MESON Chess Problem Database
Problem Display
PID: 210742 (4K3/4Rp2/1NB5/p1P1N1p1/P2k1rp1/Q4R2/1P1q4/8 w - - 0 1)
Wenda, Klaus
Deutsche Schachblatter, 1984
#2
10 + 7
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Rd3#
- 1...Qe1
- 2.Rd3#
- 1...Qc3
- 2.Qxc3#
- 2.bxc3#
- 1...Qe3
- 2.Qxe3#
- 1...Qb4
- 2.Qe3#
- 1...Qd1
- 2.Qc3#
- 2.Qe3#
- 1...Qxb2
- 2.Rd3#
- 2.Qe3#
- 1...Qc2
- 2.Qe3#
- 1...Qe2
- 2.Qc3#
- 1...Qf2
- 2.Rd3#
- 2.Qc3#
- 1...Qg2
- 2.Rd3#
- 2.Qc3#
- 2.Qe3#
- 1...Qh2
- 2.Rd3#
- 2.Qc3#
- 2.Qe3#
- 1...Qd3
- 2.Rxd3#
- 1...Qc1
- Tries
- 1.Sec4?
- threat
- 2.Rd7#
- 1...Qb4
- 2.Qe3#
- 1...Qe1
- 2.Rd3#
- 1...Qe3
- 2.Qxe3#
- 1...Re4
- 2.Rxe4#
- 1...Rf5
- 2.Re4#
- 1...Rf6
- 2.Re4#
- 1...Qe2!
- threat
- 1.Sxg4?
- threat
- 2.Rd7#
- 1...Qb4
- 2.Qe3#
- 1...Qe1
- 2.Rd3#
- 1...Qe3
- 2.Qxe3#
- 1...Qe2
- 2.Qc3#
- 1...Re4
- 2.Rxe4#
- 1...Rf5
- 2.Re4#
- 1...Rf6
- 2.Re4#
- 1...Rxg4!
- threat
- 1.Sg6?
- threat
- 2.Rd7#
- 1...Qb4
- 2.Qe3#
- 1...Qe1
- 2.Rd3#
- 1...Qe3
- 2.Qxe3#
- 1...Qe2
- 2.Qc3#
- 1...Re4
- 2.Rxe4#
- 1...Rf5
- 2.Re4#
- 1...Rf6
- 2.Re4#
- 1...fxg6!
- threat
- 1.Sbc4?
- threat
- 2.Rd7#
- 1...Qb4
- 2.Qe3#
- 1...Rf6!
- threat
- 1.Bd5?
- threat
- 2.Sc6#
- 1...Qb4
- 2.Qe3#
- 1...Rf6!
- threat
- 1.Bb7?
- threat
- 2.Sc6#
- 1...Qb4
- 2.Qe3#
- 1...Rf6!
- threat
- 1.Bd7?
- threat
- 2.Sc6#
- 1...Ke4
- 2.Sc6#
- 1...Qb4
- 2.Qe3#
- 1...Rf6!
- threat
- 1.Ba8?
- threat
- 2.Sc6#
- 1...Qb4
- 2.Qe3#
- 1...Rf6!
- threat
- 1.Rxf4+?
- 1...Qxf4
- 2.Qc3#
- 1...gxf4!
- 1...Qxf4
- 1.Sec4?
- Keys
- 1.Sxf7!
- threat
- 2.Rd7#
- 1...Rxf7
- 2.Re4#
- 1...Qb4
- 2.Qe3#
- 1...Qe1
- 2.Rd3#
- 1...Qe3
- 2.Qxe3#
- 1...Qe2
- 2.Qc3#
- 1...Re4
- 2.Rxe4#
- 1...Rf5
- 2.Re4#
- 1...Rf6
- 2.Re4#
- threat
- 1.Sxf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- Q(a);N_GUARD::R1(C)
- Q(a);N_GUARD::QAB1(B),XQ(a)
- Q(a);N_GUARD::QAB1(B)
- Q(a);N_GUARD::R1(C),XQ(a)
- Tries
- Try
- S(F);
- Threat
- R(I)
- Vars
- Q(a);N_GUARD::QAB1(B)
- Q(a);N_GUARD,P_PINR(I)::R1(C)
- Q(a);N_GUARD,P_PINR(I)::QAB1(B),XQ(a)
- R(c);N_GUARD,P_PINR(I)::R1(I),XR(c)
- R(c);N_GUARD::R1(I)
- Refutation
- Q(a);P_PINR(I)
- Try
- S(F);XP(d)
- Threat
- R(I)
- Vars
- Q(a);N_GUARD::QAB1(B)
- Q(a);N_GUARD,P_PINR(I)::R1(C)
- Q(a);N_GUARD,P_PINR(I)::QAB1(B),XQ(a)
- Q(a);N_GUARD,P_PINR(I)::QAB1(B)
- R(c);N_GUARD,P_PINR(I)::R1(I),XR(c)
- R(c);N_GUARD::R1(I)
- Refutation
- R(c);XS(F)
- Try
- S(F);
- Threat
- R(I)
- Vars
- Q(a);N_GUARD::QAB1(B)
- Q(a);N_GUARD,P_PINR(I)::R1(C)
- Q(a);N_GUARD,P_PINR(I)::QAB1(B),XQ(a)
- Q(a);N_GUARD,P_PINR(I)::QAB1(B)
- R(c);N_GUARD,P_PINR(I)::R1(I),XR(c)
- R(c);N_GUARD::R1(I)
- Refutation
- P(g);XS(F)
- Try
- S(G);
- Threat
- R(I)
- Vars
- Q(a);N_GUARD::QAB1(B)
- Refutation
- R(c);
- Try
- B(H);
- Threat
- S(F)
- Vars
- Q(a);N_GUARD::QAB1(B)
- Refutation
- R(c);
- Try
- B(H);
- Threat
- S(F)
- Vars
- Q(a);N_GUARD::QAB1(B)
- Refutation
- R(c);
- Try
- B(H);
- Threat
- S(F)
- Vars
- K(b);P-FLIGHT::R(I)+S(F)
- Q(a);N_GUARD::QAB1(B)
- Refutation
- R(c);
- Try
- B(H);
- Threat
- S(F)
- Vars
- Q(a);N_GUARD::QAB1(B)
- Refutation
- R(c);
- Try
- R(C);CHECK,XR(c)
- Vars
- Q(a);XR(C)::QAB1(B)
- Refutation
- P(f);XR(C)
- Try
- Actual
- S(F);XP(g)
- Threat
- R(I)
- Vars
- R(c);N_GUARD,XS(F)::R1(I)
- Q(a);N_GUARD::QAB1(B)
- Q(a);N_GUARD,P_PINR(I)::R1(C)
- Q(a);N_GUARD,P_PINR(I)::QAB1(B),XQ(a)
- Q(a);N_GUARD,P_PINR(I)::QAB1(B)
- R(c);N_GUARD,P_PINR(I)::R1(I),XR(c)
- R(c);N_GUARD::R1(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).