MESON Chess Problem Database
Problem Display
PID: 82037 (8/2b5/3pb3/3N3Q/2KNk3/3R2P1/1BP5/5qn1 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Parallele 50, 1948
#2
8 + 6
| 6490 | yacpdb | 2009 |
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Qg2
- 2.Re3#
- 1...Qxd3+
- 2.cxd3#
- 1...Qh3
- 2.Re3#
- 1...Qa1
- 2.Re3#
- 1...Qb1
- 2.Re3#
- 1...Qd1
- 2.Re3#
- 1...Qf5
- 2.Re3#
- 1...Qf6
- 2.Re3#
- 1...Qf7
- 2.Re3#
- 1...Qf8
- 2.Re3#
- 1...Bh3
- 2.Sc3#
- 1...Bg4
- 2.Sc3#
- 1...Bxd5+
- 2.Qxd5#
- 1...Bd7
- 2.Sc3#
- 1...Bc8
- 2.Sc3#
- 1...Se2
- 2.Re3#
- 1...Qg2
- Tries
- 1.Se2?
- threat
- 2.Sc3#
- 2.Re3#
- 2.Rd4#
- 1...Bxd5+
- 2.Qxd5#
- 1...Sxe2
- 2.Re3#
- 1...Qc1
- 2.Sc3#
- 2.Rd4#
- 1...Qd1
- 2.Sc3#
- 2.Re3#
- 1...Qe1
- 2.Re3#
- 2.Rd4#
- 1...Qf2
- 2.Sc3#
- 1...Qf3
- 2.Sc3#
- 2.Rd4#
- 1...Qf4
- 2.Sc3#
- 2.Rd4#
- 1...Qf5
- 2.Re3#
- 1...Qf6
- 2.Re3#
- 1...Bg4
- 2.Sec3#
- 2.Sdc3#
- 2.Re3#
- 1...Bf5
- 2.Sf6#
- 2.Re3#
- 1...Ba5
- 2.Re3#
- 2.Rd4#
- 1...Bb6
- 2.Sc3#
- 1...Sf3
- 2.Sc3#
- 2.Re3#
- 1...Qxe2!
- threat
- 1.Sxe6?
- threat
- 2.Sc3#
- 1...Qxd3+
- 2.cxd3#
- 1...Qe1
- 2.Sf6#
- 2.Rd4#
- 2.Qg4#
- 2.Qg6#
- 2.Qh7#
- 1...Qf5
- 2.Re3#
- 1...Qf6
- 2.Sxf6#
- 2.Re3#
- 1...Se2
- 2.Re3#
- 1...Ba5!
- threat
- 1.Qe2+?
- 1...Sxe2
- 2.Re3#
- 1...Qxe2!
- 1...Sxe2
- 1.Qg4+?
- 1...Ke5
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Sxe6#
- 2.Qxe6#
- 1...Qf4
- 2.Re3#
- 2.Qxf4#
- 1...Bxg4!
- 1...Ke5
- 1.Qg6+?
- 1...Ke5
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sc6#
- 2.Sxe6#
- 2.Qxe6#
- 1...Qf5
- 2.Re3#
- 1...Bf5!
- 1...Ke5
- 1.Qf5+?
- 1...Qxf5
- 2.Re3#
- 1...Bxf5!
- 1...Qxf5
- 1.Qh7+?
- 1...Ke5
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sc6#
- 1...Qf5
- 2.Re3#
- 1...Bf5!
- 1...Ke5
- 1.Se2?
- Keys
- 1.Sb5!
- threat
- 2.Sc3#
- 1...Qxd3+
- 2.cxd3#
- 1...Bxd5+
- 2.Qxd5#
- 1...Qe1
- 2.Rd4#
- 1...Qf5
- 2.Re3#
- 1...Qf6
- 2.Re3#
- 1...Bf5
- 2.Sf6#
- 1...Ba5
- 2.Sxd6#
- 1...Se2
- 2.Re3#
- threat
- 1.Sb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 11
- Sets
- Q(a);N_PINR(C)::R1(C)
- Q(a);CHECK,OGATE,XR(C)::P(B),XQ(a)
- B(e);N_PINS(G)::S(G)
- B(e);CHECK,OGATE,XS(G)::QAB1(H),XB(e)
- S(b);N_PINR(C)::R1(C)
- Tries
- Try
- S(F);N_SPINR(C)
- Threat
- DUALS(3)
- Vars
- B(e);CHECK,OGATE,XS(G)::QAB1(H),XB(e)
- S(b);XS(F)::R1(C)
- Q(a);::S(F)
- Q(a);::R1(C)
- B(f);::S(F)
- Refutation
- Q(a);P_PINR(C),XS(F)
- Try
- S(F);N_SPINS(G),XB(e)
- Threat
- S(G)
- Vars
- Q(a);CHECK,OGATE,XR(C)::P(B),XQ(a)
- Q(a);N_PINR(C)::R1(C)
- S(b);N_PINR(C)::R1(C)
- Refutation
- B(f);
- Try
- Q(H);CHECK,N_SPINR(C)
- Vars
- S(b);XQ(H)::R1(C)
- Refutation
- Q(a);P_PINR(C),XQ(H)
- Try
- Q(H);CHECK
- Refutation
- B(e);N_PINS(G),XQ(H)
- Try
- Q(H);CHECK
- Vars
- Q(a);N_PINR(C),P_SPINQ(a)::R1(C)
- Refutation
- B(e);N_PINS(G),P_SPINB(e)
- Try
- Q(H);CHECK
- Vars
- Q(a);N_PINR(C),XQ(H)::R1(C)
- Refutation
- B(e);N_PINS(G),XQ(H)
- Try
- Q(H);CHECK
- Vars
- Q(a);N_PINR(C),P_SPINQ(a)::R1(C)
- Refutation
- B(e);N_PINS(G),P_SPINB(e)
- Try
- Actual
- S(F);
- Threat
- S(F)
- Vars
- Q(a);CHECK,OGATE,XR(C)::P(B),XQ(a)
- B(e);CHECK,OGATE,XS(G)::QAB1(H),XB(e)
- Q(a);N_PINR(C)::R1(C)
- B(e);N_PINS(G)::S(G)
- B(f);N_GUARD::S(F),XP(d)
- S(b);N_PINR(C)::R1(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).