MESON Chess Problem Database
Problem Display
PID: 206410 (5b2/4p1p1/p3P1R1/R3P1nQ/5kP1/1p3nN1/1K1p1P2/3B4 w - - 0 1)
van Dijk, Johannes
De Maasbode, 1925
#2
10 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Qxg5#
- 1...Sg1
- 2.Qxg5#
- 1...Sh2
- 2.Qxg5#
- 1...Sd4
- 2.Qxg5#
- 1...Sh4
- 2.Qxg5#
- 1...Sxe5
- 2.Qxg5#
- 1...Sh3
- 2.Qf5#
- 1...Se4
- 2.Se2#
- 2.Qf5#
- 1...Sxe6
- 2.Qf5#
- 1...Sf7
- 2.Qf5#
- 1...Sh7
- 2.Qf5#
- 1...Se1
- Tries
- 1.Ka1?
- 1...Sxe5
- 2.Qxg5#
- 1...Sxe6
- 2.Qf5#
- 1...Se1
- 2.Qxg5#
- 1...Sg1
- 2.Qxg5#
- 1...Sh2
- 2.Qxg5#
- 1...Sd4
- 2.Qxg5#
- 1...Sh4
- 2.Qxg5#
- 1...Sh3
- 2.Qf5#
- 1...Se4
- 2.Se2#
- 2.Qf5#
- 1...Sf7
- 2.Qf5#
- 1...Sh7
- 2.Qf5#
- 1...b2+!
- 1...Sxe5
- 1.Kb1?
- 1...Sxe5
- 2.Qxg5#
- 1...Sxe6
- 2.Qf5#
- 1...Se1
- 2.Qxg5#
- 1...Sg1
- 2.Qxg5#
- 1...Sh2
- 2.Qxg5#
- 1...Sd4
- 2.Qxg5#
- 1...Sh4
- 2.Qxg5#
- 1...Sh3
- 2.Qf5#
- 1...Se4
- 2.Se2#
- 2.Qf5#
- 1...Sf7
- 2.Qf5#
- 1...Sh7
- 2.Qf5#
- 1...b2!
- 1...Sxe5
- 1.Ka3?
- 1...Sxe5
- 2.Qxg5#
- 1...Sxe6
- 2.Qf5#
- 1...Se1
- 2.Qxg5#
- 1...Sg1
- 2.Qxg5#
- 1...Sh2
- 2.Qxg5#
- 1...Sd4
- 2.Qxg5#
- 1...Sh4
- 2.Qxg5#
- 1...Sh3
- 2.Qf5#
- 1...Se4
- 2.Se2#
- 2.Qf5#
- 1...Sf7
- 2.Qf5#
- 1...Sh7
- 2.Qf5#
- 1...b2!
- 1...Sxe5
- 1.Kxb3?
- 1...Sxe5
- 2.Qxg5#
- 1...Sxe6
- 2.Qf5#
- 1...Se1
- 2.Qxg5#
- 1...Sg1
- 2.Qxg5#
- 1...Sh2
- 2.Qxg5#
- 1...Sh4
- 2.Qxg5#
- 1...Sh3
- 2.Qf5#
- 1...Se4
- 2.Se2#
- 2.Qf5#
- 1...Sf7
- 2.Qf5#
- 1...Sh7
- 2.Qf5#
- 1...Sd4+!
- 1...Sxe5
- 1.Ra4+?
- 1...Sd4
- 2.Qxg5#
- 1...Se4
- 2.Se2#
- 2.Rxe4#
- 2.Qf5#
- 1...Kxe5!
- 1...Sd4
- 1.Rc5?
- 1...Sxe5
- 2.Qxg5#
- 1...Sxe6
- 2.Qf5#
- 1...Se1
- 2.Qxg5#
- 1...Sg1
- 2.Qxg5#
- 1...Sh2
- 2.Qxg5#
- 1...Sd4
- 2.Qxg5#
- 1...Sh4
- 2.Qxg5#
- 1...Sh3
- 2.Qf5#
- 1...Se4
- 2.Se2#
- 2.Qf5#
- 1...Sf7
- 2.Qf5#
- 1...Sh7
- 2.Qf5#
- 1...a5!
- 1...Sxe5
- 1.Rd5?
- 1...Sxe5
- 2.Qxg5#
- 1...Sxe6
- 2.Qf5#
- 1...Se1
- 2.Qxg5#
- 1...Sg1
- 2.Qxg5#
- 1...Sh2
- 2.Qxg5#
- 1...Sd4
- 2.Qxg5#
- 1...Sh4
- 2.Qxg5#
- 1...Sh3
- 2.Qf5#
- 1...Se4
- 2.Se2#
- 2.Qf5#
- 1...Sf7
- 2.Qf5#
- 1...Sh7
- 2.Qf5#
- 1...a5!
- 1...Sxe5
- 1.Rxa6?
- 1...Sxe5
- 2.Qxg5#
- 1...Sxe6
- 2.Qf5#
- 1...Se1
- 2.Qxg5#
- 1...Sg1
- 2.Qxg5#
- 1...Sh2
- 2.Qxg5#
- 1...Sd4
- 2.Qxg5#
- 1...Sh4
- 2.Qxg5#
- 1...Sh3
- 2.Qf5#
- 1...Se4
- 2.Se2#
- 2.Qf5#
- 1...Sf7
- 2.Qf5#
- 1...Sh7
- 2.Qf5#
- 1...Kxe5!
- 1...Sxe5
- 1.Rxg7?
- 1...Sxe5
- 2.Qxg5#
- 1...Sxe6
- 2.Rf7#
- 2.Qf7#
- 2.Qf5#
- 1...Se1
- 2.Qxg5#
- 1...Sg1
- 2.Qxg5#
- 1...Sh2
- 2.Qxg5#
- 1...Sd4
- 2.Qxg5#
- 1...Sh4
- 2.Qxg5#
- 1...Sh3
- 2.Rf7#
- 2.Qf7#
- 2.Qf5#
- 1...Se4
- 2.Se2#
- 2.Qf5#
- 1...Sf7
- 2.Rxf7#
- 2.Qxf7#
- 2.Qf5#
- 1...Sh7
- 2.Qf5#
- 1...Bxg7!
- 1...Sxe5
- 1.Qh6?
- 1...Kxg4
- 2.Ra4#
- 1...Sxe5
- 2.Qxg5#
- 1...Se1
- 2.Qxg5#
- 1...Sg1
- 2.Qxg5#
- 1...Sh2
- 2.Qxg5#
- 1...Sd4
- 2.Qxg5#
- 1...Sh4
- 2.Qxg5#
- 1...gxh6!
- 1...Kxg4
- 1.Ka1?
- Keys
- 1.Qh1!
- 1...Kxg4
- 2.Ra4#
- 1...Sxe5
- 2.Sh5#
- 1...Sxe6
- 2.Qxf3#
- 1...Se1
- 2.Sh5#
- 1...Sg1
- 2.Sh5#
- 1...Sh2
- 2.Sh5#
- 1...Sd4
- 2.Sh5#
- 1...Sh4
- 2.Sh5#
- 1...Sh3
- 2.Qxf3#
- 1...Se4
- 2.Se2#
- 2.Sh5#
- 2.Qxf3#
- 1...Sf7
- 2.Qxf3#
- 1...Sh7
- 2.Qxf3#
- 1...Kxg4
- 1.Qh1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 10
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD::QAB1(H),XS(e)
- S(c);N_GUARD,XP(G)::QAB1(H),XS(e)
- S(e);OGATE::QAR1(H)
- S(e);OGATE,XP(I)::QAR1(H)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- S(c);N_GUARD,XP(G)::QAB1(H),XS(e)
- S(e);OGATE,XP(I)::QAR1(H)
- S(c);N_GUARD::QAB1(H),XS(e)
- S(e);OGATE::QAR1(H)
- Refutation
- P(b);CHECK
- Try
- K(B);P-FLIGHT
- Vars
- S(c);N_GUARD,XP(G)::QAB1(H),XS(e)
- S(e);OGATE,XP(I)::QAR1(H)
- S(c);N_GUARD::QAB1(H),XS(e)
- S(e);OGATE::QAR1(H)
- Refutation
- P(b);
- Try
- K(B);S_FLIGHT
- Vars
- S(c);N_GUARD,XP(G)::QAB1(H),XS(e)
- S(e);OGATE,XP(I)::QAR1(H)
- S(c);N_GUARD::QAB1(H),XS(e)
- S(e);OGATE::QAR1(H)
- Refutation
- P(b);
- Try
- K(B);P-FLIGHT,XP(b)
- Vars
- S(c);N_GUARD,XP(G)::QAB1(H),XS(e)
- S(e);OGATE,XP(I)::QAR1(H)
- S(c);N_GUARD::QAB1(H),XS(e)
- S(e);OGATE::QAR1(H)
- Refutation
- S(c);CHECK
- Try
- R(F);CHECK
- Vars
- S(c);P_SPINS(c)::QAB1(H),XS(e)
- Refutation
- K(d);P_SPINS(e),S_FLIGHT,XP(G)
- Try
- R(F);
- Vars
- S(c);N_GUARD,XP(G)::QAB1(H),XS(e)
- S(e);OGATE,XP(I)::QAR1(H)
- S(c);N_GUARD::QAB1(H),XS(e)
- S(e);OGATE::QAR1(H)
- Refutation
- P(f);
- Try
- R(F);
- Vars
- S(c);N_GUARD,XP(G)::QAB1(H),XS(e)
- S(e);OGATE,XP(I)::QAR1(H)
- S(c);N_GUARD::QAB1(H),XS(e)
- S(e);OGATE::QAR1(H)
- Refutation
- P(f);
- Try
- R(F);XP(f)
- Vars
- S(c);N_GUARD,XP(G)::QAB1(H),XS(e)
- S(e);OGATE,XP(I)::QAR1(H)
- S(c);N_GUARD::QAB1(H),XS(e)
- S(e);OGATE::QAR1(H)
- Refutation
- K(d);P_SPINS(e),S_FLIGHT,XP(G)
- Try
- R(J);XP(h)
- Vars
- S(c);N_GUARD,XP(G)::QAB1(H),XS(e)
- S(c);N_GUARD::QAB1(H),XS(e)
- S(e);OGATE::QAR1(H)
- Refutation
- B(i);P_PINP(G),XR(J)
- Try
- Q(H);P_PINS(e)
- Vars
- K(d);N_SPINS(e),P-FLIGHT,P_SPINS(c),XP(E)::R(F)
- S(c);N_GUARD,XP(G)::QAB1(H),XS(e)
- S(c);N_GUARD::QAB1(H),XS(e)
- Refutation
- P(h);N_SPINS(e),XQ(H)
- Try
- Actual
- Q(H);
- Vars
- K(d);P-FLIGHT,P_SPINS(c),XP(E)::R(F)
- S(c);XP(G)::S(D)
- S(e);N_GUARD,XP(I)::QAR1(H),XS(c)
- S(c);::S(D)
- S(e);N_GUARD::QAR1(H),XS(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).