MESON Chess Problem Database
Problem Display
PID: 261620 (1n4b1/BQ6/2rp4/1p6/B6R/3k4/4n3/3NK3 w - - 0 1)
Baumann, Hannes
Schweizerische Schachzeitung, 1975
#2
6 + 7
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Qf3#
- 2.Qe4#
- 1...Rc2
- 2.Qf3#
- 2.Qe4#
- 1...Rc3
- 2.Sb2#
- 2.Sf2#
- 2.Qf3#
- 2.Qe4#
- 1...Rc4
- 2.Qf3#
- 1...Rc5
- 2.Qf3#
- 2.Qe4#
- 1...Ra6
- 2.Qf3#
- 2.Qe4#
- 1...Rb6
- 2.Qf3#
- 2.Qe4#
- 1...Rc7
- 2.Qf3#
- 2.Qe4#
- 1...Rc8
- 2.Qf3#
- 2.Qe4#
- 1...Ba2
- 2.Qh7#
- 1...Bb3
- 2.Qh7#
- 1...Bc4
- 2.Qh7#
- 1...Bh7
- 2.Qxh7#
- 1...Sc1
- 2.Rd4#
- 1...Sg1
- 2.Rd4#
- 1...Sc3
- 2.Sb2#
- 2.Sf2#
- 2.Rd4#
- 1...Sg3
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Rc1
- Tries
- 1.Bc2+?
- 1...Rxc2
- 2.Qf3#
- 2.Qe4#
- 1...Kxc2!
- 1...Rxc2
- 1.Bxb5+?
- 1...Rc4
- 2.Qe4#
- 1...Bc4
- 2.Qh7#
- 1...Kc2!
- 1...Rc4
- 1.Qxc6?
- threat
- 2.Sb2#
- 2.Sf2#
- 2.Bc2#
- 2.Qf3#
- 2.Qe4#
- 2.Qc2#
- 1...bxa4
- 2.Sb2#
- 2.Sf2#
- 2.Qe4#
- 1...Bd5
- 2.Sb2#
- 2.Sf2#
- 2.Bc2#
- 2.Qc2#
- 1...Bb3
- 2.Sb2#
- 2.Sf2#
- 2.Qe4#
- 1...Bc4
- 2.Qf3#
- 2.Qe4#
- 1...Bh7
- 2.Sb2#
- 2.Sf2#
- 2.Bc2#
- 2.Bxb5#
- 2.Qf3#
- 2.Qxb5#
- 2.Qc2#
- 1...Sg1
- 2.Sb2#
- 2.Sf2#
- 2.Bc2#
- 2.Rd4#
- 2.Qe4#
- 2.Qc2#
- 2.Qc3#
- 1...Sc3
- 2.Sb2#
- 2.Sf2#
- 2.Rh3#
- 2.Rd4#
- 2.Qf3#
- 2.Qxc3#
- 1...Sg3
- 2.Sb2#
- 2.Sf2#
- 2.Bc2#
- 2.Rd4#
- 2.Qf3#
- 2.Qc2#
- 2.Qc3#
- 1...Sd4
- 2.Rxd4#
- 2.Qc3#
- 1...Sf4
- 2.Sb2#
- 2.Sf2#
- 2.Bc2#
- 2.Qc2#
- 1...d5
- 2.Sb2#
- 2.Sf2#
- 2.Bc2#
- 2.Bxb5#
- 2.Qxb5#
- 2.Qc2#
- 2.Qg6#
- 1...Sxc6!
- threat
- 1.Qxb5+?
- 1...Bc4
- 2.Qb1#
- 2.Qf5#
- 1...Rc4!
- 1...Bc4
- 1.Qg7?
- threat
- 2.Sb2#
- 2.Sf2#
- 2.Qg6#
- 1...bxa4
- 2.Qg6#
- 1...Bb3
- 2.Qg6#
- 2.Qh7#
- 1...Sd4
- 2.Rxd4#
- 2.Qxd4#
- 1...Sf4
- 2.Qd4#
- 1...Bd5
- 2.Sb2#
- 2.Sf2#
- 1...Rc1
- 2.Qg6#
- 1...Rc2
- 2.Sf2#
- 2.Qg6#
- 1...Rc4
- 2.Sb2#
- 2.Sf2#
- 1...Rb6
- 2.Qg6#
- 1...Be6
- 2.Sb2#
- 2.Sf2#
- 1...Bf7
- 2.Sb2#
- 2.Sf2#
- 1...Bh7
- 2.Sb2#
- 2.Sf2#
- 2.Qxh7#
- 1...Sc3
- 2.Sb2#
- 2.Sf2#
- 2.Rd4#
- 2.Qd4#
- 2.Qg3#
- 1...Sg3
- 2.Sb2#
- 2.Sf2#
- 2.Rd4#
- 2.Qd4#
- 2.Qxg3#
- 1...d5
- 2.Sb2#
- 2.Sf2#
- 1...Rc5!
- threat
- 1.Bc2+?
- Keys
- 1.Rc4!
- threat
- 2.Sb2#
- 1...Kxc4
- 2.Qxb5#
- 1...Rxc4
- 2.Qf3#
- 1...Bxc4
- 2.Qh7#
- 1...bxc4
- 2.Qb1#
- 1...Sd4
- 2.Rxd4#
- 1...Rc5
- 2.Qe4#
- 1...Rb6
- 2.Qe4#
- threat
- 1.Rc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 6
- Sets
- R(d);OGATE::QAR2(F)
- B(g);N_GUARD::QAB(F)
- B(g);N_GUARD::QAB(F),XB(g)
- S(a);N_GUARD::R1(D)
- S(a);N_GUARD::R1(D),XS(a)
- Tries
- Try
- B(C);CHECK
- Refutation
- K(b);S_FLIGHT,XB(C)
- Try
- B(C);CHECK,XP(c)
- Vars
- R(d);OGATE,P_SPINR(d)::QAB1(F)
- B(g);P_SPINB(g)::QAB(F)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(F);XR(d)
- Threat
- DUALS(6)
- Refutation
- S(f);XQ(F)
- Try
- Q(F);CHECK,XP(c)
- Refutation
- R(d);P_SPINR(d)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- P(c);XB(C)::QAB(F)
- S(a);N_GUARD::QAR1(F)
- R(d);P_PINS(A)::QAB(F)
- R(d);::QAB(F)
- Refutation
- R(d);
- Try
- Actual
- R(D);
- Threat
- S(A)
- Vars
- K(b);OGATEB,S_FLIGHT,XR(D)::QAB1(F),XP(c)
- R(d);OGATE,SBLOCK,XR(D)::QAR2(F)
- B(g);N_GUARD,SBLOCK,XR(D)::QAB(F)
- P(c);OGATE,SBLOCK,XR(D)::QAB(F)
- S(a);N_GUARD::R1(D),XS(a)
- R(d);OGATE::QAB1(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).