MESON Chess Problem Database
Problem Display
PID: 232499 (5q2/4rQB1/3b2R1/2PpN1r1/1N6/2p1p3/2K1P3/k7 w - - 0 1)
Groth, Reinhard
Freie Presse, 1979
#2
8 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxg7
- 2.Qf1#
- 1...Qa8
- 2.Qf1#
- 1...Qb8
- 2.Qf1#
- 1...Qc8
- 2.Qf1#
- 1...Qd8
- 2.Qf1#
- 1...Qe8
- 2.Qf1#
- 1...Qg8
- 2.Qf1#
- 1...Qh8
- 2.Qf1#
- 1...Rg1
- 2.Rxg1#
- 1...Rgxe5
- 2.Rg1#
- 1...Rh5
- 2.Rg1#
- 1...Rexe5
- 2.Qa7#
- 1...Re6
- 2.Qa7#
- 1...Ra7
- 2.Qxa7#
- 1...Re8
- 2.Qa7#
- 1...Bxc5
- 2.Ra6#
- 1...Bxe5
- 2.Ra6#
- 1...Bb8
- 2.Ra6#
- 1...d4
- 2.Qa2#
- 1...Qxg7
- Tries
- 1.Sc4?
- threat
- 2.Bxc3#
- 1...Qxg7
- 2.Qf1#
- 1...Qh8
- 2.Qf1#
- 1...Rge5
- 2.Rg1#
- 1...Ree5
- 2.Qa7#
- 1...Be5
- 2.Ra6#
- 1...d4!
- threat
- 1.Sg4?
- threat
- 2.Bxc3#
- 1...Qxg7
- 2.Qf1#
- 1...Qh8
- 2.Qf1#
- 1...Ree5
- 2.Qa7#
- 1...Be5
- 2.Ra6#
- 1...d4
- 2.Qa2#
- 1...Rge5!
- threat
- 1.Sec6?
- threat
- 2.Bxc3#
- 1...Qxg7
- 2.Qf1#
- 1...Qh8
- 2.Qf1#
- 1...Rge5
- 2.Rg1#
- 1...Ree5
- 2.Qa7#
- 1...d4
- 2.Qa2#
- 1...Be5!
- threat
- 1.Sd7?
- threat
- 2.Bxc3#
- 1...Qxg7
- 2.Qf1#
- 1...Qh8
- 2.Qf1#
- 1...Rge5
- 2.Rg1#
- 1...Be5
- 2.Ra6#
- 1...d4
- 2.Qa2#
- 1...Ree5!
- threat
- 1.Rxd6?
- threat
- 2.Ra6#
- 1...Qa8
- 2.Qf1#
- 1...Qc8
- 2.Qf1#
- 1...Qd8
- 2.Qf1#
- 1...Qe8
- 2.Qf1#
- 1...Re6
- 2.Qa7#
- 1...Ra7
- 2.Qxa7#
- 1...Rg6!
- threat
- 1.Qxd5?
- threat
- 2.Qa2#
- 2.Qd1#
- 1...Qf1
- 2.Qa2#
- 1...Qf7
- 2.Qd1#
- 1...Qa8
- 2.Qd1#
- 1...Qg8
- 2.Qd1#
- 1...Rg1
- 2.Qa2#
- 1...Ra7
- 2.Qd1#
- 1...Qf5+!
- threat
- 1.Sc4?
- Keys
- 1.Sed3!
- threat
- 2.Bxc3#
- 1...Qxg7
- 2.Qf1#
- 1...Qh8
- 2.Qf1#
- 1...Rge5
- 2.Rg1#
- 1...Ree5
- 2.Qa7#
- 1...Be5
- 2.Ra6#
- 1...d4
- 2.Qa2#
- threat
- 1.Sed3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 13
- Sets
- Q(h);N_GUARD,XB(H)::QAR(G)
- Q(h);N_GUARD::QAR(G)
- R(e);OGATE::R(F),XR(e)
- R(e);OGATE,XS(E)::R(F)
- R(e);OGATE::R(F)
- R(g);OGATE,XS(E)::QAR(G)
- R(g);OGATE::QAR(G)
- R(g);OGATE::QAR(G),XR(g)
- B(f);OGATE,XP(D)::R(F)
- B(f);OGATE,XS(E)::R(F)
- B(f);OGATE::R(F)
- P(d);OGATE::QAR1(G)
- Tries
- Try
- S(E);P_PINP(b)
- Threat
- B(H),XP(b)
- Vars
- Q(h);N_GUARD,N_SPINP(b),XB(H)::QAR(G)
- Q(h);N_GUARD::QAR(G)
- R(e);N_SPINP(b),OGATE::R(F)
- R(g);N_SPINP(b),OGATE::QAR(G)
- B(f);N_SPINP(b),OGATE::R(F)
- Refutation
- P(d);N_SPINP(b)
- Try
- S(E);P_PINP(b)
- Threat
- B(H),XP(b)
- Vars
- Q(h);N_GUARD,N_SPINP(b),XB(H)::QAR(G)
- Q(h);N_GUARD::QAR(G)
- R(g);N_SPINP(b),OGATE::QAR(G)
- B(f);N_SPINP(b),OGATE::R(F)
- P(d);N_SPINP(b),OGATE::QAR1(G)
- Refutation
- R(e);N_SPINP(b)
- Try
- S(E);P_PINP(b)
- Threat
- B(H),XP(b)
- Vars
- Q(h);N_GUARD,N_SPINP(b),XB(H)::QAR(G)
- Q(h);N_GUARD::QAR(G)
- R(e);N_SPINP(b),OGATE::R(F)
- R(g);N_SPINP(b),OGATE::QAR(G)
- P(d);N_SPINP(b),OGATE::QAR1(G)
- Refutation
- B(f);N_SPINP(b)
- Try
- S(E);P_PINP(b)
- Threat
- B(H),XP(b)
- Vars
- Q(h);N_GUARD,N_SPINP(b),XB(H)::QAR(G)
- Q(h);N_GUARD::QAR(G)
- R(e);N_SPINP(b),OGATE::R(F)
- B(f);N_SPINP(b),OGATE::R(F)
- P(d);N_SPINP(b),OGATE::QAR1(G)
- Refutation
- R(g);N_SPINP(b)
- Try
- R(F);XB(f)
- Threat
- R(F)
- Vars
- Q(h);N_GUARD::QAR(G)
- R(g);OGATE::QAR(G)
- R(g);OGATE::QAR(G),XR(g)
- Refutation
- R(e);
- Try
- Q(G);XP(d)
- Threat
- DUALS(2)
- Vars
- Q(h);::QAR1(G)
- Q(h);::QAR(G)
- R(e);::QAR1(G)
- R(g);::QAR(G)
- Refutation
- Q(h);CHECK
- Try
- Actual
- S(E);P_PINP(b)
- Threat
- B(H),XP(b)
- Vars
- Q(h);N_GUARD,N_SPINP(b),XB(H)::QAR(G)
- Q(h);N_GUARD::QAR(G)
- R(e);N_SPINP(b),OGATE::R(F)
- R(g);N_SPINP(b),OGATE::QAR(G)
- B(f);N_SPINP(b),OGATE::R(F)
- P(d);N_SPINP(b),OGATE::QAR1(G)
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).