MESON Chess Problem Database
Problem Display
PID: 235188 (2b2R2/2np3N/r7/q5p1/2PPk2p/1R6/3pPQ2/5NbK w - - 0 1)
Gruber, Lutz-Dieter
Schach, 2010
#2
9 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qc3
- 2.Sxg5#
- 1...Qb4
- 2.Sxg5#
- 1...Qb6
- 2.Sxd2#
- 2.Sxg5#
- 1...Qa1
- 2.Sxd2#
- 2.Sxg5#
- 1...Qa2
- 2.Sxg5#
- 1...Qa3
- 2.Sxd2#
- 2.Sxg5#
- 1...Qa4
- 2.Sxd2#
- 2.Sxg5#
- 1...Qb5
- 2.Sxd2#
- 1...Qc5
- 2.Sxd2#
- 1...Qd5
- 2.Sxd2#
- 1...Qe5
- 2.Sxd2#
- 1...Qf5
- 2.Sxd2#
- 1...Rf6
- 2.Sxf6#
- 1...Ra7
- 2.Sf6#
- 1...Ra8
- 2.Sf6#
- 1...Bh2
- 2.Qe3#
- 1...Sb5
- 2.Sxg5#
- 1...Sd5
- 2.Sxg5#
- 1...Se6
- 2.Sf6#
- 1...h3
- 2.Sg3#
- 1...g4
- 2.Rf4#
- 2.Qf4#
- 1...d5
- 2.Sxg5#
- 1...d6
- 2.Sf6#
- 1...Qc3
- Tries
- 1.Kxg1?
- threat
- 2.Qe3#
- 1...Qc3
- 2.Sxg5#
- 1...Rf6
- 2.Sxf6#
- 1...Sd5
- 2.Sxg5#
- 1...d1S!
- threat
- 1.Rd3?
- threat
- 2.Qg2#
- 2.Qf3#
- 1...Qf5
- 2.Sxd2#
- 2.Qxf5#
- 1...Rf6
- 2.Sxf6#
- 1...h3
- 2.Sg3#
- 2.Qf3#
- 1...g4
- 2.Rf4#
- 2.Qg2#
- 2.Qf4#
- 1...Bxf2!
- threat
- 1.Re8+?
- 1...Qe5
- 2.Sxd2#
- 2.Sxg5#
- 2.Rxe5#
- 1...Re6
- 2.Sf6#
- 1...Se6
- 2.Sf6#
- 1...Sxe8!
- 1...Qe5
- 1.Qxg1?
- threat
- 2.Qe3#
- 2.Qg4#
- 1...Qf5
- 2.Qe3#
- 1...d1S
- 2.Qg4#
- 1...Qc3
- 2.Sxg5#
- 2.Qg4#
- 1...Qe5
- 2.Sxd2#
- 2.Qe3#
- 1...Sd5
- 2.Sxg5#
- 1...Se6
- 2.Qe3#
- 1...g4
- 2.Qe3#
- 2.Qxg4#
- 1...d5
- 2.Sxg5#
- 2.Qe3#
- 1...d6
- 2.Qe3#
- 1...Rf6!
- threat
- 1.Qxh4+?
- 1...g4
- 2.Qxg4#
- 1...gxh4!
- 1...g4
- 1.Kxg1?
- Keys
- 1.Rg3!
- threat
- 2.Rg4#
- 1...hxg3
- 2.Sxg3#
- 1...Qe5
- 2.Sxd2#
- 1...Qf5
- 2.Sxd2#
- 1...Rf6
- 2.Sxf6#
- 1...Bh2
- 2.Qe3#
- 1...Sd5
- 2.Sxg5#
- 1...Se6
- 2.Sf6#
- 1...g4
- 2.Rxg4#
- 2.Rf4#
- 2.Qf4#
- 1...d5
- 2.Sxg5#
- 1...d6
- 2.Sf6#
- threat
- 1.Rg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- Q(e);N_GUARD::S(H),XP(f)
- Q(e);N_GUARD::S(A),XP(b)
- R(g);N_GUARD::S(H),XR(g)
- R(g);N_GUARD::S(H)
- B(a);N_GUARD::QAR1(D)
- S(h);S_CUTQ(e)::S(H),XP(f)
- S(h);S_CUTR(g)::S(H)
- P(d);N_GUARD::S(A)
- P(i);S_CUTQ(e)::S(H),XP(f)
- P(i);S_CUTR(g)::S(H)
- Tries
- Try
- K(B);P-FLIGHT,XB(a)
- Threat
- QAR1(D)
- Vars
- Q(e);N_GUARD::S(H),XP(f)
- R(g);N_GUARD::S(H),XR(g)
- S(h);S_CUTQ(e)::S(H),XP(f)
- Refutation
- P(b);
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- R(g);N_GUARD::S(H),XR(g)
- Refutation
- B(a);XQ(D)
- Try
- R(I);CHECK
- Vars
- R(g);P_SPINR(g)::S(H)
- S(h);P_SPINS(h)::S(H)
- Refutation
- S(h);XR(I)
- Try
- Q(D);XB(a)
- Threat
- DUALS(2)
- Vars
- Q(e);::QAR1(D)
- P(b);::QAR2(D)
- S(h);S_CUTQ(e)::S(H),XP(f)
- S(h);::QAR1(D)
- P(i);::QAR1(D)
- Refutation
- R(g);
- Try
- Q(D);CHECK,XP(d)
- Vars
- P(f);P_SPINP(f)::QAR2(D),XP(f)
- Refutation
- P(f);XQ(D)
- Try
- Actual
- R(E);
- Threat
- R(E)
- Vars
- P(d);XR(E)::S(A),XP(d)
- Q(e);N_GUARD::S(A),XP(b)
- R(g);N_GUARD::S(H),XR(g)
- B(a);N_GUARD::QAR1(D)
- S(h);S_CUTQ(e)::S(H),XP(f)
- S(h);S_CUTR(g)::S(H)
- P(i);S_CUTQ(e)::S(H),XP(f)
- P(i);S_CUTR(g)::S(H)
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).