAR2(D),XR(c)
- R(c);SBLOCK::QAR1(D)
- S(e);N_GUARD::QAR2(D),XS(e)
- R(a);N_GUARD::R1(C)
- S(e);N_GUARD::QAR2(D)
- P(d);N_GUARD::QAB1(D)
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).