MESON Chess Problem Database
Problem Display
PID: 139445 (8/8/6P1/K4P2/1R1RB3/2k3rb/5n1Q/7n w - - 0 1)
Witt, Andreas
Troll, 2010
#2
7 + 5
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Qc7#
- 1...Rg2
- 2.Qc7#
- 1...Re3
- 2.Qc7#
- 1...Rf3
- 2.Qc7#
- 1...Rg4
- 2.Qc7#
- 1...Rg5
- 2.Qc7#
- 1...Sd1
- 2.Rdc4#
- 2.Qc2#
- 2.Qd2#
- 1...Sd3
- 2.Rdc4#
- 1...Sxe4
- 2.Qb2#
- 1...Sg4
- 2.Rdc4#
- 2.Qb2#
- 2.Qc2#
- 2.Qd2#
- 1...Rg1
- Tries
- 1.Qxg3+?
- 1...Sd3
- 2.Qxd3#
- 1...Sxg3!
- 1...Sd3
- 1.Qxf2?
- threat
- 2.Rdc4#
- 2.Qe1#
- 2.Qb2#
- 2.Qc2#
- 2.Qd2#
- 1...Rg1
- 2.Rd3#
- 2.Rdc4#
- 2.Qe3#
- 2.Qb2#
- 2.Qc2#
- 2.Qd2#
- 2.Qf3#
- 1...Rg2
- 2.Rd3#
- 2.Rdc4#
- 2.Qe3#
- 2.Qf3#
- 1...Rd3
- 2.Rxd3#
- 2.Rdc4#
- 2.Qb2#
- 1...Re3
- 2.Rdc4#
- 2.Qxe3#
- 2.Qb2#
- 2.Qc2#
- 2.Qd2#
- 1...Bf1
- 2.Qe1#
- 2.Qb2#
- 2.Qc2#
- 2.Qd2#
- 1...Sxf2!
- threat
- 1.Qxg3+?
- Keys
- 1.Rd1!
- 1...Rxg6
- 2.Qe5#
- 1...Bxf5
- 2.Qh8#
- 1...Sxd1
- 2.Qc2#
- 1...Sxe4
- 2.Qb2#
- 1...Rd3
- 2.Qc7#
- 1...Rg1
- 2.Qe5#
- 2.Qc7#
- 1...Rg2
- 2.Qe5#
- 2.Qc7#
- 1...Re3
- 2.Qe5#
- 2.Qc7#
- 1...Rf3
- 2.Qe5#
- 2.Qc7#
- 1...Rg4
- 2.Qe5#
- 2.Qc7#
- 1...Rg5
- 2.Qe5#
- 2.Qc7#
- 1...Bf1
- 2.Qh8#
- 1...Bg2
- 2.Qh8#
- 1...Bg4
- 2.Qh8#
- 1...Sd3
- 2.Qd2#
- 1...Sg4
- 2.Rc1#
- 2.Qb2#
- 2.Qc2#
- 2.Qd2#
- 1...Rxg6
- 1.Rd1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 6
- Sets
- R(d);OGATE::QAR(A)
- R(d);OGATE,P_PINP(F)::QAR(A)
- S(b);::R1(C)
- S(b);OGATE,XB(D)::QAB1(A)
- Tries
- Try
- Q(A);CHECK,XR(d)
- Vars
- S(b);N_GUARD,P_SPINS(b)::QAR1(A),XS(b)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);XS(b)
- Threat
- DUALS(5)
- Refutation
- S(a);XQ(A)
- Try
- Actual
- R(C);
- Vars
- R(d);OGATE,XP(G)::QAB(A)
- B(e);OGATE,XP(F)::QAB(A)
- S(b);OGATE,XR(C)::QAR1(A)
- S(b);OGATE,XB(D)::QAB1(A)
- R(d);OGATE::QAR(A)
- B(e);OGATE::QAB(A)
- S(b);OGATE::QAB1(A)
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).