MESON Chess Problem Database
Problem Display
PID: 256555 (1n6/1Q6/p5pb/K3p2q/1Pk1p3/1p1N2R1/4Pr2/BR3N1b w - - 0 1)
Dittrich, Stefan
Muller, Dieter
1st Prize, Springaren, 1979-1982
#2
9 + 11
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qxe2
- 2.Sxe5#
- 1...Qf3
- 2.Sxe5#
- 1...Qg4
- 2.Sxe5#
- 1...Qh2
- 2.Sxe5#
- 1...Qh3
- 2.Sxe5#
- 1...Qh4
- 2.Sxe5#
- 1...Rxe2
- 2.Qf7#
- 1...Rg2
- 2.Qxe4#
- 2.Qf7#
- 1...Rh2
- 2.Qf7#
- 1...Rf3
- 2.Qxe4#
- 1...Rf4
- 2.Sd2#
- 2.Se3#
- 2.Rc1#
- 1...Rf7
- 2.Qxf7#
- 1...Bf3
- 2.Qf7#
- 1...Bc1
- 2.Rxc1#
- 1...Bd2
- 2.Sxd2#
- 1...Be3
- 2.Sxe3#
- 1...Bf4
- 2.Qf7#
- 1...Bg5
- 2.Sxe5#
- 1...Bg7
- 2.Sd2#
- 2.Se3#
- 2.Rc1#
- 1...Bf8
- 2.Sd2#
- 2.Se3#
- 2.Rc1#
- 1...Sc6+
- 2.Qxc6#
- 1...exd3
- 2.exd3#
- 1...e3
- 2.Rc1#
- 1...g5
- 2.Sd2#
- 2.Se3#
- 2.Sxe5#
- 2.Rc1#
- 1...Qxe2
- Tries
- 1.Sf4?
- threat
- 2.Sd2#
- 2.Se3#
- 2.Rc1#
- 2.Qd5#
- 2.Qf7#
- 1...Sc6+
- 2.Qxc6#
- 1...Qxe2
- 2.Qd5#
- 2.Qf7#
- 1...Rxf1
- 2.Qd5#
- 2.Qf7#
- 1...Rxe2
- 2.Qd5#
- 2.Qf7#
- 1...Rxf4
- 2.Sd2#
- 2.Se3#
- 2.Rc1#
- 1...Bxf4
- 2.Qf7#
- 1...b2
- 2.Qd5#
- 1...Qf3
- 2.Sd2#
- 2.Qd5#
- 2.Qf7#
- 1...Qg4
- 2.Sd2#
- 2.Se3#
- 2.Rc1#
- 2.Qd5#
- 1...Qh3
- 2.Sd2#
- 2.Se3#
- 2.Rc1#
- 2.Qd5#
- 1...Qf5
- 2.Sd2#
- 2.Se3#
- 2.Rc1#
- 2.Qd5#
- 1...Rf3
- 2.Sd2#
- 2.Qxe4#
- 2.Qd5#
- 2.Qf7#
- 1...Sd7
- 2.Sd2#
- 2.Se3#
- 2.Rc1#
- 2.Qd5#
- 2.Qxa6#
- 1...e3
- 2.Sxe3#
- 2.Rc1#
- 1...g5
- 2.Sd2#
- 2.Se3#
- 2.Rc1#
- 2.Qd5#
- 1...exf4+!
- threat
- 1.Qc8+?
- 1...Sc6+
- 2.Qxc6#
- 1...Kd5!
- 1...Sc6+
- 1.Qc7+?
- 1...Sc6+
- 2.Qxc6#
- 1...Kd5!
- 1...Sc6+
- 1.Qd7?
- threat
- 2.Sb2#
- 2.Qe6#
- 1...Sc6+
- 2.Qxc6#
- 1...Qxe2
- 2.Sxe5#
- 2.Qe6#
- 1...Rxe2
- 2.Qe6#
- 2.Qf7#
- 1...exd3
- 2.Qxd3#
- 2.exd3#
- 1...b2
- 2.Sxb2#
- 1...Qf5
- 2.Sb2#
- 1...Qf3
- 2.Sxe5#
- 2.Qe6#
- 1...Qg4
- 2.Sb2#
- 2.Sxe5#
- 1...Qh3
- 2.Sb2#
- 2.Sxe5#
- 1...Rf3
- 2.Qe6#
- 1...Rf6
- 2.Sb2#
- 1...Bf3
- 2.Qe6#
- 2.Qf7#
- 1...Bc1
- 2.Rxc1#
- 2.Qe6#
- 1...Be3
- 2.Sxe3#
- 2.Qe6#
- 1...e3
- 2.Rc1#
- 1...Sxd7!
- threat
- 1.Sf4?
- Keys
- 1.Rd1!
- threat
- 2.Sb2#
- 1...Sc6+
- 2.Qxc6#
- 1...Qxe2
- 2.Sxe5#
- 1...Rxe2
- 2.Qf7#
- 1...exd3
- 2.exd3#
- 1...b2
- 2.Sxb2#
- 1...Qf3
- 2.Sxe5#
- 1...Rf3
- 2.Qxe4#
- 1...Bf3
- 2.Qf7#
- 1...Bc1
- 2.Rxc1#
- 1...Bd2
- 2.Sxd2#
- 1...Be3
- 2.Sxe3#
- 1...e3
- 2.Rc1#
- threat
- 1.Rd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- Q(g);N_GUARD,XP(D)::S(E),XP(f)
- Q(g);N_GUARD::S(E),XP(f)
- R(b);N_GUARD,XP(D)::QAB(I)
- R(b);N_GUARD::QAB(I)
- R(b);S_CUTB(a)::QAR2(I),XP(e)
- R(b);N_GUARD::QAB(I),XR(b)
- B(a);S_CUTR(b)::QAB(I)
- B(j);N_GUARD::R(B),XB(j)
- B(j);N_GUARD,P_PINP(G)::S(C),XB(j)
- B(j);N_GUARD::S(C),XB(j)
- B(j);S_CUTR(b)::QAB(I)
- B(j);S_CUTQ(g)::S(E),XP(f)
- S(k);CHECK,N_GUARD::QAR2(I),XS(k)
- P(e);OGATE,XS(E)::P(D),XP(e)
- P(e);S_CUTB(j)::R(B)
- Tries
- Try
- S(E);
- Threat
- DUALS(5)
- Vars
- S(k);CHECK,N_GUARD::QAR2(I),XS(k)
- B(j);XS(E)::QAB(I)
- P(c);::QAB1(I)
- Refutation
- P(f);CHECK,XS(E)
- Try
- Q(I);CHECK
- Vars
- S(k);CHECK,N_GUARD,P_SPINS(k)::QAR2(I),XS(k)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(I);CHECK
- Vars
- S(k);CHECK,N_GUARD,P_SPINS(k)::QAR2(I),XS(k)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- S(k);CHECK,N_GUARD::QAR2(I),XS(k)
- P(c);::S(E),XP(c)
- Q(g);::S(E)
- R(b);::QAB(I)
- R(b);::S(E)
- P(e);S_CUTB(j)::R(B)
- Refutation
- S(k);XQ(I)
- Try
- Actual
- R(B);
- Threat
- S(E)
- Vars
- S(k);CHECK,N_GUARD::QAR2(I),XS(k)
- Q(g);N_GUARD,XP(D)::S(E),XP(f)
- R(b);N_GUARD,XP(D)::QAB(I)
- P(e);OGATE,XS(E)::P(D),XP(e)
- P(c);::S(E),XP(c)
- Q(g);N_GUARD::S(E),XP(f)
- R(b);S_CUTB(a)::QAR2(I),XP(e)
- B(a);S_CUTR(b)::QAB(I)
- B(j);N_GUARD::R(B),XB(j)
- B(j);N_GUARD,P_PINP(G)::S(C),XB(j)
- B(j);N_GUARD::S(C),XB(j)
- P(e);S_CUTB(j)::R(B)
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).