MESON Chess Problem Database
Problem Display
PID: 175653 (2QN1K2/3P4/3p1k2/1p4p1/1P3P2/3B1p2/5B1R/b6q w - - 0 1)
Erdey, Aladar
Pesti Naplo, 1900
#2
9 + 7
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qg2
- 2.Rh6#
- 1...Qb1
- 2.Rh6#
- 1...Qc1
- 2.Rh6#
- 1...Qd1
- 2.Rh6#
- 1...Qe1
- 2.Rh6#
- 1...Qf1
- 2.Rh6#
- 1...Qg1
- 2.Rh6#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Bxd4#
- 1...g4
- 2.Bh4#
- 1...d5
- 2.Qa6#
- 2.Qc6#
- 1...Qg2
- Tries
- 1.Sc6?
- threat
- 2.d8Q#
- 2.d8B#
- 1...Qxh2
- 2.d8Q#
- 2.d8B#
- 1...gxf4
- 2.d8Q#
- 2.d8B#
- 1...Qg2
- 2.Rh6#
- 2.d8Q#
- 2.d8B#
- 1...Qb1
- 2.Rh6#
- 2.d8Q#
- 2.d8B#
- 1...Qc1
- 2.Rh6#
- 2.d8Q#
- 2.d8B#
- 1...Qd1
- 2.Rh6#
- 2.d8Q#
- 2.d8B#
- 1...Qe1
- 2.Rh6#
- 1...Qf1
- 2.Rh6#
- 2.d8Q#
- 2.d8B#
- 1...Qg1
- 2.Rh6#
- 2.d8Q#
- 2.d8B#
- 1...Bb2
- 2.d8Q#
- 2.d8B#
- 1...Bc3
- 2.d8Q#
- 2.d8B#
- 1...Bd4
- 2.d8Q#
- 2.d8B#
- 1...Be5
- 2.d8Q#
- 2.d8B#
- 1...g4
- 2.d8Q#
- 2.d8B#
- 1...d5
- 2.d8Q#
- 2.d8B#
- 1...Ke6!
- threat
- 1.Sf7?
- threat
- 2.d8Q#
- 2.d8B#
- 1...Qxh2
- 2.d8Q#
- 2.d8B#
- 1...gxf4
- 2.d8Q#
- 2.d8B#
- 1...Qg2
- 2.Rh6#
- 2.d8Q#
- 2.d8B#
- 1...Qb1
- 2.Rh6#
- 2.d8Q#
- 2.d8B#
- 1...Qc1
- 2.Rh6#
- 2.d8Q#
- 2.d8B#
- 1...Qd1
- 2.Rh6#
- 2.d8Q#
- 2.d8B#
- 1...Qe1
- 2.Rh6#
- 1...Qf1
- 2.Rh6#
- 2.d8Q#
- 2.d8B#
- 1...Qg1
- 2.Rh6#
- 2.d8Q#
- 2.d8B#
- 1...Bb2
- 2.d8Q#
- 2.d8B#
- 1...Bc3
- 2.d8Q#
- 2.d8B#
- 1...Bd4
- 2.d8Q#
- 2.d8B#
- 1...Be5
- 2.d8Q#
- 2.d8B#
- 1...g4
- 2.d8Q#
- 2.d8B#
- 1...d5
- 2.Qa6#
- 2.Qc6#
- 2.d8Q#
- 2.d8B#
- 1...Ke6!
- threat
- 1.Qc4?
- threat
- 2.Qe6#
- 2.Qf7#
- 1...gxf4
- 2.Qxf4#
- 1...Qe1
- 2.Rh6#
- 2.Qf7#
- 1...d5
- 2.Qc6#
- 1...bxc4!
- threat
- 1.Sc6?
- Keys
- 1.Qc1!
- 1...Qxc1
- 2.Rh6#
- 1...Qxh2
- 2.Qxa1#
- 1...gxf4
- 2.Qxf4#
- 1...Qg2
- 2.Rh6#
- 2.Qxa1#
- 1...Qd1
- 2.Rh6#
- 1...Qe1
- 2.Rh6#
- 1...Qf1
- 2.Rh6#
- 1...Qg1
- 2.Rh6#
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Bxd4#
- 1...Be5
- 2.fxg5#
- 1...g4
- 2.Bh4#
- 1...d5
- 2.Qc6#
- 1...Qxc1
- 1.Qc1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 2
- Sets
- Q(b);N_GUARD::R(B)
- B(a);N_GUARD::QAB(G),XB(a)
- B(a);N_GUARD::B(A),XB(a)
- P(e);OGATEB::B(A)
- Tries
- Try
- S(H);
- Threat
- P=Q
- Vars
- Q(b);XR(B)::P=Q
- P(e);XP(E)::P=Q
- Q(b);N_GUARD::R(B)
- B(a);::P=Q
- P(e);::P=Q
- P(f);::P=Q
- Refutation
- K(g);P-FLIGHT
- Try
- S(H);
- Threat
- P=Q
- Vars
- Q(b);XR(B)::P=Q
- P(e);XP(E)::P=Q
- Q(b);N_GUARD::R(B)
- B(a);::P=Q
- P(e);::P=Q
- Refutation
- K(g);P-FLIGHT
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- P(e);OGATE,XP(E)::QAR2(G),XP(e)
- P(f);OGATEB::QAR(G)
- Refutation
- P(d);XQ(G)
- Try
- Actual
- Q(G);
- Vars
- Q(b);N_GUARD,XQ(G)::R(B)
- Q(b);N_GUARD,XR(B)::QAB(G),XB(a)
- P(e);OGATE,XP(E)::QAR2(G),XP(e)
- Q(b);N_GUARD::R(B)
- B(a);N_GUARD::QAB(G),XB(a)
- B(a);N_GUARD::B(A),XB(a)
- B(a);SBLOCK::P(E),XP(e)
- P(e);OGATEB::B(A)
- P(f);OGATEB::QAR(G)
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).