MESON Chess Problem Database
Problem Display
PID: 261310 (8/2p5/5N2/2p1K2p/Q3P3/BbrBkp2/R4N1R/8 w - - 0 1)
Notaro, Rosario
Neue Zurcher Zeitung, 1986
#2
9 + 7
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Bxc1#
- 1...Rc4
- 2.Sd5#
- 1...Bd1
- 2.Sd5#
- 1...Bc2
- 2.Bc1#
- 1...Bxa4
- 2.Sd5#
- 1...Bc4
- 2.Bxc5#
- 1...Bd5
- 2.Sxd5#
- 1...c4
- 2.Sd5#
- 2.Bc5#
- 1...h4
- 2.S6g4#
- 1...Rc1
- Tries
- 1.Sd1+?
- 1...Kxd3
- 2.Rad2#
- 2.Rhd2#
- 1...Bxd1!
- 1...Kxd3
- 1.S2g4+?
- 1...Kxd3
- 2.Rad2#
- 2.Rhd2#
- 1...hxg4!
- 1...Kxd3
- 1.Bc4?
- threat
- 2.Sd5#
- 2.Bxc5#
- 1...Rxc4
- 2.Sd5#
- 1...Bxa2
- 2.Sd1#
- 1...Bxc4
- 2.Bxc5#
- 1...Rc2
- 2.Sd1#
- 1...Bc2
- 2.Bc1#
- 1...c6
- 2.Bxc5#
- 1...Rd3!
- threat
- 1.Qxb3?
- threat
- 2.Sd5#
- 1...Rc2
- 2.Sd1#
- 1...c6!
- threat
- 1.Qb5?
- 1...Rxd3
- 2.Qxd3#
- 1...Bxa2
- 2.Sd1#
- 1...Rc2
- 2.Sd1#
- 1...Bc2
- 2.Bc1#
- 1...Rc1
- 2.Bxc1#
- 1...Rc4
- 2.Sd5#
- 1...Bd1
- 2.Sxd1#
- 2.Sd5#
- 1...Ba4
- 2.Sd5#
- 1...Bc4
- 2.Bxc5#
- 2.Qxc5#
- 1...Bd5
- 2.Sd1#
- 2.Sxd5#
- 1...Be6
- 2.Sd1#
- 1...Bf7
- 2.Sd1#
- 1...Bg8
- 2.Sd1#
- 1...c4
- 2.Sd5#
- 2.Bc5#
- 2.Qc5#
- 1...h4
- 2.S2g4#
- 2.S6g4#
- 1...c6!
- 1...Rxd3
- 1.Qd7?
- 1...Rxd3
- 2.Qxd3#
- 1...Bxa2
- 2.Sd1#
- 1...Rc2
- 2.Sd1#
- 1...Bc2
- 2.Bc1#
- 1...Rc1
- 2.Bxc1#
- 1...Rc4
- 2.Sd5#
- 1...Bd1
- 2.Sxd1#
- 2.Sd5#
- 1...Ba4
- 2.Sd5#
- 1...Bc4
- 2.Sd1#
- 2.Bxc5#
- 1...Bd5
- 2.Sxd5#
- 1...Be6
- 2.Sd1#
- 1...Bf7
- 2.Sd1#
- 1...Bg8
- 2.Sd1#
- 1...c4
- 2.Sd5#
- 2.Bc5#
- 2.Qd4#
- 1...h4
- 2.S2g4#
- 2.S6g4#
- 1...c6!
- 1...Rxd3
- 1.Qa6?
- 1...Rxd3
- 2.Qxd3#
- 1...Bxa2
- 2.Sd1#
- 1...Rc2
- 2.Sd1#
- 1...Bc2
- 2.Bc1#
- 1...Rc1
- 2.Bxc1#
- 1...Rc4
- 2.Sd5#
- 1...Bd1
- 2.Sxd1#
- 2.Sd5#
- 1...Ba4
- 2.Sd5#
- 1...Bc4
- 2.Bxc5#
- 1...Bd5
- 2.Sd1#
- 2.Sxd5#
- 1...Be6
- 2.Sd1#
- 1...Bf7
- 2.Sd1#
- 1...Bg8
- 2.Sd1#
- 1...c4
- 2.Sd5#
- 2.Bc5#
- 1...h4
- 2.S2g4#
- 2.S6g4#
- 1...c6!
- 1...Rxd3
- 1.Sd1+?
- Keys
- 1.Qc4!
- threat
- 2.Sd5#
- 2.Bxc5#
- 1...Rxd3
- 2.Qxd3#
- 1...Rxc4
- 2.Sd5#
- 1...Bxa2
- 2.Sd1#
- 1...Bxc4
- 2.Bxc5#
- 1...Rc2
- 2.Sd1#
- 1...Bc2
- 2.Bc1#
- 1...c6
- 2.Bxc5#
- threat
- 1.Qc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 5
- Sets
- R(b);N_GUARD::B(D),XR(b)
- R(b);S_CUTB(a)::S(I)
- B(a);N_GUARD::S(I)
- B(a);S_CUTR(b)::B(D)
- B(a);N_GUARD,XQ(F)::S(I)
- B(a);S_CUTR(b)::B(D),XP(e)
- B(a);N_GUARD::S(I),XB(a)
- P(f);N_GUARD::S(I)
- Tries
- Try
- S(B);CHECK
- Refutation
- B(a);XS(B)
- Try
- S(B);CHECK
- Refutation
- P(f);XS(B)
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- R(b);XB(E)::S(I)
- B(a);N_GUARD,XR(A)::S(B)
- B(a);XB(E)::B(D),XP(e)
- R(b);S_CUTB(a)::S(B)
- B(a);S_CUTR(b)::B(D)
- P(g);::B(D),XP(e)
- Refutation
- R(b);
- Try
- Q(F);XB(a)
- Threat
- S(I)
- Vars
- R(b);::S(B)
- Refutation
- P(g);
- Try
- Q(F);
- Vars
- R(b);OGATE,XB(E)::QAR1(F),XR(b)
- B(a);N_GUARD,XR(A)::S(B)
- R(b);S_CUTB(a)::S(B)
- B(a);S_CUTR(b)::B(D)
- R(b);N_GUARD::B(D),XR(b)
- R(b);S_CUTB(a)::S(I)
- B(a);N_GUARD::S(I)
- B(a);N_GUARD::S(B)
- Refutation
- P(g);
- Try
- Q(F);
- Vars
- R(b);OGATE,XB(E)::QAR1(F),XR(b)
- B(a);N_GUARD,XR(A)::S(B)
- R(b);S_CUTB(a)::S(B)
- B(a);S_CUTR(b)::B(D)
- R(b);N_GUARD::B(D),XR(b)
- R(b);S_CUTB(a)::S(I)
- B(a);N_GUARD::S(I)
- B(a);N_GUARD::S(I),XB(a)
- B(a);N_GUARD::S(B)
- Refutation
- P(g);
- Try
- Q(F);
- Vars
- R(b);OGATE,XB(E)::QAR1(F),XR(b)
- B(a);N_GUARD,XR(A)::S(B)
- R(b);S_CUTB(a)::S(B)
- B(a);S_CUTR(b)::B(D)
- R(b);N_GUARD::B(D),XR(b)
- R(b);S_CUTB(a)::S(I)
- B(a);N_GUARD::S(I)
- B(a);S_CUTR(b)::B(D),XP(e)
- B(a);N_GUARD::S(B)
- Refutation
- P(g);
- Try
- Actual
- Q(F);
- Threat
- DUALS(2)
- Vars
- R(b);OGATE,XB(E)::QAR1(F),XR(b)
- R(b);XQ(F)::S(I)
- B(a);N_GUARD,XR(A)::S(B)
- B(a);XQ(F)::B(D),XP(e)
- R(b);S_CUTB(a)::S(B)
- B(a);S_CUTR(b)::B(D)
- P(g);::B(D),XP(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).