MESON Chess Problem Database
Problem Display
PID: 178611 (6K1/4B3/4ppp1/4k3/R3Bp2/3PN3/bb2R2n/6rQ w - - 0 1)
Issler, Werner
4th HM., Castellari Festival (Boletim da UBP), 1963
#2
8 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.d4#
- 1...Ba3
- 2.d4#
- 1...Bc1
- Tries
- 1.Sg4+?
- 1...Rxg4
- 2.Bxg6#
- 1...Sxg4!
- 1...Rxg4
- 1.Bf5?
- threat
- 2.Re4#
- 2.Qe4#
- 1...exf5+
- 2.Sd5#
- 1...gxf5+
- 2.Sg4#
- 1...Rxh1
- 2.Re4#
- 1...fxe3
- 2.Qe4#
- 1...Bc4
- 2.Qe4#
- 1...Rg2
- 2.Re4#
- 1...Bd4
- 2.Qe4#
- 1...Sf3
- 2.Re4#
- 1...f3
- 2.Re4#
- 1...Bd5!
- threat
- 1.Bc6?
- threat
- 2.Re4#
- 2.Qe4#
- 1...Rxh1
- 2.Re4#
- 1...fxe3
- 2.Qe4#
- 1...Bc4
- 2.Qe4#
- 1...Rg2
- 2.Re4#
- 1...Bd4
- 2.Qe4#
- 1...Sf3
- 2.Re4#
- 1...f3
- 2.Re4#
- 1...f5
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sg4#
- 2.Sd5#
- 1...Bd5!
- threat
- 1.Bxg6?
- threat
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg4#
- 2.Sd5#
- 2.Sf5#
- 2.Re4#
- 2.Qe4#
- 1...Rxh1
- 2.Re4#
- 1...fxe3
- 2.Rxe3#
- 2.Qe4#
- 1...Bc4
- 2.Sc2#
- 2.Sf5#
- 2.Qe4#
- 1...Bd5
- 2.Sg4#
- 2.Sxd5#
- 1...Rd1
- 2.Sxd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg4#
- 2.Sd5#
- 2.Sf5#
- 2.Re4#
- 2.Qe4#
- 1...Re1
- 2.Sg4#
- 2.Re4#
- 2.Qe4#
- 1...Rf1
- 2.Sd1#
- 2.Sxf1#
- 2.Sc2#
- 2.Sg4#
- 2.Sd5#
- 2.Sf5#
- 2.Re4#
- 2.Qe4#
- 1...Rg2
- 2.Re4#
- 1...Rg3
- 2.Sg4#
- 2.Re4#
- 2.Qe4#
- 1...Rg4
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sxg4#
- 2.Sd5#
- 2.Sf5#
- 2.Re4#
- 2.Qe4#
- 1...Bc1
- 2.Sg4#
- 2.Re4#
- 2.Qe4#
- 2.d4#
- 1...Bd4
- 2.Sc4#
- 2.Sg4#
- 2.Qe4#
- 1...Sf1
- 2.Sxf1#
- 2.Sg4#
- 2.Re4#
- 2.Qe4#
- 1...Sf3
- 2.Re4#
- 1...Sg4
- 2.Sxg4#
- 2.Re4#
- 2.Qe4#
- 1...f3
- 2.Re4#
- 1...f5
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg4#
- 2.Sd5#
- 2.Sxf5#
- 1...Rxg6+!
- threat
- 1.Bb7?
- threat
- 2.Re4#
- 2.Qe4#
- 1...Rxh1
- 2.Re4#
- 1...fxe3
- 2.Qe4#
- 1...Bc4
- 2.Qe4#
- 1...Rg2
- 2.Re4#
- 1...Bd4
- 2.Qe4#
- 1...Sf3
- 2.Re4#
- 1...f3
- 2.Re4#
- 1...f5
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sg4#
- 2.Sd5#
- 1...Bd5!
- threat
- 1.Ba8?
- threat
- 2.Re4#
- 2.Qe4#
- 1...Rxh1
- 2.Re4#
- 1...fxe3
- 2.Qe4#
- 1...Bc4
- 2.Qe4#
- 1...Rg2
- 2.Re4#
- 1...Bd4
- 2.Qe4#
- 1...Sf3
- 2.Re4#
- 1...f3
- 2.Re4#
- 1...f5
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sg4#
- 2.Sd5#
- 1...Bd5!
- threat
- 1.Sg4+?
- Keys
- 1.Sf5!
- threat
- 2.Bd6#
- 1...exf5+
- 2.Bd5#
- 1...gxf5+
- 2.Bg2#
- 1...Ba3
- 2.d4#
- threat
- 1.Sf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- B(c);N_GUARD::P(C)
- Tries
- Try
- S(D);CHECK
- Vars
- R(a);XS(D)::R(B)+B(F),XP(i)
- Refutation
- S(d);XS(D)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- P(g);CHECK,SBLOCK,XB(F)::R(B)+S(D)
- P(i);CHECK,SBLOCK,XB(F)::R(B)+S(D),DCHECK
- R(a);XQ(A)::R1(E)
- P(e);P_SPINP(e),XS(D)::QAR1(A)
- B(b);::QAR1(A)
- R(a);::R1(E)
- B(c);::QAR1(A)
- S(d);::R1(E)
- P(e);::R1(E)
- Refutation
- B(b);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- R(a);XQ(A)::R1(E)
- P(e);P_SPINP(e),XS(D)::QAR1(A)
- B(b);::QAR1(A)
- R(a);::R1(E)
- B(c);::QAR1(A)
- S(d);::R1(E)
- P(e);::R1(E)
- Refutation
- B(b);
- Try
- B(F);P_SPINB(F),XP(i)
- Threat
- DUALS(8)
- Vars
- R(a);N_PINB(F),XQ(A)::R1(E)
- R(a);::R1(E)
- S(d);::R1(E)
- P(e);::R1(E)
- Refutation
- R(a);CHECK,XB(F)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- R(a);XQ(A)::R1(E)
- P(e);P_SPINP(e),XS(D)::QAR1(A)
- B(b);::QAR1(A)
- R(a);::R1(E)
- B(c);::QAR1(A)
- S(d);::R1(E)
- P(e);::R1(E)
- Refutation
- B(b);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- R(a);XQ(A)::R1(E)
- P(e);P_SPINP(e),XS(D)::QAR1(A)
- B(b);::QAR1(A)
- R(a);::R1(E)
- B(c);::QAR1(A)
- S(d);::R1(E)
- P(e);::R1(E)
- Refutation
- B(b);
- Try
- Actual
- S(D);
- Threat
- B(G)
- Vars
- P(g);CHECK,SBLOCK,XS(D)::R(B)+B(F)
- P(i);CHECK,SBLOCK,XS(D)::R(B)+B(F)
- B(c);N_GUARD::P(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).