MESON Chess Problem Database
Problem Display
PID: 260921 (3R4/8/4ppn1/2p1k3/8/R2bB2Q/2pNN2P/2K5 w - - 0 1)
Vollenweider, Odette (aka Baumgartner, Gabriel)
Neue Zurcher Zeitung, 1960
#2
8 + 7
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Be4
- 2.Sc4#
- 1...Sf4
- 2.Bxf4#
- 1...Sh4
- 2.Bf4#
- 1...Se7
- 2.Bf4#
- 1...Sf8
- 2.Bf4#
- 1...Sh8
- 2.Bf4#
- 1...c4
- 2.Bd4#
- 2.Ra5#
- 1...Be4
- Tries
- 1.Sc4+?
- 1...Ke4
- 2.Sc3#
- 1...Bxc4!
- 1...Ke4
- 1.Raxd3?
- 1...Sf4
- 2.Bxf4#
- 1...Sh4
- 2.Bf4#
- 1...Se7
- 2.Bf4#
- 1...Sf8
- 2.Bf4#
- 1...Sh8
- 2.Bf4#
- 1...c4
- 2.Bd4#
- 1...f5!
- 1...Sf4
- 1.Ra5?
- threat
- 2.Bd4#
- 2.Rxc5#
- 1...Bxe2
- 2.Rxc5#
- 1...f5
- 2.Bd4#
- 1...Bc4
- 2.Bd4#
- 1...Be4
- 2.Sc4#
- 2.Bd4#
- 1...Sf4
- 2.Bd4#
- 2.Bxf4#
- 1...Se7
- 2.Bd4#
- 2.Bf4#
- 1...Bb5!
- threat
- 1.Rdxd3?
- 1...Sf4
- 2.Bxf4#
- 1...Sh4
- 2.Bf4#
- 1...Se7
- 2.Bf4#
- 1...Sf8
- 2.Bf4#
- 1...Sh8
- 2.Bf4#
- 1...c4
- 2.Ra5#
- 1...f5!
- 1...Sf4
- 1.Qg4?
- threat
- 2.Sf3#
- 1...Bxe2
- 2.Qe4#
- 1...Be4
- 2.Sc4#
- 2.Qxe4#
- 1...Sf4
- 2.Bxf4#
- 2.Qxf4#
- 1...Sh4
- 2.Bf4#
- 2.Qf4#
- 1...f5!
- threat
- 1.Qf3?
- 1...Bxe2
- 2.Qe4#
- 1...Sf4
- 2.Qxf4#
- 1...Bc4
- 2.Sxc4#
- 2.Qe4#
- 1...Be4
- 2.Sc4#
- 2.Qxe4#
- 1...Bb5
- 2.Qe4#
- 1...Bf5
- 2.Sc4#
- 1...Ba6
- 2.Qe4#
- 1...Sh4
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sh8
- 2.Qf4#
- 1...c4
- 2.Bd4#
- 2.Ra5#
- 1...f5!
- 1...Bxe2
- 1.Qg3+?
- 1...Sf4
- 2.Qxf4#
- 1...Kf5!
- 1...Sf4
- 1.Qh4?
- 1...Kf5
- 2.Qh5#
- 1...Bxe2
- 2.Qe4#
- 1...Bc4
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Bb5
- 2.Qe4#
- 1...Bf5
- 2.Sf3#
- 2.Sc4#
- 1...Ba6
- 2.Qe4#
- 1...Sf4
- 2.Qxf4#
- 1...Se7
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sh8
- 2.Qf4#
- 1...c4
- 2.Ra5#
- 1...f5
- 2.Sf3#
- 1...Sxh4!
- 1...Kf5
- 1.Sc4+?
- Keys
- 1.Bh6!
- 1...Bxe2
- 2.Re3#
- 1...f5
- 2.Bg7#
- 1...Bc4
- 2.Re3#
- 1...Be4
- 2.Sc4#
- 1...Bb5
- 2.Re3#
- 1...Bf5
- 2.Qc3#
- 1...Ba6
- 2.Re3#
- 1...Sf4
- 2.Bxf4#
- 1...Sh4
- 2.Bf4#
- 1...Se7
- 2.Bf4#
- 1...Sf8
- 2.Bf4#
- 1...Sh8
- 2.Bf4#
- 1...c4
- 2.Ra5#
- 1...Bxe2
- 1.Bh6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- B(b);N_GUARD,SBLOCK::S(B)
- S(g);N_GUARD::B(F),XS(g)
- S(g);N_GUARD::B(F)
- Tries
- Try
- S(B);CHECK
- Vars
- K(d);P-FLIGHT,S_CUTB(b)::S(C)
- Refutation
- B(b);XS(B)
- Try
- R(E);XB(b)
- Vars
- S(g);N_GUARD::B(F),XS(g)
- S(g);N_GUARD::B(F)
- P(c);N_GUARD::B(F)
- Refutation
- P(f);
- Try
- R(E);P_PINP(c)
- Threat
- DUALS(2)
- Vars
- B(b);XS(C)::R(E),XP(c)
- P(f);::B(F)
- B(b);::B(F)
- Refutation
- B(b);N_SPINP(c)
- Try
- R(H);XB(b)
- Vars
- S(g);N_GUARD::B(F),XS(g)
- S(g);N_GUARD::B(F)
- P(c);OGATEB::R(E)
- Refutation
- P(f);
- Try
- Q(G);
- Threat
- S(B)
- Vars
- B(b);N_GUARD,XS(C)::QAR1(G)
- Refutation
- P(f);
- Try
- Q(G);
- Vars
- B(b);N_GUARD,XS(C)::QAR1(G)
- S(g);N_GUARD::QAB1(G),XS(g)
- B(b);N_GUARD::QAR1(G)
- B(b);N_GUARD::S(B)
- S(g);N_GUARD::QAB1(G)
- Refutation
- P(f);
- Try
- Q(G);CHECK
- Vars
- S(g);N_GUARD,P_SPINS(g)::QAB1(G),XS(g)
- Refutation
- K(d);P-FLIGHT
- Try
- Q(G);
- Vars
- K(d);P-FLIGHT,S_CUTB(b),S_CUTP(f)::QAR2(G)
- B(b);N_GUARD,XS(C)::QAR1(G)
- B(b);N_GUARD::QAR1(G)
- B(b);N_GUARD::QAR1(G),XB(b)
- S(g);N_GUARD::QAB1(G),XS(g)
- S(g);N_GUARD::QAB1(G)
- P(c);OGATEB::R(E)
- P(f);SBLOCK::S(B)
- Refutation
- S(g);XQ(G)
- Try
- Actual
- B(F);
- Vars
- B(b);OGATE,XS(C)::R(E)
- P(f);OGATEB::B(F)
- B(b);OGATE::R(E)
- B(b);N_GUARD,SBLOCK::S(B)
- B(b);OGATE,SBLOCK::QAB(G)
- S(g);N_GUARD::B(F),XS(g)
- S(g);N_GUARD::B(F)
- P(c);OGATEB::R(E)
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).