MESON Chess Problem Database
Problem Display
PID: 11814 (6b1/2p1KB2/1pR5/1prP4/1pk5/4Qn2/1BP2n2/4rN2 w - - 0 1)
Fabel, Karl
1st Comm., KeyStip 06. Ty., 1972
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qb3#
- 1...Rb1
- 2.Qb3#
- 1...Rc1
- 2.Qb3#
- 1...Rd1
- 2.Qb3#
- 1...Rxf1
- 2.Qb3#
- 1...Rxe3+
- 2.Sxe3#
- 1...Bh7
- 2.d6#
- 1...Se4
- 2.Qb3#
- 2.Qd3#
- 1...Sg1
- 2.Sd2#
- 1...Sd2
- 2.Sxd2#
- 1...Sh2
- 2.Sd2#
- 1...Sd4
- 2.Sd2#
- 1...Sh4
- 2.Sd2#
- 1...Se5
- 2.Sd2#
- 2.Qd4#
- 2.Qb3#
- 1...Sg5
- 2.Sd2#
- 1...Ra1
- Tries
- 1.Kd8?
- threat
- 2.Qb3#
- 1...Rxe3
- 2.Sxe3#
- 1...b3
- 2.Qxb3#
- 2.Qc3#
- 1...Sd3
- 2.Qxd3#
- 1...Sd2
- 2.Sxd2#
- 2.Qd4#
- 1...Sd4
- 2.Sd2#
- 2.Qxd4#
- 1...Rxc6!
- threat
- 1.Kf8?
- threat
- 2.Qb3#
- 1...Rxe3
- 2.Sxe3#
- 1...b3
- 2.Qxb3#
- 2.Qc3#
- 1...Sd3
- 2.Qxd3#
- 1...Sd2
- 2.Sxd2#
- 2.Qd4#
- 1...Sd4
- 2.Sd2#
- 2.Qxd4#
- 1...Rxc6!
- threat
- 1.Be6?
- threat
- 2.Qb3#
- 1...Rxe3
- 2.Sxe3#
- 1...b3
- 2.Qxb3#
- 2.Qc3#
- 1...Sd3
- 2.Qxd3#
- 1...Sd2
- 2.Sxd2#
- 2.Qd4#
- 1...Sd4
- 2.Sd2#
- 2.Qxd4#
- 1...Rxc6!
- threat
- 1.Bxg8?
- threat
- 2.d6#
- 1...Rxe3+
- 2.Sxe3#
- 1...Rd1
- 2.Qb3#
- 1...Sd4
- 2.Sd2#
- 1...Se5
- 2.Sd2#
- 2.Qd4#
- 2.Qb3#
- 1...Sg5
- 2.Sd2#
- 1...b3!
- threat
- 1.Qxe1?
- threat
- 2.Se3#
- 1...Sd1
- 2.Qe2#
- 1...Sg4
- 2.Qe2#
- 1...Rxc6!
- threat
- 1.Qe2+?
- 1...Sd3
- 2.Se3#
- 1...Rxe2+!
- 1...Sd3
- 1.Kd8?
- Keys
- 1.Re6!
- threat
- 2.Qb3#
- 1...Kxd5
- 2.Rd6#
- 1...Rxe3
- 2.Sxe3#
- 1...Rxd5
- 2.Rc6#
- 1...b3
- 2.Qxb3#
- 1...Rc6
- 2.Rxc6#
- 1...Sd3
- 2.Qxd3#
- 1...Sd2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- threat
- 1.Re6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 5
- REMOVED MATES = 10
- Sets
- R(a);N_PINQ(D)::QAB1(D)
- R(a);N_PINQ(D),XS(A)::QAB1(D)
- R(a);CHECK,XQ(D)::S(A),XR(a)
- B(j);N_GUARD::B(H)+P(E)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- Tries
- Try
- K(G);N_SPINQ(D),S_FLIGHT
- Threat
- QAB1(D)
- Vars
- R(a);XQ(D)::S(A),XR(a)
- S(b);N_GUARD::QAB1(D),XS(b)
- Refutation
- R(g);N_SPINR(g),XR(F)
- Try
- K(G);N_SPINQ(D),S_FLIGHT
- Threat
- QAB1(D)
- Vars
- R(a);XQ(D)::S(A),XR(a)
- S(b);N_GUARD::QAB1(D),XS(b)
- Refutation
- R(g);N_SPINR(g),XR(F)
- Try
- B(H);N_SPINQ(D)
- Threat
- QAB1(D)
- Vars
- R(a);P_PINB(H),XQ(D)::S(A),XR(a)
- S(b);N_GUARD::QAB1(D),XS(b)
- Refutation
- R(g);N_SPINR(g),XR(F)
- Try
- B(H);XB(j)
- Threat
- B(H)+P(E)
- Vars
- R(a);CHECK,XQ(D)::S(A),XR(a)
- R(a);N_PINQ(D)::QAB1(D)
- S(c);N_GUARD::S(A)
- Refutation
- P(d);
- Try
- Q(D);N_SPINQ(D),XR(a)
- Threat
- S(A)
- Vars
- S(b);N_GUARD::QAB(D)
- Refutation
- R(g);N_SPINR(g),XR(F)
- Try
- Q(D);CHECK
- Vars
- S(b);P_SPINS(b)::S(A)
- Refutation
- R(a);CHECK,XQ(D)
- Try
- Actual
- R(F);N_PINR(g),N_SPINQ(D)
- Threat
- QAB1(D)
- Vars
- K(e);OGATEB,S_FLIGHT,XP(E)::B(H)+R(F),DCHECK
- R(a);P_PINR(F),XQ(D)::S(A),XR(a)
- R(g);OGATEB,XP(E)::R(F)
- P(d);::QAB1(D),XP(d)
- R(g);OGATEB::R(F),XR(g)
- S(b);N_GUARD::QAB1(D),XS(b)
- S(c);N_GUARD::QAR1(D)
- S(c);N_GUARD::QAR1(D),XS(c)
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).