MESON Chess Problem Database
Problem Display
PID: 174038 (2K3B1/B7/5p2/3R1N2/2N1k1br/r1q4p/6P1/5Q2 w - - 0 1)
Bottacchi, Antonio
Il Problema, 1932
#2
8 + 7
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.Sd2#
- 2.Sd6#
- 1...Qe1
- 2.Sd6#
- 2.Rd4#
- 1...Qb2
- 2.Sd6#
- 1...Qd2
- 2.Sxd2#
- 2.Sd6#
- 1...Qb4
- 2.Rd4#
- 1...Qd4
- 2.Sd6#
- 2.Rxd4#
- 1...Qa5
- 2.Sd6#
- 2.Rd4#
- 1...Qe5
- 2.Sd2#
- 1...Qc1
- 2.Rd4#
- 1...Qc2
- 2.Rd4#
- 1...Qb3
- 2.Sd2#
- 2.Sd6#
- 2.Rd4#
- 1...Qd3
- 2.Sd6#
- 1...Qe3
- 2.Sd6#
- 1...Qg3
- 2.Sd2#
- 2.Rd4#
- 1...Qxc4+
- 2.Qxc4#
- 1...Bd1
- 2.Sd6#
- 1...Be2
- 2.Sd6#
- 1...Bxf5+
- 2.Qxf5#
- 1...Bh5
- 2.Sd6#
- 1...Qa1
- Tries
- 1.Be3?
- threat
- 2.Qf4#
- 1...Qxc4+
- 2.Qxc4#
- 1...Bxf5+
- 2.Qxf5#
- 1...Qxe3
- 2.Sd6#
- 1...Qd4
- 2.Sd6#
- 2.Rxd4#
- 1...Qe5
- 2.Sd2#
- 1...Bd1
- 2.Sg3#
- 2.Sd6#
- 1...Be2
- 2.Sg3#
- 2.Sd6#
- 1...Bf3
- 2.Sg3#
- 2.Sd6#
- 2.Qxf3#
- 2.gxf3#
- 1...Bh5
- 2.Sg3#
- 2.Sd6#
- 1...Ra8+!
- threat
- 1.Re5+?
- 1...Qxe5
- 2.Sd2#
- 1...fxe5!
- 1...Qxe5
- 1.Qd3+?
- 1...Kf4
- 2.Be3#
- 1...Qxd3!
- 1...Kf4
- 1.g3?
- threat
- 2.Qf4#
- 1...Bxf5+
- 2.Qxf5#
- 1...Qxg3
- 2.Sd2#
- 2.Rd4#
- 1...Qd2
- 2.Sxd2#
- 2.Sd6#
- 1...Qd4
- 2.Sd6#
- 2.Rxd4#
- 1...Qe5
- 2.Sd2#
- 1...Qc1
- 2.Rd4#
- 1...Qe3
- 2.Sd6#
- 1...Qf3
- 2.Sd2#
- 2.Sd6#
- 1...Bd1
- 2.Sd6#
- 1...Be2
- 2.Sd6#
- 1...Bf3
- 2.Sd6#
- 1...Bh5
- 2.Sd6#
- 1...Qxc4+!
- threat
- 1.Be3?
- Keys
- 1.Bb8!
- threat
- 2.Qf4#
- 1...Qxc4+
- 2.Qxc4#
- 1...Bxf5+
- 2.Qxf5#
- 1...Qd2
- 2.Sxd2#
- 2.Sd6#
- 1...Qd4
- 2.Sd6#
- 2.Rxd4#
- 1...Qe5
- 2.Sd2#
- 1...Qc1
- 2.Rd4#
- 1...Qe3
- 2.Sd6#
- 1...Qf3
- 2.Sd2#
- 1...Qg3
- 2.Sd2#
- 2.Rd4#
- 1...Bd1
- 2.Sd6#
- 1...Be2
- 2.Sd6#
- 1...Bf3
- 2.Sg3#
- 1...Bh5
- 2.Sd6#
- threat
- 1.Bb8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- Q(b);N_PINS(C),P_PINS(E)::S(C)
- Q(b);N_GUARD,N_PINS(C),P_PINS(E)::R1(D)
- Q(b);N_GUARD::R1(D)
- Q(b);CHECK,OGATE,P_PINS(E),XS(C)::QAR2(A),XQ(b)
- B(e);::S(E)
- B(e);CHECK,OGATE,XS(E)::QAB1(A),XB(e)
- Tries
- Try
- B(F);
- Threat
- QAR1(A)
- Vars
- Q(b);CHECK,OGATE,P_PINS(E),XS(C)::QAR2(A),XQ(b)
- B(e);CHECK,OGATE,XS(E)::QAB1(A),XB(e)
- Q(b);N_PINS(C),P_PINS(E),XB(F)::S(C)
- Q(b);N_PINS(C),P_PINS(E)::S(C)
- Refutation
- R(a);CHECK
- Try
- R(D);CHECK
- Vars
- Q(b);N_PINS(C),P_PINS(E),SBLOCK,XR(D)::S(C)
- Refutation
- P(g);XR(D)
- Try
- Q(A);CHECK
- Vars
- K(d);P-FLIGHT::B(F)
- Refutation
- Q(b);N_PINS(C),P_PINS(E),XQ(A)
- Try
- P(B);
- Threat
- QAR1(A)
- Vars
- B(e);CHECK,OGATE,XS(E)::QAB1(A),XB(e)
- Q(b);N_PINS(C),P_PINS(E)::S(C)
- Q(b);N_GUARD::R1(D)
- B(e);::S(E)
- Refutation
- Q(b);CHECK,P_PINS(E),XS(C)
- Try
- Actual
- B(F);
- Threat
- QAR1(A)
- Vars
- Q(b);CHECK,OGATE,P_PINS(E),XS(C)::QAR2(A),XQ(b)
- B(e);CHECK,OGATE,XS(E)::QAB1(A),XB(e)
- Q(b);N_PINS(C),P_PINS(E)::S(C)
- Q(b);N_GUARD::R1(D)
- B(e);::S(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).