MESON Chess Problem Database
Problem Display
PID: 93525 (8/8/2r2P2/R3B3/N1k3p1/pnPb2Q1/B2R1n1K/8 w - - 0 1)
Niemeijer, Meindert
Probleemcomponisten, 1943
#2
9 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rc5
- 2.Sb6#
- 2.Rxc5#
- 1...Ra6
- 2.Rc5#
- 1...Rb6
- 2.Sxb6#
- 2.Rc5#
- 1...Rd6
- 2.Rc5#
- 1...Re6
- 2.Rc5#
- 1...Rxf6
- 2.Rc5#
- 1...Rc7
- 2.Sb6#
- 1...Rc8
- 2.Sb6#
- 1...Bb1
- 2.Rd4#
- 1...Bf1
- 2.Rd4#
- 1...Bc2
- 2.Rd4#
- 1...Be2
- 2.Rd4#
- 1...Be4
- 2.Rd4#
- 1...Bf5
- 2.Rd4#
- 1...Bg6
- 2.Rd4#
- 1...Bh7
- 2.Rd4#
- 1...Sd1
- 2.Qxd3#
- 1...Sh1
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Se4
- 2.Qxd3#
- 1...Rc5
- Tries
- 1.Kg1?
- 1...Rxf6
- 2.Rc5#
- 1...Rc5
- 2.Sb6#
- 2.Rxc5#
- 1...Ra6
- 2.Rc5#
- 1...Rb6
- 2.Sxb6#
- 2.Rc5#
- 1...Rd6
- 2.Rc5#
- 1...Re6
- 2.Rc5#
- 1...Rc7
- 2.Sb6#
- 1...Rc8
- 2.Sb6#
- 1...Bb1
- 2.Rd4#
- 1...Bf1
- 2.Rd4#
- 1...Bc2
- 2.Rd4#
- 1...Be2
- 2.Rd4#
- 1...Be4
- 2.Rd4#
- 1...Bf5
- 2.Rd4#
- 1...Bg6
- 2.Rd4#
- 1...Bh7
- 2.Rd4#
- 1...Sd1
- 2.Qxd3#
- 1...Sh1
- 2.Qxd3#
- 1...Se4
- 2.Qxd3#
- 1...Sh3+!
- 1...Rxf6
- 1.Bb8?
- 1...Rxf6
- 2.Rc5#
- 1...Rc5
- 2.Rxc5#
- 1...Rc7
- 2.Qxc7#
- 1...Ra6
- 2.Rc5#
- 1...Rb6
- 2.Rc5#
- 1...Rd6
- 2.Rc5#
- 1...Re6
- 2.Rc5#
- 1...Bb1
- 2.Rd4#
- 1...Bf1
- 2.Rd4#
- 1...Bc2
- 2.Rd4#
- 1...Be2
- 2.Rd4#
- 1...Be4
- 2.Rd4#
- 1...Bf5
- 2.Rd4#
- 1...Bg6
- 2.Rd4#
- 1...Bh7
- 2.Rd4#
- 1...Sd1
- 2.Qxd3#
- 1...Sh1
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Se4
- 2.Qxd3#
- 1...Rc8!
- 1...Rxf6
- 1.Rd1?
- 1...Rxf6
- 2.Rc5#
- 1...Rc5
- 2.Sb6#
- 2.Rxc5#
- 1...Rc8
- 2.Sb6#
- 1...Ra6
- 2.Rc5#
- 1...Rb6
- 2.Sxb6#
- 2.Rc5#
- 1...Rd6
- 2.Rc5#
- 1...Re6
- 2.Rc5#
- 1...Rc7
- 2.Sb6#
- 1...Bb1
- 2.Rd4#
- 1...Bf1
- 2.Rd4#
- 1...Bc2
- 2.Rd4#
- 1...Be2
- 2.Rd4#
- 1...Be4
- 2.Rd4#
- 1...Bf5
- 2.Rd4#
- 1...Bg6
- 2.Rd4#
- 1...Bh7
- 2.Rd4#
- 1...Sh1
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Se4
- 2.Qxd3#
- 1...Sxd1!
- 1...Rxf6
- 1.Rb2?
- threat
- 2.Bxb3#
- 1...axb2
- 2.Sxb2#
- 1...Rb6
- 2.Sxb6#
- 2.Rc5#
- 1...Bc2!
- threat
- 1.Rxd3?
- threat
- 2.Rd4#
- 1...Rd6
- 2.Rc5#
- 1...Sxd3!
- threat
- 1.Rd5?
- 1...Rxf6
- 2.Rc5#
- 1...Rc5
- 2.Rxc5#
- 1...Bb1
- 2.R2d4#
- 1...Ra6
- 2.Rc5#
- 1...Rb6
- 2.Sxb6#
- 2.Rc5#
- 1...Rd6
- 2.Rc5#
- 1...Re6
- 2.Rc5#
- 1...Rc7
- 2.Sb6#
- 1...Rc8
- 2.Sb6#
- 1...Bf1
- 2.R2d4#
- 1...Bc2
- 2.R2d4#
- 1...Be2
- 2.R2d4#
- 1...Be4
- 2.R2d4#
- 1...Bf5
- 2.R2d4#
- 1...Bg6
- 2.R2d4#
- 1...Bh7
- 2.R2d4#
- 1...Sd1
- 2.Qxd3#
- 1...Sh1
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Se4
- 2.Qxd3#
- 1...Kxd5!
- 1...Rxf6
- 1.Qxf2?
- threat
- 2.Qd4#
- 1...Rd6
- 2.Rc5#
- 2.Qc5#
- 1...g3+!
- threat
- 1.Qf4+?
- 1...Be4
- 2.Rd4#
- 1...Se4!
- 1...Be4
- 1.Qg1?
- 1...Rxf6
- 2.Rc5#
- 1...Rc5
- 2.Sb6#
- 2.Rxc5#
- 1...Bb1
- 2.Rd4#
- 1...Ra6
- 2.Rc5#
- 1...Rb6
- 2.Sxb6#
- 2.Rc5#
- 1...Rd6
- 2.Rc5#
- 1...Re6
- 2.Rc5#
- 1...Rc7
- 2.Sb6#
- 1...Rc8
- 2.Sb6#
- 1...Bf1
- 2.Rd4#
- 1...Bc2
- 2.Rd4#
- 1...Be2
- 2.Rd4#
- 1...Be4
- 2.Rd4#
- 1...Bf5
- 2.Rd4#
- 1...Bg6
- 2.Rd4#
- 1...Bh7
- 2.Rd4#
- 1...Sd1
- 2.Qd4#
- 1...Sh1
- 2.Qd4#
- 1...Sh3
- 2.Qd4#
- 1...Se4
- 2.Qd4#
- 1...g3+!
- 1...Rxf6
- 1.Qe3?
- threat
- 2.Qd4#
- 1...Rd6
- 2.Rc5#
- 2.Qc5#
- 1...g3+!
- threat
- 1.f7?
- 1...Rc5
- 2.Sb6#
- 2.Rxc5#
- 1...Bb1
- 2.Rd4#
- 1...Ra6
- 2.Rc5#
- 1...Rb6
- 2.Sxb6#
- 2.Rc5#
- 1...Rd6
- 2.Rc5#
- 1...Re6
- 2.Rc5#
- 1...Rf6
- 2.Rc5#
- 1...Rg6
- 2.Rc5#
- 1...Rc7
- 2.Sb6#
- 1...Rc8
- 2.Sb6#
- 1...Bf1
- 2.Rd4#
- 1...Bc2
- 2.Rd4#
- 1...Be2
- 2.Rd4#
- 1...Be4
- 2.Rd4#
- 1...Bf5
- 2.Rd4#
- 1...Bg6
- 2.Rd4#
- 1...Bh7
- 2.Rd4#
- 1...Sd1
- 2.Qxd3#
- 1...Sh1
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Se4
- 2.Qxd3#
- 1...Rh6+!
- 1...Rc5
- 1.Kg1?
- Keys
- 1.Bc7!
- 1...Rxf6
- 2.Rc5#
- 1...Rxc7
- 2.Qxc7#
- 1...Rc5
- 2.Rxc5#
- 1...Ra6
- 2.Rc5#
- 1...Rb6
- 2.Rc5#
- 1...Rd6
- 2.Rc5#
- 1...Re6
- 2.Rc5#
- 1...Bb1
- 2.Rd4#
- 1...Bf1
- 2.Rd4#
- 1...Bc2
- 2.Rd4#
- 1...Be2
- 2.Rd4#
- 1...Be4
- 2.Rd4#
- 1...Bf5
- 2.Rd4#
- 1...Bg6
- 2.Rd4#
- 1...Bh7
- 2.Rd4#
- 1...Sd1
- 2.Qxd3#
- 1...Sh1
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Se4
- 2.Qxd3#
- 1...Rxf6
- 1.Bc7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(g);N_GUARD::R1(G)
- R(g);N_GUARD,XP(I)::R1(G)
- R(g);N_GUARD::S(F)
- B(d);OGATE::R1(B)
- S(a);N_GUARD::QAB1(E),XB(d)
- Tries
- Try
- K(C);S_FLIGHT
- Vars
- R(g);N_GUARD,XP(I)::R1(G)
- R(g);N_GUARD::R1(G)
- R(g);N_GUARD::S(F)
- B(d);OGATE::R1(B)
- S(a);N_GUARD::QAB1(E),XB(d)
- Refutation
- S(a);CHECK
- Try
- B(H);
- Vars
- R(g);N_GUARD,XP(I)::R1(G)
- R(g);N_GUARD::R1(G),XR(g)
- R(g);OGATEB::QAR(E),XR(g)
- R(g);N_GUARD::R1(G)
- B(d);OGATE::R1(B)
- S(a);N_GUARD::QAB1(E),XB(d)
- Refutation
- R(g);
- Try
- R(B);
- Vars
- R(g);N_GUARD,XP(I)::R1(G)
- R(g);N_GUARD::S(F)
- R(g);N_GUARD::R1(G)
- B(d);OGATE::R1(B)
- S(a);N_GUARD::QAB1(E),XB(d)
- Refutation
- S(a);XR(B)
- Try
- R(B);
- Threat
- B(A),XS(c)
- Vars
- P(b);XR(B)::S(F),XP(b)
- Refutation
- B(d);
- Try
- R(B);XB(d)
- Threat
- R1(B)
- Vars
- R(g);N_GUARD::R1(G)
- Refutation
- S(a);XR(B)
- Try
- R(G);
- Vars
- R(g);N_GUARD,XP(I)::R1(G)
- R(g);N_GUARD::R1(G),XR(g)
- B(d);OGATE::R1(B)
- R(g);N_GUARD::R1(G)
- R(g);N_GUARD::S(F)
- S(a);N_GUARD::QAB1(E),XB(d)
- Refutation
- K(e);P_SPINB(d),S_FLIGHT,XR(G)
- Try
- Q(E);XS(a)
- Threat
- QAR1(E)
- Refutation
- P(f);CHECK
- Try
- Q(E);CHECK
- Vars
- B(d);OGATE,P_SPINB(d)::R1(B)
- Refutation
- S(a);
- Try
- Q(E);
- Vars
- R(g);N_GUARD,XP(I)::R1(G)
- B(d);OGATE::R1(B)
- R(g);N_GUARD::R1(G)
- R(g);N_GUARD::S(F)
- S(a);OGATE::QAR1(E)
- Refutation
- P(f);CHECK
- Try
- Q(E);
- Threat
- QAR1(E)
- Refutation
- P(f);CHECK
- Try
- P(I);
- Vars
- B(d);OGATE::R1(B)
- R(g);N_GUARD::R1(G)
- R(g);N_GUARD::S(F)
- S(a);N_GUARD::QAB1(E),XB(d)
- Refutation
- R(g);CHECK
- Try
- Actual
- B(H);
- Vars
- R(g);N_GUARD,XP(I)::R1(G)
- R(g);OGATE,XB(H)::QAR(E),XR(g)
- R(g);N_GUARD::R1(G),XR(g)
- R(g);N_GUARD::R1(G)
- B(d);OGATE::R1(B)
- S(a);N_GUARD::QAB1(E),XB(d)
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).