MESON Chess Problem Database
Problem Display
PID: 270069 (rr1Q4/pkP5/3b3R/q2P4/2N5/3N3K/2n5/R5B1 w - - 0 1)
Chicco, Adriano
Norsk Sjakkblad, 1934
#2
9 + 7
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Sxd6#
- 1...Qd2
- 2.Sxd6#
- 1...Qc3
- 2.Sxd6#
- 1...Qb5
- 2.Sxd6#
- 1...Bh2
- 2.Sxa5#
- 1...Ba3
- 2.Sxa5#
- 1...Bg3
- 2.Sxa5#
- 1...Bf4
- 2.Sxa5#
- 1...Bc5
- 2.Sxa5#
- 1...Be5
- 2.Sxa5#
- 1...Be7
- 2.Sxa5#
- 1...Bf8
- 2.Sxa5#
- 1...a6
- 2.Sxa5#
- 2.Sxd6#
- 1...Qe1
- Tries
- 1.Sc5+?
- 1...Bxc5
- 2.Sxa5#
- 1...Qxc5!
- 1...Bxc5
- 1.Qxb8+?
- 1...Ka6
- 2.Sc5#
- 2.Rxa5#
- 2.Rxd6#
- 2.c8Q#
- 2.c8B#
- 1...Rxb8!
- 1...Ka6
- 1.cxb8Q+?
- 1...Ka6
- 2.Sc5#
- 2.Rxa5#
- 2.Rxd6#
- 2.Qxa5#
- 2.Qdxd6#
- 2.Qdc8#
- 1...Bxb8
- 2.Sxa5#
- 1...Rxb8!
- 1...Ka6
- 1.cxb8R+?
- 1...Ka6
- 2.Sc5#
- 2.Rxa5#
- 2.Rxd6#
- 2.Qxa5#
- 2.Qxd6#
- 2.Qc8#
- 1...Bxb8
- 2.Sxa5#
- 1...Rxb8!
- 1...Ka6
- 1.Sc5+?
- Keys
- 1.Qd7!
- threat
- 2.c8Q#
- 2.c8B#
- 1...Ka6
- 2.Sc5#
- 1...Qxc7
- 2.Sxd6#
- 1...Qxa1
- 2.c8Q#
- 2.c8B#
- 1...Qxd5
- 2.c8Q#
- 2.c8B#
- 1...Bxc7
- 2.Sxa5#
- 1...Sxa1
- 2.c8Q#
- 2.c8B#
- 1...Qe1
- 2.Sxd6#
- 2.c8Q#
- 2.c8B#
- 1...Qd2
- 2.Sxd6#
- 2.c8Q#
- 2.c8B#
- 1...Qc3
- 2.Sxd6#
- 2.c8Q#
- 2.c8B#
- 1...Qb4
- 2.c8Q#
- 2.c8B#
- 1...Qb6
- 2.c8Q#
- 2.c8B#
- 1...Qa2
- 2.c8Q#
- 2.c8B#
- 1...Qa3
- 2.c8Q#
- 2.c8B#
- 1...Qa4
- 2.c8Q#
- 2.c8B#
- 1...Qb5
- 2.Sxd6#
- 2.c8Q#
- 2.c8B#
- 1...Qc5
- 2.c8Q#
- 2.c8B#
- 1...Qa6
- 2.c8Q#
- 2.c8B#
- 1...Rc8
- 2.Qc6#
- 1...Bh2
- 2.Sxa5#
- 2.c8Q#
- 2.c8B#
- 1...Ba3
- 2.Sxa5#
- 2.c8Q#
- 2.c8B#
- 1...Bg3
- 2.Sxa5#
- 2.c8Q#
- 2.c8B#
- 1...Bb4
- 2.c8Q#
- 2.c8B#
- 1...Bf4
- 2.Sxa5#
- 2.c8Q#
- 2.c8B#
- 1...Bc5
- 2.Sxa5#
- 2.c8Q#
- 2.c8B#
- 1...Be5
- 2.Sxa5#
- 2.c8Q#
- 2.c8B#
- 1...Be7
- 2.Sxa5#
- 2.c8Q#
- 2.c8B#
- 1...Bf8
- 2.Sxa5#
- 2.c8Q#
- 2.c8B#
- 1...Se1
- 2.c8Q#
- 2.c8B#
- 1...Sa3
- 2.c8Q#
- 2.c8B#
- 1...Se3
- 2.c8Q#
- 2.c8B#
- 1...Sb4
- 2.c8Q#
- 2.c8B#
- 1...Sd4
- 2.c8Q#
- 2.c8B#
- 1...a6
- 2.Sxa5#
- 2.Sxd6#
- 2.c8Q#
- 2.c8B#
- threat
- 1.Qd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 12
- Sets
- Q(b);::S(E),XB(c)
- Q(b);P_PINS(C)::S(E),XB(c)
- B(c);::S(E),XQ(b)
- Tries
- Try
- S(C);CHECK
- Vars
- B(c);XS(C)::S(E),XQ(b)
- Refutation
- Q(b);XS(C)
- Try
- Q(I);CHECK,XR(g)
- Refutation
- R(f);XQ(I)
- Try
- P(H);CHECK,XR(g)
- Vars
- B(c);XQ(H)::S(E),XQ(b)
- Refutation
- R(f);XQ(H)
- Try
- P(H);CHECK,XR(g)
- Vars
- B(c);XR(H)::S(E),XQ(b)
- Refutation
- R(f);XR(H)
- Try
- Actual
- Q(I);
- Threat
- P=Q
- Vars
- K(e);P_SPINB(c),P_SPINQ(b),S_FLIGHT::S(C)
- Q(b);P_SPINQ(b),XP(H)::S(E),XB(c)
- Q(b);XR(A)::P=Q
- Q(b);XP(F)::P=Q
- B(c);P_SPINB(c),XP(H)::S(E),XQ(b)
- S(a);XR(A)::P=Q
- Q(b);::P=Q
- Q(b);P_PINS(C)::P=Q
- R(g);SBLOCK::QAB1(I)
- B(c);::P=Q
- S(a);::P=Q
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).