MESON Chess Problem Database
Problem Display
PID: 31474 (6K1/5P2/3p4/3P2B1/2B3N1/1n1P1r2/1R4N1/2nk4 w - - 0 1)
Weenink, Henri Gerard Maria
The Problemist, 1927
#2
9 + 5
| 16055 | HGM Weenink (Euwe/Niemeijer/Rueb/Trotsenburg) | 1932 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.S4e3#
- 1...Rf2
- 2.Sxf2#
- 2.S4e3#
- 1...Rxd3
- 2.Sf2#
- 1...Re3
- 2.Sf2#
- 2.S4xe3#
- 1...Rg3
- 2.Sf2#
- 1...Rh3
- 2.Sf2#
- 1...Rf4
- 2.S4e3#
- 1...Rf5
- 2.S4e3#
- 1...Rf6
- 2.S4e3#
- 1...Rxf7
- 2.S4e3#
- 1...Sa2
- 2.Bxb3#
- 1...Se2
- 2.Bxb3#
- 1...Sxd3
- 2.Bxb3#
- 1...Sa1
- 2.Rd2#
- 1...Sd2
- 2.Rxd2#
- 1...Sd4
- 2.Rd2#
- 1...Sa5
- 2.Rd2#
- 1...Sc5
- 2.Rd2#
- 1...Rf1
- Tries
- 1.Kg7?
- 1...Rxd3
- 2.Sf2#
- 1...Sxd3
- 2.Bxb3#
- 1...Sd2
- 2.Rxd2#
- 1...Rf1
- 2.S4e3#
- 1...Rf2
- 2.Sxf2#
- 2.S4e3#
- 1...Re3
- 2.Sf2#
- 2.S4xe3#
- 1...Rg3
- 2.Sf2#
- 1...Rh3
- 2.Sf2#
- 1...Rf4
- 2.S4e3#
- 1...Rf5
- 2.S4e3#
- 1...Rf6
- 2.S4e3#
- 1...Sa2
- 2.Bxb3#
- 1...Se2
- 2.Bxb3#
- 1...Sa1
- 2.Rd2#
- 1...Sd4
- 2.Rd2#
- 1...Sa5
- 2.Rd2#
- 1...Sc5
- 2.Rd2#
- 1...Rxf7+!
- 1...Rxd3
- 1.Kf8?
- 1...Rxd3
- 2.Sf2#
- 1...Sxd3
- 2.Bxb3#
- 1...Sd2
- 2.Rxd2#
- 1...Rf1
- 2.S4e3#
- 1...Rf2
- 2.Sxf2#
- 2.S4e3#
- 1...Re3
- 2.Sf2#
- 2.S4xe3#
- 1...Rg3
- 2.Sf2#
- 1...Rh3
- 2.Sf2#
- 1...Rf4
- 2.S4e3#
- 1...Rf5
- 2.S4e3#
- 1...Rf6
- 2.S4e3#
- 1...Sa2
- 2.Bxb3#
- 1...Se2
- 2.Bxb3#
- 1...Sa1
- 2.Rd2#
- 1...Sd4
- 2.Rd2#
- 1...Sa5
- 2.Rd2#
- 1...Sc5
- 2.Rd2#
- 1...Rxf7+!
- 1...Rxd3
- 1.Kh8?
- 1...Rxd3
- 2.Sf2#
- 1...Rxf7
- 2.S4e3#
- 1...Sxd3
- 2.Bxb3#
- 1...Sd2
- 2.Rxd2#
- 1...Rf1
- 2.S4e3#
- 1...Rf2
- 2.Sxf2#
- 2.S4e3#
- 1...Re3
- 2.Sf2#
- 2.S4xe3#
- 1...Rg3
- 2.Sf2#
- 1...Rf4
- 2.S4e3#
- 1...Rf5
- 2.S4e3#
- 1...Rf6
- 2.S4e3#
- 1...Sa2
- 2.Bxb3#
- 1...Se2
- 2.Bxb3#
- 1...Sa1
- 2.Rd2#
- 1...Sd4
- 2.Rd2#
- 1...Sa5
- 2.Rd2#
- 1...Sc5
- 2.Rd2#
- 1...Rh3+!
- 1...Rxd3
- 1.Bf4?
- 1...Rxd3
- 2.Sf2#
- 1...Rxf4
- 2.S4e3#
- 1...Sxd3
- 2.Bxb3#
- 1...Sd2
- 2.Rxd2#
- 1...Sa2
- 2.Bxb3#
- 1...Rf1
- 2.S4e3#
- 1...Rf2
- 2.Sxf2#
- 2.S4e3#
- 1...Re3
- 2.Sf2#
- 2.S4xe3#
- 1...Rh3
- 2.Sf2#
- 1...Se2
- 2.Bxb3#
- 1...Sa1
- 2.Rd2#
- 1...Sd4
- 2.Rd2#
- 1...Sa5
- 2.Rd2#
- 1...Sc5
- 2.Rd2#
- 1...Rg3!
- 1...Rxd3
- 1.Bh6?
- 1...Rxd3
- 2.Sf2#
- 1...Rxf7
- 2.S4e3#
- 1...Sxd3
- 2.Bxb3#
- 1...Sd2
- 2.Rxd2#
- 1...Sa2
- 2.Bxb3#
- 1...Rf1
- 2.S4e3#
- 1...Rf2
- 2.Sxf2#
- 2.S4e3#
- 1...Re3
- 2.Sf2#
- 2.S4xe3#
- 1...Rh3
- 2.Sf2#
- 1...Rf4
- 2.S4e3#
- 1...Rf5
- 2.S4e3#
- 1...Rf6
- 2.S4e3#
- 1...Se2
- 2.Bxb3#
- 1...Sa1
- 2.Rd2#
- 1...Sd4
- 2.Rd2#
- 1...Sa5
- 2.Rd2#
- 1...Sc5
- 2.Rd2#
- 1...Rg3!
- 1...Rxd3
- 1.Ra2?
- 1...Rxd3
- 2.Sf2#
- 1...Rxf7
- 2.S4e3#
- 1...Sxd3
- 2.Bxb3#
- 1...Sd2
- 2.Rxd2#
- 1...Rf1
- 2.S4e3#
- 1...Rf2
- 2.Sxf2#
- 2.S4e3#
- 1...Re3
- 2.Sf2#
- 2.S4xe3#
- 1...Rg3
- 2.Sf2#
- 1...Rh3
- 2.Sf2#
- 1...Rf4
- 2.S4e3#
- 1...Rf5
- 2.S4e3#
- 1...Rf6
- 2.S4e3#
- 1...Se2
- 2.Bxb3#
- 1...Sa1
- 2.Rd2#
- 1...Sd4
- 2.Rd2#
- 1...Sa5
- 2.Rd2#
- 1...Sc5
- 2.Rd2#
- 1...Sxa2!
- 1...Rxd3
- 1.f8Q?
- 1...Rxd3
- 2.Sf2#
- 2.Qf1#
- 1...Sxd3
- 2.Bxb3#
- 2.Qxf3#
- 1...Sd2
- 2.Rxd2#
- 1...Sa2
- 2.Bxb3#
- 2.Qxf3#
- 1...Rf1
- 2.S4e3#
- 2.Qxf1#
- 1...Rf2
- 2.Sxf2#
- 2.S4e3#
- 1...Re3
- 2.Sf2#
- 2.S4xe3#
- 1...Rg3
- 2.Sf2#
- 2.Qf1#
- 1...Rh3
- 2.Sf2#
- 2.Qf1#
- 1...Rf4
- 2.S4e3#
- 1...Rf5
- 2.S4e3#
- 1...Rf6
- 2.S4e3#
- 1...Rf7
- 2.S4e3#
- 1...Se2
- 2.Bxb3#
- 1...Sa1
- 2.Rd2#
- 1...Sd4
- 2.Rd2#
- 1...Sa5
- 2.Rd2#
- 1...Sc5
- 2.Rd2#
- 1...Rxf8+!
- 1...Rxd3
- 1.f8S?
- 1...Rxd3
- 2.Sf2#
- 1...Sxd3
- 2.Bxb3#
- 1...Sd2
- 2.Rxd2#
- 1...Sa2
- 2.Bxb3#
- 1...Rf1
- 2.S4e3#
- 1...Rf2
- 2.Sxf2#
- 2.S4e3#
- 1...Re3
- 2.Sf2#
- 2.S4xe3#
- 1...Rg3
- 2.Sf2#
- 1...Rh3
- 2.Sf2#
- 1...Rf4
- 2.S4e3#
- 1...Rf5
- 2.S4e3#
- 1...Rf6
- 2.S4e3#
- 1...Rf7
- 2.S4e3#
- 1...Se2
- 2.Bxb3#
- 1...Sa1
- 2.Rd2#
- 1...Sd4
- 2.Rd2#
- 1...Sa5
- 2.Rd2#
- 1...Sc5
- 2.Rd2#
- 1...Rxf8+!
- 1...Rxd3
- 1.f8B?
- 1...Rxd3
- 2.Sf2#
- 1...Sxd3
- 2.Bxb3#
- 1...Sd2
- 2.Rxd2#
- 1...Sa2
- 2.Bxb3#
- 1...Rf1
- 2.S4e3#
- 1...Rf2
- 2.Sxf2#
- 2.S4e3#
- 1...Re3
- 2.Sf2#
- 2.S4xe3#
- 1...Rg3
- 2.Sf2#
- 1...Rh3
- 2.Sf2#
- 1...Rf4
- 2.S4e3#
- 1...Rf5
- 2.S4e3#
- 1...Rf6
- 2.S4e3#
- 1...Rf7
- 2.S4e3#
- 1...Se2
- 2.Bxb3#
- 1...Sa1
- 2.Rd2#
- 1...Sd4
- 2.Rd2#
- 1...Sa5
- 2.Rd2#
- 1...Sc5
- 2.Rd2#
- 1...Rxf8+!
- 1...Rxd3
- 1.f8R?
- 1...Rxd3
- 2.Sf2#
- 2.Rf1#
- 1...Sxd3
- 2.Bxb3#
- 1...Sd2
- 2.Rxd2#
- 1...Sa2
- 2.Bxb3#
- 1...Rf1
- 2.S4e3#
- 2.Rxf1#
- 1...Rf2
- 2.Sxf2#
- 2.S4e3#
- 1...Re3
- 2.Sf2#
- 2.S4xe3#
- 1...Rg3
- 2.Sf2#
- 2.Rf1#
- 1...Rh3
- 2.Sf2#
- 2.Rf1#
- 1...Rf4
- 2.S4e3#
- 1...Rf5
- 2.S4e3#
- 1...Rf6
- 2.S4e3#
- 1...Rf7
- 2.S4e3#
- 1...Se2
- 2.Bxb3#
- 1...Sa1
- 2.Rd2#
- 1...Sd4
- 2.Rd2#
- 1...Sa5
- 2.Rd2#
- 1...Sc5
- 2.Rd2#
- 1...Rxf8+!
- 1...Rxd3
- 1.Kg7?
- Keys
- 1.d4!
- 1...Rxf7
- 2.S4e3#
- 1...Sxd4
- 2.Rd2#
- 1...Sa2
- 2.Be2#
- 1...Rf1
- 2.S4e3#
- 1...Rf2
- 2.Sxf2#
- 2.S4e3#
- 1...Rc3
- 2.Sf2#
- 1...Rd3
- 2.Sf2#
- 1...Re3
- 2.Sf2#
- 2.S4xe3#
- 1...Rg3
- 2.Sf2#
- 1...Rh3
- 2.Sf2#
- 1...Rf4
- 2.S4e3#
- 1...Rf5
- 2.S4e3#
- 1...Rf6
- 2.S4e3#
- 1...Se2
- 2.Bxe2#
- 1...Sd3
- 2.Bxb3#
- 1...Sa1
- 2.Rd2#
- 1...Sd2
- 2.Rxd2#
- 1...Sa5
- 2.Rd2#
- 1...Sc5
- 2.Rd2#
- 1...Rxf7
- 1.d4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(d);N_GUARD::S(E)
- R(d);N_GUARD,XP(C)::S(E)
- R(d);N_GUARD,XP(H)::S(E)
- S(a);N_GUARD::B(D),XS(c)
- S(a);N_GUARD,XP(C)::B(D),XS(c)
- S(c);N_GUARD::R1(A)
- S(c);N_GUARD::R1(A),XS(c)
- Tries
- Try
- K(I);P-FLIGHT
- Vars
- R(d);N_GUARD,XP(C)::S(E)
- S(a);N_GUARD,XP(C)::B(D),XS(c)
- S(c);N_GUARD::R1(A),XS(c)
- R(d);N_GUARD::S(E)
- S(a);N_GUARD::B(D),XS(c)
- S(c);N_GUARD::R1(A)
- Refutation
- R(d);CHECK,XP(H)
- Try
- K(I);P-FLIGHT,P_SPINP(H)
- Vars
- R(d);N_GUARD,N_PINP(H),XP(C)::S(E)
- S(a);N_GUARD,XP(C)::B(D),XS(c)
- S(c);N_GUARD::R1(A),XS(c)
- R(d);N_GUARD::S(E)
- R(d);N_GUARD,N_PINP(H)::S(E)
- S(a);N_GUARD::B(D),XS(c)
- S(c);N_GUARD::R1(A)
- Refutation
- R(d);CHECK,XP(H)
- Try
- K(I);P-FLIGHT
- Vars
- R(d);N_GUARD,XP(C)::S(E)
- R(d);N_GUARD,XP(H)::S(E)
- S(a);N_GUARD,XP(C)::B(D),XS(c)
- S(c);N_GUARD::R1(A),XS(c)
- R(d);N_GUARD::S(E)
- S(a);N_GUARD::B(D),XS(c)
- S(c);N_GUARD::R1(A)
- Refutation
- R(d);CHECK
- Try
- B(G);
- Vars
- R(d);N_GUARD,XP(C)::S(E)
- R(d);N_GUARD,XB(G)::S(E)
- S(a);N_GUARD,XP(C)::B(D),XS(c)
- S(c);N_GUARD::R1(A),XS(c)
- S(a);N_GUARD::B(D),XS(c)
- R(d);N_GUARD::S(E)
- S(c);N_GUARD::R1(A)
- Refutation
- R(d);P_PINS(E)
- Try
- B(G);
- Vars
- R(d);N_GUARD,XP(C)::S(E)
- R(d);N_GUARD,XP(H)::S(E)
- S(a);N_GUARD,XP(C)::B(D),XS(c)
- S(c);N_GUARD::R1(A),XS(c)
- S(a);N_GUARD::B(D),XS(c)
- R(d);N_GUARD::S(E)
- S(c);N_GUARD::R1(A)
- Refutation
- R(d);P_PINS(E)
- Try
- R(A);
- Vars
- R(d);N_GUARD,XP(C)::S(E)
- R(d);N_GUARD,XP(H)::S(E)
- S(a);N_GUARD,XP(C)::B(D),XS(c)
- S(c);N_GUARD::R1(A),XS(c)
- R(d);N_GUARD::S(E)
- S(a);N_GUARD::B(D),XS(c)
- S(c);N_GUARD::R1(A)
- Refutation
- S(a);XR(A)
- Try
- P(H);
- Vars
- S(c);N_GUARD::R1(A),XS(c)
- R(d);N_GUARD::S(E)
- S(a);N_GUARD::B(D),XS(c)
- S(c);N_GUARD::R1(A)
- Refutation
- R(d);CHECK,XQ(H)
- Try
- P(H);
- Vars
- R(d);N_GUARD,XP(C)::S(E)
- S(a);N_GUARD,XP(C)::B(D),XS(c)
- S(c);N_GUARD::R1(A),XS(c)
- S(a);N_GUARD::B(D),XS(c)
- R(d);N_GUARD::S(E)
- S(c);N_GUARD::R1(A)
- Refutation
- R(d);CHECK,XS(H)
- Try
- P(H);
- Vars
- R(d);N_GUARD,XP(C)::S(E)
- S(a);N_GUARD,XP(C)::B(D),XS(c)
- S(c);N_GUARD::R1(A),XS(c)
- S(a);N_GUARD::B(D),XS(c)
- R(d);N_GUARD::S(E)
- S(c);N_GUARD::R1(A)
- Refutation
- R(d);CHECK,XB(H)
- Try
- P(H);
- Vars
- S(a);N_GUARD,XP(C)::B(D),XS(c)
- S(c);N_GUARD::R1(A),XS(c)
- S(a);N_GUARD::B(D),XS(c)
- R(d);N_GUARD::S(E)
- S(c);N_GUARD::R1(A)
- Refutation
- R(d);CHECK,XR(H)
- Try
- Actual
- P(C);
- Vars
- R(d);N_GUARD,XP(H)::S(E)
- S(c);N_GUARD,XP(C)::R1(A)
- S(a);N_GUARD::B(D)
- R(d);N_GUARD::S(E)
- S(a);N_GUARD::B(D),XS(a)
- S(a);N_GUARD,S_CUTR(d)::B(D),XS(c)
- S(c);N_GUARD::R1(A)
- S(c);N_GUARD::R1(A),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).