MESON Chess Problem Database
Problem Display
PID: 203494 (8/1r2p3/N1p1r3/2Bkp1R1/3P4/2nP3P/2PbN1K1/8 w - - 0 1)
Kallen, S
Helsingin Sanomat, 1924
#2
9 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rd6
- 2.Rxe5#
- 1...Rf6
- 2.Rxe5#
- 1...Rh6
- 2.Rxe5#
- 1...Rb1
- 2.Sc7#
- 1...Rb2
- 2.Sc7#
- 1...Rb3
- 2.Sc7#
- 1...Rb4
- 2.Sxb4#
- 2.Sc7#
- 1...Rb5
- 2.Sc7#
- 1...Rb6
- 2.Sc7#
- 1...Ra7
- 2.Sb4#
- 1...Rc7
- 2.Sb4#
- 2.Sxc7#
- 1...Rd7
- 2.Sb4#
- 1...Rb8
- 2.Sc7#
- 1...Bc1
- 2.Sxc3#
- 1...Be1
- 2.Sf4#
- 1...Be3
- 2.Sxc3#
- 1...Bf4
- 2.Sxc3#
- 2.Sxf4#
- 1...Bxg5
- 2.Sxc3#
- 1...Sb1
- 2.c4#
- 1...Sd1
- 2.c4#
- 1...Sa2
- 2.c4#
- 1...Sxe2
- 2.c4#
- 1...Sa4
- 2.c4#
- 1...Se4
- 2.c4#
- 1...Sb5
- 2.c4#
- 1...Rd6
- Tries
- 1.Kh1?
- 1...Bxg5
- 2.Sxc3#
- 1...Sxe2
- 2.c4#
- 1...Rd6
- 2.Rxe5#
- 1...Rf6
- 2.Rxe5#
- 1...Rg6
- 2.Rxe5#
- 1...Rh6
- 2.Rxe5#
- 1...Rb2
- 2.Sc7#
- 1...Rb3
- 2.Sc7#
- 1...Rb4
- 2.Sxb4#
- 2.Sc7#
- 1...Rb5
- 2.Sc7#
- 1...Rb6
- 2.Sc7#
- 1...Ra7
- 2.Sb4#
- 1...Rc7
- 2.Sb4#
- 2.Sxc7#
- 1...Rd7
- 2.Sb4#
- 1...Rb8
- 2.Sc7#
- 1...Bc1
- 2.Sxc3#
- 1...Be1
- 2.Sf4#
- 1...Be3
- 2.Sxc3#
- 1...Bf4
- 2.Sxc3#
- 2.Sxf4#
- 1...Sb1
- 2.c4#
- 1...Sd1
- 2.c4#
- 1...Sa2
- 2.c4#
- 1...Sa4
- 2.c4#
- 1...Se4
- 2.c4#
- 1...Sb5
- 2.c4#
- 1...Rb1+!
- 1...Bxg5
- 1.Kf3?
- 1...Bxg5
- 2.Sxc3#
- 1...Sxe2
- 2.c4#
- 1...Rd6
- 2.Rxe5#
- 1...Rg6
- 2.Rxe5#
- 1...Rh6
- 2.Rxe5#
- 1...Rb1
- 2.Sc7#
- 1...Rb2
- 2.Sc7#
- 1...Rb3
- 2.Sc7#
- 1...Rb4
- 2.Sxb4#
- 2.Sc7#
- 1...Rb5
- 2.Sc7#
- 1...Rb6
- 2.Sc7#
- 1...Ra7
- 2.Sb4#
- 1...Rc7
- 2.Sb4#
- 2.Sxc7#
- 1...Rd7
- 2.Sb4#
- 1...Rb8
- 2.Sc7#
- 1...Bc1
- 2.Sxc3#
- 1...Be1
- 2.Sf4#
- 1...Be3
- 2.Sxc3#
- 1...Bf4
- 2.Sxc3#
- 2.Sxf4#
- 1...Sb1
- 2.c4#
- 1...Sd1
- 2.c4#
- 1...Sa2
- 2.c4#
- 1...Sa4
- 2.c4#
- 1...Se4
- 2.c4#
- 1...Sb5
- 2.c4#
- 1...Rf6+!
- 1...Bxg5
- 1.Rf5?
- 1...Sxe2
- 2.c4#
- 1...Rd6
- 2.Rxe5#
- 1...Rf6
- 2.Rxe5#
- 1...Rh6
- 2.Rxe5#
- 1...Rb1
- 2.Sc7#
- 1...Rb2
- 2.Sc7#
- 1...Rb3
- 2.Sc7#
- 1...Rb4
- 2.Sxb4#
- 2.Sc7#
- 1...Rb5
- 2.Sc7#
- 1...Rb6
- 2.Sc7#
- 1...Ra7
- 2.Sb4#
- 1...Rc7
- 2.Sb4#
- 2.Sxc7#
- 1...Rd7
- 2.Sb4#
- 1...Rb8
- 2.Sc7#
- 1...Bc1
- 2.Sxc3#
- 1...Be1
- 2.Sf4#
- 1...Be3
- 2.Sxc3#
- 1...Bf4
- 2.Sxc3#
- 2.Sxf4#
- 1...Bg5
- 2.Sxc3#
- 1...Bh6
- 2.Sxc3#
- 1...Sb1
- 2.c4#
- 1...Sd1
- 2.c4#
- 1...Sa2
- 2.c4#
- 1...Sa4
- 2.c4#
- 1...Se4
- 2.c4#
- 1...Sb5
- 2.c4#
- 1...Rg6+!
- 1...Sxe2
- 1.Rh5?
- 1...Sxe2
- 2.c4#
- 1...Rd6
- 2.Rxe5#
- 1...Rf6
- 2.Rxe5#
- 1...Rh6
- 2.Rxe5#
- 1...Rb1
- 2.Sc7#
- 1...Rb2
- 2.Sc7#
- 1...Rb3
- 2.Sc7#
- 1...Rb4
- 2.Sxb4#
- 2.Sc7#
- 1...Rb5
- 2.Sc7#
- 1...Rb6
- 2.Sc7#
- 1...Ra7
- 2.Sb4#
- 1...Rc7
- 2.Sb4#
- 2.Sxc7#
- 1...Rd7
- 2.Sb4#
- 1...Rb8
- 2.Sc7#
- 1...Bc1
- 2.Sxc3#
- 1...Be1
- 2.Sf4#
- 1...Be3
- 2.Sxc3#
- 1...Bf4
- 2.Sxc3#
- 2.Sxf4#
- 1...Bg5
- 2.Sxc3#
- 1...Bh6
- 2.Sxc3#
- 1...Sb1
- 2.c4#
- 1...Sd1
- 2.c4#
- 1...Sa2
- 2.c4#
- 1...Sa4
- 2.c4#
- 1...Se4
- 2.c4#
- 1...Sb5
- 2.c4#
- 1...Rg6+!
- 1...Sxe2
- 1.h4?
- 1...Bxg5
- 2.Sxc3#
- 1...Sxe2
- 2.c4#
- 1...Rd6
- 2.Rxe5#
- 1...Rf6
- 2.Rxe5#
- 1...Rh6
- 2.Rxe5#
- 1...Rb1
- 2.Sc7#
- 1...Rb2
- 2.Sc7#
- 1...Rb3
- 2.Sc7#
- 1...Rb4
- 2.Sxb4#
- 2.Sc7#
- 1...Rb5
- 2.Sc7#
- 1...Rb6
- 2.Sc7#
- 1...Ra7
- 2.Sb4#
- 1...Rc7
- 2.Sb4#
- 2.Sxc7#
- 1...Rd7
- 2.Sb4#
- 1...Rb8
- 2.Sc7#
- 1...Bc1
- 2.Sxc3#
- 1...Be1
- 2.Sf4#
- 1...Be3
- 2.Sxc3#
- 1...Bf4
- 2.Sxc3#
- 2.Sxf4#
- 1...Sb1
- 2.c4#
- 1...Sd1
- 2.c4#
- 1...Sa2
- 2.c4#
- 1...Sa4
- 2.c4#
- 1...Se4
- 2.c4#
- 1...Sb5
- 2.c4#
- 1...Rg6!
- 1...Bxg5
- 1.Kh1?
- Keys
- 1.Kh2!
- 1...Bf4+
- 2.Sxf4#
- 1...Bxg5
- 2.Sxc3#
- 1...Sxe2
- 2.c4#
- 1...Rd6
- 2.Rxe5#
- 1...Rf6
- 2.Rxe5#
- 1...Rg6
- 2.Rxe5#
- 1...Rh6
- 2.Rxe5#
- 1...Rb1
- 2.Sc7#
- 1...Rb2
- 2.Sc7#
- 1...Rb3
- 2.Sc7#
- 1...Rb4
- 2.Sxb4#
- 2.Sc7#
- 1...Rb5
- 2.Sc7#
- 1...Rb6
- 2.Sc7#
- 1...Ra7
- 2.Sb4#
- 1...Rc7
- 2.Sb4#
- 2.Sxc7#
- 1...Rd7
- 2.Sb4#
- 1...Rb8
- 2.Sc7#
- 1...Bc1
- 2.Sxc3#
- 1...Be1
- 2.Sf4#
- 1...Be3
- 2.Sxc3#
- 1...Sb1
- 2.c4#
- 1...Sd1
- 2.c4#
- 1...Sa2
- 2.c4#
- 1...Sa4
- 2.c4#
- 1...Se4
- 2.c4#
- 1...Sb5
- 2.c4#
- 1...Bf4+
- 1.Kh2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(f);N_GUARD::R1(H),XP(d)
- R(g);N_GUARD::S(I)
- B(a);N_GUARD::S(B),XS(b)
- B(a);N_GUARD::S(B)
- B(a);N_GUARD,N_SPINP(d),XR(H)::S(B),XS(b)
- S(b);OGATE::P(A)
- S(b);OGATE,XS(B)::P(A)
- Tries
- Try
- K(C);S_FLIGHT
- Vars
- B(a);N_GUARD,N_SPINP(d),XR(H)::S(B),XS(b)
- S(b);OGATE,XS(B)::P(A)
- R(f);N_GUARD::R1(H),XP(d)
- R(f);N_GUARD,P_PINP(E)::R1(H),XP(d)
- R(g);N_GUARD::S(I)
- B(a);N_GUARD::S(B),XS(b)
- B(a);N_GUARD::S(B)
- S(b);OGATE::P(A)
- Refutation
- R(g);CHECK
- Try
- K(C);S_FLIGHT
- Vars
- B(a);N_GUARD,N_SPINP(d),XR(H)::S(B),XS(b)
- S(b);OGATE,XS(B)::P(A)
- R(f);N_GUARD::R1(H),XP(d)
- R(g);N_GUARD::S(I)
- B(a);N_GUARD::S(B),XS(b)
- B(a);N_GUARD::S(B)
- S(b);OGATE::P(A)
- Refutation
- R(f);CHECK
- Try
- R(H);
- Vars
- S(b);OGATE,XS(B)::P(A)
- R(f);N_GUARD::R1(H),XP(d)
- R(g);N_GUARD::S(I)
- B(a);N_GUARD::S(B),XS(b)
- B(a);N_GUARD::S(B)
- S(b);OGATE::P(A)
- Refutation
- R(f);CHECK
- Try
- R(H);
- Vars
- S(b);OGATE,XS(B)::P(A)
- R(f);N_GUARD::R1(H),XP(d)
- R(g);N_GUARD::S(I)
- B(a);N_GUARD::S(B),XS(b)
- B(a);N_GUARD::S(B)
- B(a);N_GUARD,N_SPINP(d)::S(B),XS(b)
- S(b);OGATE::P(A)
- Refutation
- R(f);CHECK
- Try
- P(E);
- Vars
- B(a);N_GUARD,N_SPINP(d),XR(H)::S(B),XS(b)
- S(b);OGATE,XS(B)::P(A)
- R(f);N_GUARD::R1(H),XP(d)
- R(g);N_GUARD::S(I)
- B(a);N_GUARD::S(B),XS(b)
- B(a);N_GUARD::S(B)
- S(b);OGATE::P(A)
- Refutation
- R(f);P_PINR(H)
- Try
- Actual
- K(C);P-FLIGHT
- Vars
- B(a);CHECK,N_GUARD::S(B),XB(a)
- B(a);N_GUARD,N_SPINP(d),XR(H)::S(B),XS(b)
- S(b);OGATE,XS(B)::P(A)
- R(f);N_GUARD::R1(H),XP(d)
- R(f);N_GUARD,P_PINP(E)::R1(H),XP(d)
- R(g);N_GUARD::S(I)
- B(a);N_GUARD::S(B),XS(b)
- B(a);N_GUARD::S(B)
- S(b);OGATE::P(A)
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).