MESON Chess Problem Database
Problem Display
PID: 58620 (8/1nn2Q2/p4PK1/Rb4P1/1pNBkp2/1N1p3R/1P1p4/3r4 w - - 0 1)
Zilahi, Zoltan
Het Belgisch Schaakbord (L'Echiquier Belge), 1955
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Scxd2#
- 1...Rb1
- 2.Scxd2#
- 1...Rc1
- 2.Scxd2#
- 1...Re1
- 2.Scxd2#
- 1...Rf1
- 2.Scxd2#
- 1...Rg1
- 2.Scxd2#
- 1...Rh1
- 2.Scxd2#
- 1...Ba4
- 2.Re5#
- 1...Bxc4
- 2.Re5#
- 1...Bc6
- 2.Re5#
- 1...Bd7
- 2.Re5#
- 1...Be8
- 2.Re5#
- 1...Sxa5
- 2.Sd6#
- 1...Sc5
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sd8
- 2.Sd6#
- 1...Sd5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sa8
- 2.Qe6#
- 1...Se8
- 2.Qe6#
- 1...f3
- 2.Rh4#
- 1...Ra1
- Tries
- 1.Bg1?
- 1...Bxc4
- 2.Qxc4#
- 1...Sxa5
- 2.Sc5#
- 1...Se6
- 2.Qxe6#
- 1...f3
- 2.Rh4#
- 1...Ra1
- 2.Sbxd2#
- 1...Rb1
- 2.Sbxd2#
- 1...Rc1
- 2.Sbxd2#
- 1...Re1
- 2.Sbxd2#
- 1...Rf1
- 2.Sbxd2#
- 1...Ba4
- 2.Re5#
- 1...Bc6
- 2.Re5#
- 1...Bd7
- 2.Re5#
- 1...Be8
- 2.Re5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...Sd5
- 2.Qe6#
- 1...Sa8
- 2.Qe6#
- 1...Se8
- 2.Qe6#
- 1...Rxg1!
- 1...Bxc4
- 1.Bc3?
- 1...Bxc4
- 2.Re5#
- 2.Qxc4#
- 1...Sxa5
- 2.Sc5#
- 2.Sd6#
- 1...Se6
- 2.Qxe6#
- 1...f3
- 2.Rh4#
- 1...Ra1
- 2.Sbxd2#
- 2.Scxd2#
- 1...Rb1
- 2.Sbxd2#
- 2.Scxd2#
- 1...Rc1
- 2.Sbxd2#
- 2.Scxd2#
- 1...Re1
- 2.Sbxd2#
- 2.Scxd2#
- 1...Rf1
- 2.Sbxd2#
- 2.Scxd2#
- 1...Rg1
- 2.Sbxd2#
- 2.Scxd2#
- 1...Rh1
- 2.Sbxd2#
- 2.Scxd2#
- 1...Ba4
- 2.Re5#
- 1...Bc6
- 2.Re5#
- 1...Bd7
- 2.Re5#
- 1...Be8
- 2.Re5#
- 1...Sc5
- 2.Sxc5#
- 2.Sd6#
- 1...Sd6
- 2.Sc5#
- 2.Sxd6#
- 1...Sd8
- 2.Sc5#
- 2.Sd6#
- 1...Sd5
- 2.Qe6#
- 1...Sa8
- 2.Qe6#
- 1...Se8
- 2.Qe6#
- 1...bxc3!
- 1...Bxc4
- 1.Be3?
- 1...Bxc4
- 2.Qxc4#
- 1...Sxa5
- 2.Sc5#
- 1...Se6
- 2.Qxe6#
- 1...Ra1
- 2.Sbxd2#
- 1...Rb1
- 2.Sbxd2#
- 1...Rc1
- 2.Sbxd2#
- 1...Re1
- 2.Sbxd2#
- 1...Rf1
- 2.Sbxd2#
- 1...Rg1
- 2.Sbxd2#
- 1...Rh1
- 2.Sbxd2#
- 1...Ba4
- 2.Re5#
- 1...Bc6
- 2.Re5#
- 1...Bd7
- 2.Re5#
- 1...Be8
- 2.Re5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...Sd5
- 2.Qe6#
- 1...Sa8
- 2.Qe6#
- 1...Se8
- 2.Qe6#
- 1...f3
- 2.Rh4#
- 1...fxe3!
- 1...Bxc4
- 1.Rg3?
- 1...Bxc4
- 2.Re5#
- 1...Sxa5
- 2.Sd6#
- 1...Se6
- 2.Qxe6#
- 1...f3
- 2.Rg4#
- 1...Sc5
- 2.Sd6#
- 1...Ra1
- 2.Scxd2#
- 1...Rb1
- 2.Scxd2#
- 1...Rc1
- 2.Scxd2#
- 1...Re1
- 2.Scxd2#
- 1...Rf1
- 2.Scxd2#
- 1...Rg1
- 2.Scxd2#
- 1...Rh1
- 2.Scxd2#
- 1...Ba4
- 2.Re5#
- 1...Bc6
- 2.Re5#
- 1...Bd7
- 2.Re5#
- 1...Be8
- 2.Re5#
- 1...Sd6
- 2.Sxd6#
- 1...Sd8
- 2.Sd6#
- 1...Sd5
- 2.Qe6#
- 1...Sa8
- 2.Qe6#
- 1...Se8
- 2.Qe6#
- 1...fxg3!
- 1...Bxc4
- 1.Rxb5?
- threat
- 2.Re5#
- 1...Sxb5
- 2.Qe6#
- 2.Qxb7#
- 1...f3
- 2.Rh4#
- 1...Sc5
- 2.Sd6#
- 1...Sd5
- 2.Qxd5#
- 2.Qe6#
- 1...axb5!
- threat
- 1.Qg8?
- 1...Bxc4
- 2.Re5#
- 1...Sxa5
- 2.Sd6#
- 1...Se6
- 2.Qxe6#
- 1...f3
- 2.Rh4#
- 1...Ba4
- 2.Re5#
- 1...Ra1
- 2.Scxd2#
- 1...Rb1
- 2.Scxd2#
- 1...Rc1
- 2.Scxd2#
- 1...Re1
- 2.Scxd2#
- 1...Rf1
- 2.Scxd2#
- 1...Rg1
- 2.Scxd2#
- 1...Rh1
- 2.Scxd2#
- 1...Bc6
- 2.Re5#
- 1...Bd7
- 2.Re5#
- 1...Sc5
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sd8
- 2.Sd6#
- 1...Sd5
- 2.Qe6#
- 1...Sa8
- 2.Qe6#
- 1...Se8
- 2.Qe6#
- 1...Be8+!
- 1...Bxc4
- 1.Qd7?
- threat
- 2.Qf5#
- 1...Bxd7
- 2.Re5#
- 1...Se6
- 2.Qxe6#
- 1...Sd6!
- threat
- 1.Qe7+?
- 1...Se6
- 2.Qxe6#
- 1...Kd5!
- 1...Se6
- 1.Bg1?
- Keys
- 1.Bf2!
- 1...Bxc4
- 2.Qxc4#
- 1...Sxa5
- 2.Sc5#
- 1...Se6
- 2.Qxe6#
- 1...f3
- 2.Rh4#
- 1...Ra1
- 2.Sbxd2#
- 1...Rb1
- 2.Sbxd2#
- 1...Rc1
- 2.Sbxd2#
- 1...Re1
- 2.Sbxd2#
- 1...Rf1
- 2.Sbxd2#
- 1...Rg1
- 2.Sbxd2#
- 1...Rh1
- 2.Sbxd2#
- 1...Ba4
- 2.Re5#
- 1...Bc6
- 2.Re5#
- 1...Bd7
- 2.Re5#
- 1...Be8
- 2.Re5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...Sd5
- 2.Qe6#
- 1...Sa8
- 2.Qe6#
- 1...Se8
- 2.Qe6#
- 1...Bxc4
- 1.Bf2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 12
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::S(D),XP(b)
- R(a);N_GUARD,P_PINP(G)::S(D),XP(b)
- B(g);OGATE::R1(F)
- B(g);OGATE,XS(D)::R1(F)
- B(g);OGATE,P_PINQ(J)::R1(F)
- S(i);N_GUARD,XR(F)::S(D)
- S(i);N_GUARD::S(D)
- S(i);N_GUARD::S(D),XS(i)
- S(j);N_GUARD::QAR2(J)
- S(j);N_GUARD::QAR2(J),XS(j)
- P(f);OGATEB,SBLOCK::R(C)
- Tries
- Try
- B(E);
- Vars
- B(g);OGATE,XS(D)::QAR2(J),XB(g)
- S(i);N_GUARD,XR(F)::S(B)
- S(j);N_GUARD::QAR2(J),XS(j)
- P(f);OGATEB,SBLOCK::R(C)
- R(a);N_GUARD::S(B),XP(b)
- B(g);OGATE::R1(F)
- B(g);OGATE,P_PINQ(J)::R1(F)
- S(i);N_GUARD::S(B),XS(i)
- S(i);N_GUARD::S(B)
- S(j);N_GUARD::QAR2(J)
- Refutation
- R(a);P_PINP(G),XB(E)
- Try
- B(E);
- Vars
- S(j);N_GUARD::QAR2(J),XS(j)
- P(f);OGATEB,SBLOCK::R(C)
- B(g);OGATE::R1(F)
- B(g);OGATE,P_PINQ(J)::R1(F)
- S(j);N_GUARD::QAR2(J)
- Refutation
- P(d);XB(E)
- Try
- B(E);
- Vars
- B(g);OGATE,XS(D)::QAR2(J),XB(g)
- S(i);N_GUARD,XR(F)::S(B)
- S(j);N_GUARD::QAR2(J),XS(j)
- R(a);N_GUARD::S(B),XP(b)
- R(a);N_GUARD,P_PINP(G)::S(B),XP(b)
- B(g);OGATE::R1(F)
- B(g);OGATE,P_PINQ(J)::R1(F)
- S(i);N_GUARD::S(B),XS(i)
- S(i);N_GUARD::S(B)
- S(j);N_GUARD::QAR2(J)
- P(f);OGATEB,SBLOCK::R(C)
- Refutation
- P(f);XB(E)
- Try
- R(C);
- Vars
- B(g);OGATE,XS(D)::R1(F)
- S(i);N_GUARD,XR(F)::S(D)
- S(j);N_GUARD::QAR2(J),XS(j)
- P(f);OGATEB,SBLOCK::R(C)
- S(i);N_GUARD::S(D)
- R(a);N_GUARD::S(D),XP(b)
- B(g);OGATE::R1(F)
- B(g);OGATE,P_PINQ(J)::R1(F)
- S(i);N_GUARD::S(D),XS(i)
- S(j);N_GUARD::QAR2(J)
- Refutation
- P(f);XR(C)
- Try
- R(F);XB(g)
- Threat
- R1(F)
- Vars
- P(f);OGATEB,SBLOCK::R(C)
- S(i);N_GUARD::S(D)
- Refutation
- P(h);XR(F)
- Try
- Q(J);
- Vars
- B(g);OGATE,XS(D)::R1(F)
- S(i);N_GUARD,XR(F)::S(D)
- S(j);N_GUARD::QAR2(J),XS(j)
- P(f);OGATEB,SBLOCK::R(C)
- B(g);OGATE::R1(F)
- R(a);N_GUARD::S(D),XP(b)
- R(a);N_GUARD,P_PINP(G)::S(D),XP(b)
- S(i);N_GUARD::S(D)
- S(i);N_GUARD::S(D),XS(i)
- S(j);N_GUARD::QAR2(J)
- Refutation
- B(g);CHECK
- Try
- Q(J);
- Threat
- QAB1(J)
- Vars
- B(g);OGATE,XQ(J)::R1(F)
- S(j);N_GUARD::QAR2(J),XS(j)
- Refutation
- S(i);
- Try
- Q(J);CHECK
- Vars
- S(j);N_GUARD,P_SPINS(j)::QAR2(J),XS(j)
- Refutation
- K(e);P_SPINB(g),S_FLIGHT
- Try
- Actual
- B(E);
- Vars
- B(g);OGATE,XS(D)::QAR2(J),XB(g)
- S(i);N_GUARD,XR(F)::S(B)
- S(j);N_GUARD::QAR2(J),XS(j)
- P(f);OGATEB,SBLOCK::R(C)
- R(a);N_GUARD::S(B),XP(b)
- R(a);N_GUARD,P_PINP(G)::S(B),XP(b)
- B(g);OGATE::R1(F)
- B(g);OGATE,P_PINQ(J)::R1(F)
- S(i);N_GUARD::S(B),XS(i)
- S(i);N_GUARD::S(B)
- S(j);N_GUARD::QAR2(J)
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).