MESON Chess Problem Database
Problem Display
PID: 170033 (N1K1b3/1n4n1/N1kb3Q/8/P7/7B/2r5/3R4 w - - 0 1)
Zacour, Antonio
Enroque!!, 1946
#2
7 + 6
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Bg2#
- 1...Rg2
- 2.Bxg2#
- 1...Rc5
- 2.Sb4#
- 2.Sb8#
- 1...Bh5
- 2.Bd7#
- 1...Bg6
- 2.Bd7#
- 1...Bd7+
- 2.Bxd7#
- 1...Bf7
- 2.Bd7#
- 1...Sa5
- 2.Rxd6#
- 2.Qxd6#
- 1...Sc5
- 2.Sb4#
- 2.Sb8#
- 2.Rxd6#
- 2.Qxd6#
- 1...Sd8
- 2.Rxd6#
- 2.Qxd6#
- 1...Rc1
- Tries
- 1.Qd2?
- threat
- 2.Bg2#
- 2.Qd5#
- 1...Bd7+
- 2.Bxd7#
- 1...Rc3
- 2.Qd5#
- 1...Rc4
- 2.Qd5#
- 1...Rc5
- 2.Sb4#
- 1...Bh5
- 2.Bd7#
- 2.Qd5#
- 1...Bg6
- 2.Bd7#
- 2.Qd5#
- 1...Bf7
- 2.Bd7#
- 1...Sc5
- 2.Sb4#
- 2.Qd5#
- 2.Qxd6#
- 1...Rxd2!
- threat
- 1.Qe3?
- threat
- 2.Qb6#
- 2.Qf3#
- 2.Qe4#
- 1...Bd7+
- 2.Bxd7#
- 1...Rb2
- 2.Qf3#
- 2.Qe4#
- 1...Re2
- 2.Qb6#
- 1...Rf2
- 2.Qb6#
- 2.Qe4#
- 1...Rc3
- 2.Bg2#
- 2.Qb6#
- 2.Qe4#
- 1...Rc4
- 2.Qb6#
- 1...Rc5
- 2.Sb4#
- 1...Bc5
- 2.Sb8#
- 2.Qf3#
- 2.Qe4#
- 1...Bc7
- 2.Sb4#
- 2.Qf3#
- 2.Qe4#
- 1...Bh5
- 2.Bd7#
- 2.Qb6#
- 2.Qe4#
- 1...Bg6
- 2.Bd7#
- 2.Qb6#
- 1...Bf7
- 2.Bd7#
- 2.Qb6#
- 1...Sc5
- 2.Sb4#
- 1...Rd2!
- threat
- 1.Qh5?
- threat
- 2.Qf3#
- 2.Qb5#
- 2.Qd5#
- 1...Bd7+
- 2.Bxd7#
- 1...Bxh5
- 2.Bd7#
- 1...Rb2
- 2.Qf3#
- 2.Qd5#
- 1...Rd2
- 2.Qb5#
- 1...Re2
- 2.Qb5#
- 2.Qd5#
- 1...Rf2
- 2.Qb5#
- 2.Qd5#
- 1...Rc3
- 2.Qb5#
- 2.Qd5#
- 1...Rc4
- 2.Qb5#
- 2.Qd5#
- 1...Rc5
- 2.Sb4#
- 1...Bc5
- 2.Sb8#
- 2.Qf3#
- 2.Qd5#
- 1...Be5
- 2.Qf3#
- 1...Bg6
- 2.Bd7#
- 2.Qb5#
- 2.Qd5#
- 1...Bf7
- 2.Bd7#
- 2.Qb5#
- 1...Sc5
- 2.Sb4#
- 2.Qd5#
- 1...Sf5
- 2.Qf3#
- 2.Qxe8#
- 1...Sxh5!
- threat
- 1.Qd2?
- Keys
- 1.Qc1!
- threat
- 2.Bg2#
- 1...Bd7+
- 2.Bxd7#
- 1...Bc5
- 2.Sb8#
- 1...Bh5
- 2.Bd7#
- 1...Bg6
- 2.Bd7#
- 1...Bf7
- 2.Bd7#
- 1...Sc5
- 2.Sb4#
- threat
- 1.Qc1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- R(a);N_GUARD::B(B)
- R(a);N_GUARD::B(B),XR(a)
- B(f);N_GUARD::B(B)
- B(f);N_GUARD,N_SPINB(c)::B(B)
- B(f);CHECK,N_GUARD::B(B),XB(f)
- Tries
- Try
- Q(E);N_PINB(c)
- Threat
- DUALS(2)
- Vars
- B(f);CHECK,N_GUARD::B(B),XB(f)
- R(a);::QAB1(E)
- R(a);SBLOCK,S_CUTB(c)::S(D)
- B(f);N_GUARD::B(B)
- Refutation
- R(a);XQ(E)
- Try
- Q(E);N_PINB(c)
- Threat
- DUALS(3)
- Vars
- B(f);CHECK,N_GUARD::B(B),XB(f)
- R(a);::QAR1(E)
- R(a);S_CUTB(c)::S(D)
- S(d);S_CUTB(c)::S(D)
- Refutation
- R(a);
- Try
- Q(E);N_PINB(c)
- Threat
- DUALS(3)
- Vars
- B(f);CHECK,N_GUARD::B(B),XB(f)
- B(f);N_GUARD,XQ(E)::B(B)
- R(a);::QAB1(E)
- R(a);S_CUTB(c)::S(D)
- B(c);::QAB(E)
- Refutation
- S(e);XQ(E)
- Try
- Actual
- Q(E);N_PINB(c),P_PINR(a)
- Threat
- B(B)
- Vars
- B(f);CHECK,N_GUARD::B(B),XB(f)
- B(c);N_GUARD,N_SPINR(a),SBLOCK::S(D)
- B(f);N_GUARD::B(B)
- S(d);N_SPINR(a),SBLOCK,S_CUTB(c)::S(D)
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).