MESON Chess Problem Database
Problem Display
PID: 101570 (3n4/3Qp3/bp2P3/2kPNN2/1pp1Kp2/2R5/8/2B1n3 w - - 0 1)
Seilberger, Johann Joseph Petrus Adrianus
Good Companions, 1920
#2
8 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bb5
- 2.Qxe7#
- 1...Bb7
- 2.Rxc4#
- 1...Bc8
- 2.Rxc4#
- 1...Sc2
- 2.Sd3#
- 1...Sg2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sf3
- 2.Sd3#
- 1...Sc6
- 2.Qxc6#
- 1...Sxe6
- 2.Qc6#
- 1...Sb7
- 2.Qc6#
- 1...Sf7
- 2.Qc6#
- 1...bxc3
- 2.Ba3#
- 1...b3
- 2.Ba3#
- 1...f3
- 2.Be3#
- 1...b5
- 2.Qa7#
- 1...Bb5
- Tries
- 1.Sg3?
- 1...Sxe6
- 2.Qc6#
- 1...bxc3
- 2.Ba3#
- 1...fxg3
- 2.Be3#
- 1...Sc6
- 2.Qxc6#
- 1...b3
- 2.Ba3#
- 1...Bb7
- 2.Rxc4#
- 1...Bb5
- 2.Qxe7#
- 1...Bc8
- 2.Rxc4#
- 1...Sc2
- 2.Sd3#
- 1...Sg2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sf3
- 2.Sd3#
- 1...Sb7
- 2.Qc6#
- 1...Sf7
- 2.Qc6#
- 1...f3
- 2.Be3#
- 1...b5!
- 1...Sxe6
- 1.Sd4?
- threat
- 2.Sb3#
- 2.Qxe7#
- 1...bxc3
- 2.Ba3#
- 2.Qxe7#
- 1...b3
- 2.Ba3#
- 2.Qxe7#
- 1...Sc6
- 2.Qxc6#
- 1...Sb7
- 2.Sb3#
- 2.Qc6#
- 2.Qc7#
- 1...Sf7
- 2.Sb3#
- 2.Qc6#
- 2.Qc7#
- 1...b5!
- threat
- 1.Sh4?
- 1...Sxe6
- 2.Qc6#
- 1...bxc3
- 2.Ba3#
- 1...Sc6
- 2.Qxc6#
- 1...b3
- 2.Ba3#
- 1...Bb7
- 2.Rxc4#
- 1...Bb5
- 2.Qxe7#
- 1...Bc8
- 2.Rxc4#
- 1...Sc2
- 2.Sd3#
- 1...Sg2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sf3
- 2.Sd3#
- 1...Sb7
- 2.Qc6#
- 1...Sf7
- 2.Qc6#
- 1...f3
- 2.Be3#
- 1...b5!
- 1...Sxe6
- 1.Sh6?
- 1...Sxe6
- 2.Qc6#
- 1...bxc3
- 2.Ba3#
- 1...Sc6
- 2.Qxc6#
- 1...b3
- 2.Ba3#
- 1...Bb7
- 2.Rxc4#
- 1...Bb5
- 2.Qxe7#
- 1...Bc8
- 2.Rxc4#
- 1...Sc2
- 2.Sd3#
- 1...Sg2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sf3
- 2.Sd3#
- 1...Sb7
- 2.Qc6#
- 1...Sf7
- 2.Qc6#
- 1...f3
- 2.Be3#
- 1...b5!
- 1...Sxe6
- 1.Sg7?
- 1...Sxe6
- 2.Sxe6#
- 2.Qc6#
- 1...bxc3
- 2.Ba3#
- 1...Sc6
- 2.Qxc6#
- 1...b3
- 2.Ba3#
- 1...Bb7
- 2.Rxc4#
- 1...Bb5
- 2.Qxe7#
- 1...Bc8
- 2.Rxc4#
- 1...Sc2
- 2.Sd3#
- 1...Sg2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sf3
- 2.Sd3#
- 1...Sb7
- 2.Qc6#
- 1...Sf7
- 2.Qc6#
- 1...f3
- 2.Be3#
- 1...b5!
- 1...Sxe6
- 1.Bb2?
- 1...Sxe6
- 2.Qc6#
- 1...bxc3
- 2.Ba3#
- 1...Sc6
- 2.Qxc6#
- 1...b3
- 2.Ba3#
- 1...b5
- 2.Qa7#
- 1...Bb7
- 2.Rxc4#
- 1...Bb5
- 2.Qxe7#
- 1...Bc8
- 2.Rxc4#
- 1...Sc2
- 2.Sd3#
- 1...Sg2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sf3
- 2.Sd3#
- 1...Sb7
- 2.Qc6#
- 1...Sf7
- 2.Qc6#
- 1...f3!
- 1...Sxe6
- 1.Qa4?
- threat
- 2.Sd7#
- 1...Bc8
- 2.Rxc4#
- 1...Bb5!
- threat
- 1.Qc7+?
- 1...Sc6
- 2.Qxc6#
- 1...Kb5!
- 1...Sc6
- 1.Sg3?
- Keys
- 1.Qe8!
- 1...Sxe6
- 2.Qc6#
- 1...bxc3
- 2.Ba3#
- 1...Sc6
- 2.Qxc6#
- 1...b3
- 2.Ba3#
- 1...b5
- 2.Sd7#
- 1...Bb7
- 2.Rxc4#
- 1...Bb5
- 2.Qxe7#
- 1...Bc8
- 2.Rxc4#
- 1...Sc2
- 2.Sd3#
- 1...Sg2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sf3
- 2.Sd3#
- 1...Sb7
- 2.Qc6#
- 1...Sf7
- 2.Qc6#
- 1...f3
- 2.Be3#
- 1...Sxe6
- 1.Qe8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(f);SBLOCK::QAB(H),XP(h)
- B(f);N_GUARD,P_PINP(D)::R1(B),XP(c)
- B(f);N_GUARD::R1(B),XP(c)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(i);N_GUARD::QAR1(H),XS(i)
- S(i);N_GUARD,XP(G)::QAR1(H)
- S(i);N_GUARD::QAR1(H)
- P(b);N_SPINP(c),OGATEB,XR(B)::B(A)
- P(b);OGATEB::B(A)
- P(d);N_GUARD::B(A)
- P(g);OGATEB,SBLOCK::QAB(H)
- Tries
- Try
- S(F);
- Vars
- S(i);N_GUARD,XP(G)::QAR1(H)
- P(b);N_SPINP(c),OGATEB,XR(B)::B(A)
- P(d);N_GUARD,XS(F)::B(A)
- S(i);N_GUARD::QAR1(H),XS(i)
- P(b);OGATEB::B(A)
- B(f);N_GUARD,P_PINP(D)::R1(B),XP(c)
- B(f);SBLOCK::QAB(H),XP(h)
- B(f);N_GUARD::R1(B),XP(c)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(i);N_GUARD::QAR1(H)
- P(d);N_GUARD::B(A)
- Refutation
- P(g);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- S(i);N_GUARD::QAR1(H),XS(i)
- Refutation
- P(g);
- Try
- S(F);
- Vars
- S(i);N_GUARD,XP(G)::QAR1(H)
- P(b);N_SPINP(c),OGATEB,XR(B)::B(A)
- S(i);N_GUARD::QAR1(H),XS(i)
- P(b);OGATEB::B(A)
- B(f);N_GUARD,P_PINP(D)::R1(B),XP(c)
- B(f);SBLOCK::QAB(H),XP(h)
- B(f);N_GUARD::R1(B),XP(c)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(i);N_GUARD::QAR1(H)
- P(d);N_GUARD::B(A)
- Refutation
- P(g);
- Try
- S(F);
- Vars
- S(i);N_GUARD,XP(G)::QAR1(H)
- P(b);N_SPINP(c),OGATEB,XR(B)::B(A)
- S(i);N_GUARD::QAR1(H),XS(i)
- P(b);OGATEB::B(A)
- B(f);N_GUARD,P_PINP(D)::R1(B),XP(c)
- B(f);SBLOCK::QAB(H),XP(h)
- B(f);N_GUARD::R1(B),XP(c)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(i);N_GUARD::QAR1(H)
- P(d);N_GUARD::B(A)
- Refutation
- P(g);
- Try
- S(F);
- Vars
- P(b);N_SPINP(c),OGATEB,XR(B)::B(A)
- S(i);N_GUARD::QAR1(H),XS(i)
- P(b);OGATEB::B(A)
- B(f);N_GUARD,P_PINP(D)::R1(B),XP(c)
- B(f);SBLOCK::QAB(H),XP(h)
- B(f);N_GUARD::R1(B),XP(c)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(i);N_GUARD::QAR1(H)
- P(d);N_GUARD::B(A)
- Refutation
- P(g);
- Try
- B(A);
- Vars
- S(i);N_GUARD,XP(G)::QAR1(H)
- P(b);N_SPINP(c),OGATEB,XR(B)::B(A)
- S(i);N_GUARD::QAR1(H),XS(i)
- P(b);OGATEB::B(A)
- P(g);OGATEB,SBLOCK::QAB(H)
- B(f);N_GUARD,P_PINP(D)::R1(B),XP(c)
- B(f);SBLOCK::QAB(H),XP(h)
- B(f);N_GUARD::R1(B),XP(c)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(i);N_GUARD::QAR1(H)
- Refutation
- P(d);
- Try
- Q(H);
- Threat
- S(E)
- Vars
- B(f);N_GUARD::R1(B),XP(c)
- Refutation
- B(f);
- Try
- Q(H);CHECK
- Vars
- S(i);N_GUARD,P_SPINS(i)::QAR1(H),XS(i)
- Refutation
- K(e);N_SPINP(c),P-FLIGHT
- Try
- Actual
- Q(H);
- Vars
- S(i);N_GUARD,XP(G)::QAR1(H)
- P(b);N_SPINP(c),OGATEB,XR(B)::B(A)
- S(i);N_GUARD::QAR1(H),XS(i)
- P(b);OGATEB::B(A)
- P(g);SBLOCK::S(E)
- B(f);N_GUARD,P_PINP(D)::R1(B),XP(c)
- B(f);SBLOCK::QAB(H),XP(h)
- B(f);N_GUARD::R1(B),XP(c)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(i);N_GUARD::QAR1(H)
- P(d);N_GUARD::B(A)
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).