MESON Chess Problem Database
Problem Display
PID: 206473 (8/K2nN1np/8/3R4/5kp1/2N2p2/8/4Q3 w - - 0 1)
Nanning, Willem
De Maasbode, 1925
#2
5 + 6
| 5454 | Near Snap | 2020 |
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sc5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qe5#
- 1...Sf6
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sf5
- 2.Rxf5#
- 1...Sh5
- 2.Rf5#
- 1...Se6
- 2.Rf5#
- 1...Se8
- 2.Rf5#
- 1...f2
- 2.Qxf2#
- 1...g3
- 2.Qe4#
- 1...h5
- 2.Sg6#
- 1...h6
- 2.Sg6#
- 1...Sc5
- Tries
- 1.Kb7?
- 1...Se5
- 2.Qxe5#
- 1...Sf5
- 2.Rxf5#
- 1...f2
- 2.Qxf2#
- 1...g3
- 2.Qe4#
- 1...Sb6
- 2.Qe5#
- 1...Sf6
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh5
- 2.Rf5#
- 1...Se6
- 2.Rf5#
- 1...Se8
- 2.Rf5#
- 1...h5
- 2.Sg6#
- 1...h6
- 2.Sg6#
- 1...Sc5+!
- 1...Se5
- 1.Ka8?
- 1...Se5
- 2.Qxe5#
- 1...Sf5
- 2.Rxf5#
- 1...f2
- 2.Qxf2#
- 1...g3
- 2.Qe4#
- 1...Sc5
- 2.Qe5#
- 1...Sf6
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh5
- 2.Rf5#
- 1...Se6
- 2.Rf5#
- 1...Se8
- 2.Rf5#
- 1...h5
- 2.Sg6#
- 1...h6
- 2.Sg6#
- 1...Sb6+!
- 1...Se5
- 1.Ra5?
- 1...Se5
- 2.Qxe5#
- 1...Sf5
- 2.Rxf5#
- 1...f2
- 2.Qxf2#
- 1...g3
- 2.Qe4#
- 1...Sh5
- 2.Rf5#
- 1...Sb6
- 2.Qe5#
- 1...Sf6
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Se6
- 2.Rf5#
- 1...Se8
- 2.Rf5#
- 1...h5
- 2.Sg6#
- 1...h6
- 2.Sg6#
- 1...Sc5!
- 1...Se5
- 1.Rb5?
- 1...Se5
- 2.Qxe5#
- 1...Sf5
- 2.Rxf5#
- 1...f2
- 2.Qxf2#
- 1...g3
- 2.Qe4#
- 1...Sh5
- 2.Rf5#
- 1...Sb6
- 2.Qe5#
- 1...Sf6
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Se6
- 2.Rf5#
- 1...Se8
- 2.Rf5#
- 1...h5
- 2.Sg6#
- 1...h6
- 2.Sg6#
- 1...Sc5!
- 1...Se5
- 1.Rc5?
- 1...Se5
- 2.Qxe5#
- 1...Sf5
- 2.Rxf5#
- 1...f2
- 2.Qxf2#
- 1...g3
- 2.Qe4#
- 1...Sh5
- 2.Rf5#
- 1...Sb6
- 2.Qe5#
- 1...Sf6
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Se6
- 2.Rf5#
- 1...Se8
- 2.Rf5#
- 1...h5
- 2.Sg6#
- 1...h6
- 2.Sg6#
- 1...Sxc5!
- 1...Se5
- 1.Rh5?
- threat
- 2.Scd5#
- 2.Sed5#
- 1...f2
- 2.Qxf2#
- 1...g3
- 2.Qe4#
- 1...Sb6
- 2.Qe5#
- 1...Sf6
- 2.Qe5#
- 1...Sxh5!
- threat
- 1.Kb7?
- Keys
- 1.Sd1!
- 1...Se5
- 2.Qxe5#
- 1...Sf5
- 2.Rxf5#
- 1...f2
- 2.Qe3#
- 1...g3
- 2.Qb4#
- 1...Sc5
- 2.Qe5#
- 1...Sb6
- 2.Qe5#
- 1...Sf6
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh5
- 2.Rf5#
- 1...Se6
- 2.Rf5#
- 1...Se8
- 2.Rf5#
- 1...h5
- 2.Sg6#
- 1...h6
- 2.Sg6#
- 1...Se5
- 1.Sd1!
Anticipated by 2842(1889)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(d);N_GUARD::QAB1(A)
- S(d);N_GUARD::QAB1(A),XS(d)
- S(e);N_GUARD::R1(C),XS(e)
- S(e);N_GUARD::R1(C)
- P(a);OGATEB::QAR2(A),XP(a)
- P(c);SBLOCK::QAR1(A)
- P(f);N_GUARD::S(E)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- S(d);N_GUARD::QAB1(A),XS(d)
- S(e);N_GUARD::R1(C),XS(e)
- P(a);OGATEB::QAR2(A),XP(a)
- P(c);SBLOCK::QAR1(A)
- S(d);N_GUARD::QAB1(A)
- S(e);N_GUARD::R1(C)
- P(f);N_GUARD::S(E)
- Refutation
- S(d);CHECK
- Try
- K(D);P-FLIGHT
- Vars
- S(d);N_GUARD::QAB1(A),XS(d)
- S(e);N_GUARD::R1(C),XS(e)
- P(a);OGATEB::QAR2(A),XP(a)
- P(c);SBLOCK::QAR1(A)
- S(d);N_GUARD::QAB1(A)
- S(e);N_GUARD::R1(C)
- P(f);N_GUARD::S(E)
- Refutation
- S(d);CHECK
- Try
- R(C);
- Vars
- S(d);N_GUARD::QAB1(A),XS(d)
- S(e);N_GUARD::R1(C),XS(e)
- P(a);OGATEB::QAR2(A),XP(a)
- P(c);SBLOCK::QAR1(A)
- S(e);N_GUARD::R1(C)
- S(d);N_GUARD::QAB1(A)
- P(f);N_GUARD::S(E)
- Refutation
- S(d);
- Try
- R(C);
- Vars
- S(d);N_GUARD::QAB1(A),XS(d)
- S(e);N_GUARD::R1(C),XS(e)
- P(a);OGATEB::QAR2(A),XP(a)
- P(c);SBLOCK::QAR1(A)
- S(e);N_GUARD::R1(C)
- S(d);N_GUARD::QAB1(A)
- P(f);N_GUARD::S(E)
- Refutation
- S(d);
- Try
- R(C);
- Vars
- S(d);N_GUARD::QAB1(A),XS(d)
- S(e);N_GUARD::R1(C),XS(e)
- P(a);OGATEB::QAR2(A),XP(a)
- P(c);SBLOCK::QAR1(A)
- S(e);N_GUARD::R1(C)
- S(d);N_GUARD::QAB1(A)
- P(f);N_GUARD::S(E)
- Refutation
- S(d);XR(C)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- P(a);OGATEB::QAR2(A),XP(a)
- P(c);SBLOCK::QAR1(A)
- S(d);N_GUARD::QAB1(A)
- Refutation
- S(e);XR(C)
- Try
- Actual
- S(B);
- Vars
- S(d);N_GUARD::QAB1(A),XS(d)
- S(e);N_GUARD::R1(C),XS(e)
- P(a);::QAB1(A)
- P(c);SBLOCK::QAR(A)
- S(d);N_GUARD::QAB1(A)
- S(e);N_GUARD::R1(C)
- P(f);N_GUARD::S(E)
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).