MESON Chess Problem Database
Problem Display
PID: 135102 (BKn1N3/8/2r1pB2/3kprR1/bP1pR3/3Q4/2P1P2b/2q5 w - - 0 1)
Ernst, Erich
Badische Neueste Nachrichten, 1999
#2
10 + 10
| 14503 | Problemschach-Jahrbuch (1999) | 2000 |
SOLUTION
- SOUND
- Sets
- 1...Qb2
- 2.c4#
- 1...Qd2
- 2.c4#
- 1...Qa3
- 2.c4#
- 1...Qe3
- 2.c4#
- 1...Qf4
- 2.c4#
- 1...Qxg5
- 2.c4#
- 1...Qa1
- 2.c4#
- 1...Qb1
- 2.c4#
- 1...Qd1
- 2.c4#
- 1...Qe1
- 2.c4#
- 1...Qf1
- 2.c4#
- 1...Qg1
- 2.c4#
- 1...Qh1
- 2.c4#
- 1...Rf1
- 2.Rxd4#
- 2.Qxd4#
- 1...Rf2
- 2.Rxd4#
- 2.Qxd4#
- 1...Rf3
- 2.Rxd4#
- 2.Qxd4#
- 1...Rf4
- 2.Rexe5#
- 2.Rgxe5#
- 2.Qxd4#
- 1...Rxf6
- 2.Rxd4#
- 2.Qxd4#
- 1...Sd6
- 2.Sc7#
- 1...Qb2
- Tries
- 1.Bxe5?
- threat
- 2.Sc7#
- 2.Qxd4#
- 1...Rxe5
- 2.Rxd4#
- 2.Qxd4#
- 1...Qb2
- 2.Sc7#
- 2.c4#
- 1...Qd2
- 2.Sc7#
- 2.c4#
- 1...Qe3
- 2.Sc7#
- 2.c4#
- 1...Qa1
- 2.Sc7#
- 2.c4#
- 1...Qd1
- 2.Sc7#
- 2.c4#
- 1...Qg1
- 2.Sc7#
- 2.c4#
- 1...Rf7
- 2.Rxd4#
- 2.Qxd4#
- 1...Bg1
- 2.Sc7#
- 1...Bxe5+!
- threat
- 1.Reg4?
- threat
- 2.e4#
- 1...Qe3
- 2.c4#
- 1...Qf4
- 2.c4#
- 1...Qe1
- 2.c4#
- 1...Qh1
- 2.c4#
- 1...Rf4
- 2.Rxe5#
- 1...Sd6
- 2.Sc7#
- 1...e4+!
- threat
- 1.Rh4?
- threat
- 2.e4#
- 1...Qe3
- 2.c4#
- 1...Qf4
- 2.c4#
- 1...Qe1
- 2.c4#
- 1...Qh1
- 2.c4#
- 1...Rf4
- 2.Rxe5#
- 1...Sd6
- 2.Sc7#
- 1...e4+!
- threat
- 1.Rxe5+?
- 1...Rxe5
- 2.e4#
- 1...Bxe5+!
- 1...Rxe5
- 1.Rxf5?
- threat
- 2.Rxd4#
- 2.Qxd4#
- 1...Qb2
- 2.c4#
- 1...Qd2
- 2.Rxd4#
- 2.c4#
- 1...Qe3
- 2.c4#
- 1...Qf4
- 2.Qxd4#
- 2.c4#
- 1...Qa1
- 2.c4#
- 1...Qd1
- 2.Rxd4#
- 2.c4#
- 1...Qg1
- 2.c4#
- 1...Bg1
- 2.Rexe5#
- 2.Rfxe5#
- 1...exf5!
- threat
- 1.Bxe5?
- Keys
- 1.Rf4!
- threat
- 2.e4#
- 1...Qxf4
- 2.c4#
- 1...Rxf4
- 2.Rxe5#
- 1...exf4
- 2.Qxd4#
- 1...Qe3
- 2.c4#
- 1...Qe1
- 2.c4#
- 1...Qh1
- 2.c4#
- 1...Sd6
- 2.Sc7#
- 1...e4
- 2.Qxd4#
- threat
- 1.Rf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- Q(a);N_GUARD,P_PINP(D)::P(A)
- Q(a);N_GUARD::P(A)
- Q(a);N_GUARD,XR(F)::P(A)
- S(j);SBLOCK::S(J)
- Tries
- Try
- B(G);P_SPINB(G),XP(f)
- Threat
- DUALS(2)
- Vars
- B(b);N_PINB(G)::S(J)
- Refutation
- B(b);CHECK,XB(G)
- Try
- R(E);
- Threat
- P(B)
- Vars
- Q(a);N_GUARD::P(A)
- R(g);OGATE::R1(F),XP(f)
- S(j);SBLOCK::S(J)
- Refutation
- P(f);CHECK,N_SPINR(h),P_SPINR(g)
- Try
- R(E);
- Threat
- P(B)
- Vars
- Q(a);N_GUARD::P(A)
- R(g);OGATE::R1(F),XP(f)
- S(j);SBLOCK::S(J)
- Refutation
- P(f);CHECK,N_SPINR(h),P_SPINR(g)
- Try
- R(E);CHECK,P_SPINR(E),XP(f)
- Vars
- R(g);N_SPINR(h),P_SPINR(g),XR(E)::P(B)
- Refutation
- B(b);CHECK,XR(E)
- Try
- R(F);XR(g)
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,P_PINP(D)::P(A)
- Q(a);N_GUARD::P(A)
- Refutation
- P(i);XR(F)
- Try
- Actual
- R(E);
- Threat
- P(B)
- Vars
- Q(a);N_GUARD,XR(E)::P(A)
- R(g);OGATE,XR(E)::R1(F),XP(f)
- P(f);N_GUARD,N_SPINR(h),P_SPINR(g),XR(E)::QAR1(C),XP(d)
- Q(a);N_GUARD::P(A)
- S(j);SBLOCK::S(J)
- P(f);N_GUARD,N_SPINR(h),P_PINR(E),P_SPINR(g)::QAR1(C),XP(d)
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).