MESON Chess Problem Database
Problem Display
PID: 202460 (7b/3p1Qn1/2pP2K1/6p1/2P1k3/1R2p3/1Bn3N1/8 w - - 0 1)
Feenstra Kuiper, Pieter
De Nederlander, 1923
#2
7 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sa1
- 2.Rxe3#
- 1...Se1
- 2.Rxe3#
- 1...Sa3
- 2.Rxe3#
- 1...Sb4
- 2.Rxe3#
- 1...Sd4
- 2.Rxe3#
- 1...Sf5
- 2.Qxf5#
- 1...Sh5
- 2.Qf5#
- 1...Se6
- 2.Qf5#
- 1...Se8
- 2.Qf5#
- 1...e2
- 2.Qf3#
- 1...g4
- 2.Qf4#
- 1...c5
- 2.Qd5#
- 1...Sa1
- Tries
- 1.Kxg5?
- threat
- 2.Qf4#
- 1...Sf5
- 2.Qxf5#
- 1...Sh5
- 2.Qf5#
- 1...Se6+!
- threat
- 1.Ba1?
- 1...Sd4
- 2.Rxe3#
- 1...Sf5
- 2.Qxf5#
- 1...Sh5
- 2.Qf5#
- 1...Se1
- 2.Rxe3#
- 1...Sa3
- 2.Rxe3#
- 1...Sb4
- 2.Rxe3#
- 1...Se6
- 2.Qf5#
- 1...Se8
- 2.Qf5#
- 1...e2
- 2.Qf3#
- 1...g4
- 2.Qf4#
- 1...c5
- 2.Qd5#
- 1...Sxa1!
- 1...Sd4
- 1.Bxg7?
- threat
- 2.Qf5#
- 1...Sd4
- 2.Rxe3#
- 1...Bxg7!
- threat
- 1.Ra3?
- 1...Sd4
- 2.Rxe3#
- 1...Sf5
- 2.Qxf5#
- 1...Sh5
- 2.Qf5#
- 1...Sa1
- 2.Rxe3#
- 1...Se1
- 2.Rxe3#
- 1...Sb4
- 2.Rxe3#
- 1...Se6
- 2.Qf5#
- 1...Se8
- 2.Qf5#
- 1...e2
- 2.Qf3#
- 1...g4
- 2.Qf4#
- 1...c5
- 2.Qd5#
- 1...Sxa3!
- 1...Sd4
- 1.Qf1?
- 1...Sd4
- 2.Rxe3#
- 1...Sh5
- 2.Qf5#
- 1...Sa1
- 2.Rxe3#
- 1...Se1
- 2.Rxe3#
- 1...Sa3
- 2.Rxe3#
- 1...Sb4
- 2.Rxe3#
- 1...Sf5
- 2.Qxf5#
- 1...Se6
- 2.Qf5#
- 1...Se8
- 2.Qf5#
- 1...e2
- 2.Qf3#
- 1...g4
- 2.Qf4#
- 1...c5!
- 1...Sd4
- 1.Qf6?
- 1...Sf5
- 2.Qxf5#
- 1...Sh5
- 2.Qf5#
- 1...Sa1
- 2.Rxe3#
- 1...Se1
- 2.Rxe3#
- 1...Sa3
- 2.Rxe3#
- 1...Sb4
- 2.Rxe3#
- 1...Sd4
- 2.Rxe3#
- 1...Se6
- 2.Qf5#
- 1...Se8
- 2.Qf5#
- 1...e2
- 2.Qe5#
- 2.Qf3#
- 1...g4
- 2.Qf4#
- 1...c5!
- 1...Sf5
- 1.Qxd7?
- threat
- 2.Qg4#
- 2.Qxc6#
- 1...Sd4
- 2.Rxe3#
- 1...Sh5
- 2.Qf5#
- 2.Qxc6#
- 1...Sb4
- 2.Rxe3#
- 2.Qg4#
- 1...Sf5
- 2.Qxf5#
- 2.Qxc6#
- 1...Se6
- 2.Qxc6#
- 1...g4
- 2.Qxg4#
- 2.Qxc6#
- 1...c5
- 2.Qg4#
- 2.Qc6#
- 2.Qb7#
- 1...Kf3!
- threat
- 1.c5?
- 1...Sd4
- 2.Rxe3#
- 1...Sf5
- 2.Qxf5#
- 1...Se6
- 2.Qf5#
- 1...Sh5
- 2.Qf5#
- 1...Sa1
- 2.Rxe3#
- 1...Se1
- 2.Rxe3#
- 1...Sa3
- 2.Rxe3#
- 1...Sb4
- 2.Rxe3#
- 1...Se8
- 2.Qf5#
- 1...e2
- 2.Qf3#
- 1...g4!
- 1...Sd4
- 1.Kxg5?
- Keys
- 1.Qf8!
- 1...Sd4
- 2.Rxe3#
- 1...Sf5
- 2.Qxf5#
- 1...Sh5
- 2.Qf5#
- 1...Sa1
- 2.Rxe3#
- 1...Se1
- 2.Rxe3#
- 1...Sa3
- 2.Rxe3#
- 1...Sb4
- 2.Rxe3#
- 1...Se6
- 2.Qf5#
- 1...Se8
- 2.Qf5#
- 1...e2
- 2.Qf3#
- 1...g4
- 2.Qf4#
- 1...c5
- 2.Qa8#
- 1...Sd4
- 1.Qf8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::R1(C),XP(b)
- S(g);N_GUARD::QAB1(G),XS(g)
- S(g);N_GUARD::QAB1(G)
- P(b);::QAB1(G)
- P(d);N_GUARD::QAR1(G)
- P(e);N_GUARD::QAB1(G)
- Tries
- Try
- K(F);P-FLIGHT,XP(d)
- Threat
- QAR1(G)
- Vars
- S(g);N_GUARD::QAB1(G),XS(g)
- S(g);N_GUARD::QAB1(G)
- Refutation
- S(g);CHECK
- Try
- B(A);
- Vars
- S(a);N_GUARD::R1(C),XP(b)
- S(g);N_GUARD::QAB1(G),XS(g)
- S(g);N_GUARD::QAB1(G)
- P(b);::QAB1(G)
- P(d);N_GUARD::QAR1(G)
- P(e);N_GUARD::QAB1(G)
- Refutation
- S(a);XB(A)
- Try
- B(A);XS(g)
- Threat
- QAB1(G)
- Vars
- S(a);N_GUARD::R1(C),XP(b)
- Refutation
- B(h);XB(A)
- Try
- R(C);
- Vars
- S(a);N_GUARD::R1(C),XP(b)
- S(g);N_GUARD::QAB1(G),XS(g)
- S(g);N_GUARD::QAB1(G)
- P(b);::QAB1(G)
- P(d);N_GUARD::QAR1(G)
- P(e);N_GUARD::QAB1(G)
- Refutation
- S(a);XR(C)
- Try
- Q(G);
- Vars
- S(a);N_GUARD::R1(C),XP(b)
- S(g);N_GUARD::QAB1(G)
- S(g);N_GUARD::QAB1(G),XS(g)
- P(b);::QAB1(G)
- P(d);N_GUARD::QAR1(G)
- Refutation
- P(e);
- Try
- Q(G);
- Vars
- S(g);N_GUARD::QAB1(G),XS(g)
- S(g);N_GUARD::QAB1(G)
- S(a);N_GUARD::R1(C),XP(b)
- P(d);N_GUARD::QAR1(G)
- Refutation
- P(e);
- Try
- Q(G);XP(f)
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD::R1(C),XP(b)
- S(g);::QAB(G),XP(e)
- Refutation
- K(c);P_SPINP(b),S_FLIGHT
- Try
- P(D);
- Vars
- S(a);N_GUARD::R1(C),XP(b)
- S(g);N_GUARD::QAB1(G),XS(g)
- S(g);N_GUARD::QAB1(G)
- P(b);::QAB1(G)
- Refutation
- P(d);
- Try
- Actual
- Q(G);
- Vars
- S(a);N_GUARD::R1(C),XP(b)
- S(g);N_GUARD::QAB1(G),XS(g)
- S(g);N_GUARD::QAB1(G)
- P(b);::QAB1(G)
- P(d);N_GUARD::QAR1(G)
- P(e);OGATEB::QAB(G)
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).