MESON Chess Problem Database
Problem Display
PID: 205844 (n1Q2bb1/2n1p3/2k5/R3P3/8/pB6/K1P5/2R3B1 w - - 0 1)
Degener, Udo
Troll, 2019
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Bxb3+
- 2.cxb3#
- 1...Bd5
- 2.Bxd5#
- 1...Bh7
- 2.Ba4#
- 2.Bd5#
- 1...Sb6
- 2.Rc5#
- 1...e6
- 2.Ba4#
- 1...Bxb3+
- Tries
- 1.Ka1?
- threat
- 2.Ba4#
- 1...Bxb3
- 2.cxb3#
- 1...Sb6
- 2.Rc5#
- 1...Bc4!
- threat
- 1.Ba7?
- threat
- 2.Rc5#
- 1...Bxb3+
- 2.cxb3#
- 1...e6
- 2.Ba4#
- 1...Sb6!
- threat
- 1.Bxg8?
- threat
- 2.Bd5#
- 1...Sb6
- 2.Rc5#
- 1...e6!
- threat
- 1.Ra6+?
- 1...Sb6
- 2.Rxb6#
- 1...Kb5!
- 1...Sb6
- 1.Qe8+?
- 1...Kb7
- 2.Ra7#
- 1...Sxe8!
- 1...Kb7
- 1.Ka1?
- Keys
- 1.c4!
- threat
- 2.Ba4#
- 1...Bxc4
- 2.Rxc4#
- 1...Sb6
- 2.Rc5#
- threat
- 1.c4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- B(g);CHECK,OGATE,XB(E)::R(A)+P(D),XB(g)
- B(g);N_GUARD::B(E),XB(g)
- S(e);SBLOCK::R1(F)
- P(d);N_PINB(E)::B(E)
- Tries
- Try
- K(C);N_SPINB(E),P-FLIGHT
- Threat
- B(E)
- Vars
- B(g);OGATE,XB(E)::R(A)+P(D),XB(g)
- S(e);SBLOCK::R1(F)
- Refutation
- B(g);
- Try
- B(B);
- Threat
- R1(F)
- Vars
- B(g);CHECK,OGATE,XB(E)::R(A)+P(D),XB(g)
- P(d);N_PINB(E)::B(E)
- Refutation
- S(e);
- Try
- B(E);N_SPINB(E),XB(g)
- Threat
- B(E)
- Vars
- S(e);SBLOCK::R1(F)
- Refutation
- P(d);
- Try
- R(F);CHECK
- Vars
- S(e);N_GUARD,N_SPINS(c),P_SPINS(e)::R1(F),XS(e)
- Refutation
- K(b);N_SPINS(c),S_FLIGHT
- Try
- Q(H);CHECK,N_PINS(c)
- Vars
- K(b);S_FLIGHT::R1(F)
- Refutation
- S(c);XQ(H)
- Try
- Actual
- P(D);N_SPINB(E)
- Threat
- B(E)
- Vars
- B(g);OGATE,P_PINB(E),P_SPINB(g),XP(D)::R(A),XB(g)
- S(e);SBLOCK::R1(F)
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).