MESON Chess Problem Database
Problem Display
PID: 170169 (8/1p6/1Nb2N2/2Bp4/2pr4/2Rnkp1R/K2n3Q/3B4 w - - 0 1)
Jaeger, Peter R
Tages-Anzeiger, 1984
#2
8 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Ba4
- 2.Sbxd5#
- 1...Bb5
- 2.Sbxd5#
- 1...Bd7
- 2.Sbxd5#
- 1...Be8
- 2.Sbxd5#
- 1...Sb1
- 2.Rxf3#
- 1...Sf1
- 2.Rxf3#
- 1...Sb3
- 2.Rxf3#
- 1...Se4
- 2.Sg4#
- 2.Rxf3#
- 1...Ba4
- Tries
- 1.Ka1?
- 1...Ba4
- 2.Sbxd5#
- 1...Bb5
- 2.Sbxd5#
- 1...Bd7
- 2.Sbxd5#
- 1...Be8
- 2.Sbxd5#
- 1...Sb1
- 2.Rxf3#
- 1...Sf1
- 2.Rxf3#
- 1...Se4
- 2.Sg4#
- 2.Rxf3#
- 1...Sb3+!
- 1...Ba4
- 1.Ka3?
- 1...Ba4
- 2.Sbxd5#
- 1...Bb5
- 2.Sbxd5#
- 1...Bd7
- 2.Sbxd5#
- 1...Be8
- 2.Sbxd5#
- 1...Sf1
- 2.Rxf3#
- 1...Sb3
- 2.Rxf3#
- 1...Se4
- 2.Sg4#
- 2.Rxf3#
- 1...Sb1+!
- 1...Ba4
- 1.Sxc4+?
- 1...Sxc4
- 2.Rxf3#
- 1...dxc4!
- 1...Sxc4
- 1.Bxf3?
- threat
- 2.Sg4#
- 1...Bd7
- 2.Sbxd5#
- 2.Sfxd5#
- 1...Sxf3!
- threat
- 1.Bd6?
- threat
- 2.Qg1#
- 2.Qe2#
- 1...Re4
- 2.Qg1#
- 1...Rf4
- 2.Qg1#
- 1...Rh4
- 2.Qg1#
- 1...Sb1
- 2.Rxf3#
- 2.Qe2#
- 1...Sf1
- 2.Rxf3#
- 2.Qe2#
- 1...Sb3
- 2.Rxf3#
- 2.Qe2#
- 1...Se4
- 2.Sg4#
- 2.Bf4#
- 2.Rxf3#
- 2.Qe2#
- 1...Rg4!
- threat
- 1.Ra3?
- 1...Bb5
- 2.Sbxd5#
- 1...Ba4
- 2.Sbxd5#
- 1...Bd7
- 2.Sbxd5#
- 1...Be8
- 2.Sbxd5#
- 1...Sb1
- 2.Rxf3#
- 1...Sf1
- 2.Rxf3#
- 1...Sb3
- 2.Rxf3#
- 1...Se4
- 2.Sg4#
- 2.Rxf3#
- 1...c3!
- 1...Bb5
- 1.Rg3?
- 1...Bb5
- 2.Sbxd5#
- 1...Ba4
- 2.Sbxd5#
- 1...Bd7
- 2.Sbxd5#
- 1...Be8
- 2.Sbxd5#
- 1...Sb1
- 2.Rxf3#
- 1...Sf1
- 2.Rxf3#
- 1...Sb3
- 2.Rxf3#
- 1...Se4
- 2.Rxf3#
- 1...Kf4!
- 1...Bb5
- 1.Rh4?
- threat
- 2.Bxd4#
- 1...Se4
- 2.Sg4#
- 1...Sb3!
- threat
- 1.Rh5?
- 1...Bb5
- 2.Sbxd5#
- 1...Ba4
- 2.Sbxd5#
- 1...Bd7
- 2.Sbxd5#
- 1...Be8
- 2.Sbxd5#
- 1...Sb1
- 2.Re5#
- 1...Sf1
- 2.Re5#
- 1...Sb3
- 2.Re5#
- 1...Se4
- 2.Sg4#
- 1...f2!
- 1...Bb5
- 1.Qg2?
- 1...Bb5
- 2.Sbxd5#
- 1...Ba4
- 2.Sbxd5#
- 1...Bd7
- 2.Sbxd5#
- 1...Be8
- 2.Sbxd5#
- 1...Sb1
- 2.Rxf3#
- 1...Sf1
- 2.Rxf3#
- 1...Sb3
- 2.Rxf3#
- 1...Se4
- 2.Rxf3#
- 1...Kf4!
- 1...Bb5
- 1.Ka1?
- Keys
- 1.Rh7!
- 1...Bb5
- 2.Sbxd5#
- 1...Ba4
- 2.Sbxd5#
- 1...Bd7
- 2.Sbxd5#
- 1...Be8
- 2.Sbxd5#
- 1...Sb1
- 2.Re7#
- 1...Sf1
- 2.Re7#
- 1...Sb3
- 2.Re7#
- 1...Se4
- 2.Sg4#
- 1...f2
- 2.Qh6#
- 1...Bb5
- 1.Rh7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(h);N_GUARD::S(G),XP(g)
- S(a);N_GUARD::R1(E),XP(d)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- B(h);N_GUARD::S(G),XP(g)
- S(a);N_GUARD::R1(E),XP(d)
- Refutation
- S(a);CHECK
- Try
- K(B);P-FLIGHT
- Vars
- B(h);N_GUARD::S(G),XP(g)
- S(a);N_GUARD::R1(E),XP(d)
- Refutation
- S(a);CHECK
- Try
- S(G);CHECK,XP(e)
- Vars
- S(a);XS(G)::R1(E),XP(d)
- Refutation
- P(g);XS(G)
- Try
- B(A);XP(d)
- Threat
- S(H)
- Refutation
- S(a);XB(A)
- Try
- B(F);N_PINR(f)
- Threat
- DUALS(2)
- Vars
- R(f);::QAB(C)
- Refutation
- R(f);
- Try
- R(D);
- Vars
- B(h);N_GUARD::S(G),XP(g)
- S(a);N_GUARD::R1(E),XP(d)
- S(a);N_GUARD,N_SPINS(b)::R1(E),XP(d)
- Refutation
- P(e);N_SPINS(b)
- Try
- R(E);
- Vars
- B(h);N_GUARD::S(G),XP(g)
- S(a);N_GUARD::R1(E),XP(d)
- Refutation
- K(c);N_SPINP(d),N_SPINR(f),N_SPINS(b),S_FLIGHT
- Try
- R(E);N_PINP(d)
- Threat
- B(F),XR(f)
- Vars
- S(a);SBLOCK::S(H)
- Refutation
- S(a);
- Try
- R(E);N_PINP(d)
- Vars
- B(h);N_GUARD::S(G),XP(g)
- S(a);N_GUARD::R(E)
- S(a);SBLOCK::S(H)
- Refutation
- P(d);
- Try
- Q(C);
- Vars
- B(h);N_GUARD::S(G),XP(g)
- S(a);N_GUARD::R1(E),XP(d)
- Refutation
- K(c);N_SPINP(d),N_SPINR(f),N_SPINS(b),S_FLIGHT
- Try
- Actual
- R(E);N_PINP(d)
- Vars
- B(h);N_GUARD::S(G),XP(g)
- S(a);N_GUARD::R(E)
- S(a);SBLOCK::S(H)
- P(d);SBLOCK::QAB(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).