MESON Chess Problem Database
Problem Display
PID: 159710 (5B1n/P3N3/5k1N/2p1p3/1p1pK2P/qR4pB/2PR1p2/Q7 w - - 0 1)
Anonymous
BCPJ (June), 1919
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Rf3#
- 2.Qa6#
- 1...Qb2
- 2.Rf3#
- 2.Qa6#
- 1...Qxa1
- 2.Rf3#
- 1...Qa2
- 2.Rf3#
- 1...Qa4
- 2.Rf3#
- 1...Qa5
- 2.Rf3#
- 1...Qa6
- 2.Rf3#
- 2.Qxa6#
- 1...Qxa7
- 2.Rf3#
- 1...Sg6
- 2.Sd5#
- 2.Seg8#
- 1...Sf7
- 2.Shg8#
- 1...f1Q
- 2.Qxf1#
- 1...f1S
- 2.Qxf1#
- 1...f1B
- 2.Qxf1#
- 1...f1R
- 2.Qxf1#
- 1...g2
- 2.Rxf2#
- 1...d3
- 2.Qxe5#
- 1...Qc1
- Tries
- 1.Rdd3?
- threat
- 2.Rf3#
- 1...f1Q
- 2.Qxf1#
- 1...f1R
- 2.Qxf1#
- 1...Qc1
- 2.Qa6#
- 1...Sg6
- 2.Sd5#
- 2.Seg8#
- 1...Qxb3!
- threat
- 1.Rxa3?
- threat
- 2.Rf3#
- 2.Ra6#
- 1...f1Q
- 2.Qxf1#
- 1...f1B
- 2.Rf3#
- 2.Qxf1#
- 1...f1R
- 2.Ra6#
- 2.Qxf1#
- 1...Sg6
- 2.Sd5#
- 2.Seg8#
- 2.Ra6#
- 1...Sf7
- 2.Shg8#
- 2.Rf3#
- 1...b3
- 2.Ra6#
- 1...d3
- 2.Ra6#
- 2.Qxe5#
- 1...bxa3!
- threat
- 1.Qd1?
- threat
- 2.Qf3#
- 1...f1Q
- 2.Qxf1#
- 1...f1R
- 2.Qxf1#
- 1...Sg6
- 2.Sd5#
- 2.Seg8#
- 1...Qxb3!
- threat
- 1.Qh1?
- threat
- 2.Qf3#
- 1...f1Q
- 2.Qxf1#
- 1...f1R
- 2.Qxf1#
- 1...Sg6
- 2.Sd5#
- 2.Seg8#
- 1...g2
- 2.Rxf2#
- 1...Qxb3!
- threat
- 1.Qxa3?
- threat
- 2.Rf3#
- 2.Qa6#
- 1...bxa3
- 2.Rf3#
- 2.Rb6#
- 1...f1B
- 2.Rf3#
- 1...f1R
- 2.Qa6#
- 1...Sg6
- 2.Sd5#
- 2.Seg8#
- 2.Qa6#
- 1...Sf7
- 2.Shg8#
- 2.Rf3#
- 1...d3
- 2.Qa6#
- 1...f1Q!
- threat
- 1.Rdd3?
- Keys
- 1.c4!
- 1...Qxa1
- 2.Rf3#
- 1...Qxb3
- 2.Qa6#
- 1...Qxa7
- 2.Rf3#
- 1...bxc4 ep
- 2.Rb6#
- 1...dxc4 ep
- 2.Rd6#
- 1...f1Q
- 2.Qxf1#
- 1...f1S
- 2.Qxf1#
- 1...f1B
- 2.Qxf1#
- 1...f1R
- 2.Qxf1#
- 1...Qc1
- 2.Rf3#
- 2.Qa6#
- 1...Qb2
- 2.Rf3#
- 2.Qa6#
- 1...Qa2
- 2.Rf3#
- 1...Qa4
- 2.Rf3#
- 1...Qa5
- 2.Rf3#
- 1...Qa6
- 2.Rf3#
- 2.Qxa6#
- 1...Sg6
- 2.Sd5#
- 2.Seg8#
- 1...Sf7
- 2.Shg8#
- 1...g2
- 2.Rxf2#
- 1...d3
- 2.Qxe5#
- 1...Qxa1
- 1.c4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Q(b);N_GUARD,XQ(A)::R(D)
- Q(b);N_GUARD::R(D)
- Q(b);N_GUARD,XP(I)::R(D)
- S(i);SBLOCK::S(H)
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XS(a)
- P(a);OGATEB::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- P(c);N_GUARD::R(C),XP(a)
- P(e);OGATE,P_SPINP(g)::QAB1(A),XP(g)
- Tries
- Try
- R(C);
- Threat
- R(C)
- Vars
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XR(a)
- Q(b);OGATE::QAR(A)
- Refutation
- Q(b);XR(D)
- Try
- R(D);XQ(b)
- Threat
- DUALS(2)
- Vars
- P(a);OGATEB::QAR(A),XQ(a)
- P(d);::R(D)
- Refutation
- P(d);XR(D)
- Try
- Q(A);
- Threat
- QAR(A)
- Vars
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XR(a)
- Refutation
- Q(b);XR(D)
- Try
- Q(A);
- Threat
- QAR(A)
- Vars
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XR(a)
- P(c);N_GUARD::R(C),XP(a)
- Refutation
- Q(b);XR(D)
- Try
- Q(A);XQ(b)
- Threat
- DUALS(2)
- Vars
- P(a);::R(D)
- P(a);::QAR(A)
- P(e);::QAR(A)
- Refutation
- P(a);
- Try
- Actual
- P(B);
- Vars
- Q(b);N_GUARD,XQ(A)::R(D)
- Q(b);OGATE,XR(D)::QAR(A)
- Q(b);N_GUARD,XP(I)::R(D)
- P(d);EP,OGATE,XP(B)::R(D)
- P(e);EP,OGATE,XP(B)::R(C)
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XS(a)
- P(a);OGATEB::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- Q(b);N_GUARD::R(D)
- S(i);SBLOCK::S(H)
- P(c);N_GUARD::R(C),XP(a)
- P(e);OGATE,P_SPINP(g)::QAB1(A),XP(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).