MESON Chess Problem Database
Problem Display
PID: 38799 (2K5/1P6/2pQ4/prp2Rpp/p1k3bR/P2r4/Pn3p2/3N1B2 w - - 0 1)
Hjelle, David
Suomen Shakki, 1947
#2
9 + 12
| 3105 | FIDE Album (1945-1955) | 1964 |
SOLUTION
- SOUND
- Sets
- 1...Rb3
- 2.Qxc5#
- 1...Rb4
- 2.Qxc5#
- 1...Rb6
- 2.Qxc5#
- 1...Rxb7
- 2.Qxc5#
- 1...Sxd1
- 2.Qxd3#
- 1...gxh4
- 2.Qf4#
- 1...Rb3
- Tries
- 1.Kc7?
- 1...Sxd1
- 2.Qxd3#
- 1...gxh4
- 2.Rf4#
- 2.Qf4#
- 1...Rb3
- 2.Rxc5#
- 2.Qxc5#
- 1...Rb4
- 2.Rxc5#
- 2.Qxc5#
- 1...Rb6
- 2.Rxc5#
- 2.Qxc5#
- 1...Rxb7+!
- 1...Sxd1
- 1.Kb8?
- 1...Sxd1
- 2.Qxd3#
- 1...gxh4
- 2.Rf4#
- 2.Qf4#
- 1...Rb3
- 2.Rxc5#
- 2.Qxc5#
- 1...Rb4
- 2.Rxc5#
- 2.Qxc5#
- 1...Rb6
- 2.Rxc5#
- 2.Qxc5#
- 1...Rxb7+!
- 1...Sxd1
- 1.Sxb2+?
- 1...Rxb2
- 2.Qxc5#
- 2.Qxd3#
- 1...Kc3!
- 1...Rxb2
- 1.Qe5?
- threat
- 2.Se3#
- 2.Qc3#
- 2.Qe4#
- 1...Rxb7
- 2.Qxc5#
- 1...Rb3
- 2.Qxc5#
- 1...Rb4
- 2.Qxc5#
- 1...Rb6
- 2.Qxc5#
- 1...Sxd1!
- threat
- 1.Qxc6?
- threat
- 2.Qe4#
- 2.Qd5#
- 1...Kd4
- 2.Qd5#
- 1...Rxb7
- 2.Qxc5#
- 1...Rb3
- 2.Qxc5#
- 1...Rb4
- 2.Qxc5#
- 1...Rb6
- 2.Qxc5#
- 1...Sxd1!
- threat
- 1.b8Q?
- 1...Sxd1
- 2.Qxd3#
- 1...gxh4
- 2.Qf4#
- 1...Rb6
- 2.Qxc5#
- 1...Rb7
- 2.Qxc5#
- 1...Rb3
- 2.Qxc5#
- 1...Rb4
- 2.Qxc5#
- 1...Rxb8+!
- 1...Sxd1
- 1.b8S?
- 1...Sxd1
- 2.Qxd3#
- 1...gxh4
- 2.Qf4#
- 1...Rb3
- 2.Qxc5#
- 1...Rb4
- 2.Qxc5#
- 1...Rb6
- 2.Qxc5#
- 1...Rb7
- 2.Qxc5#
- 1...Rxb8+!
- 1...Sxd1
- 1.b8B?
- 1...Sxd1
- 2.Qxd3#
- 1...gxh4
- 2.Qf4#
- 1...Rb3
- 2.Qxc5#
- 1...Rb4
- 2.Qxc5#
- 1...Rb6
- 2.Qxc5#
- 1...Rb7
- 2.Qxc5#
- 1...Rxb8+!
- 1...Sxd1
- 1.b8R?
- 1...Sxd1
- 2.Qxd3#
- 1...gxh4
- 2.Qf4#
- 1...Rb6
- 2.Qxc5#
- 1...Rb7
- 2.Qxc5#
- 1...Rb3
- 2.Qxc5#
- 1...Rb4
- 2.Qxc5#
- 1...Rxb8+!
- 1...Sxd1
- 1.Kc7?
- Keys
- 1.Kd8!
- 1...Rxb7
- 2.Rxc5#
- 1...Sxd1
- 2.Qxd3#
- 1...gxh4
- 2.Rf4#
- 1...Rb3
- 2.Rxc5#
- 1...Rb4
- 2.Rxc5#
- 1...Rb6
- 2.Rxc5#
- 1...Rxb7
- 1.Kd8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(h);N_GUARD::QAR1(G),XP(i)
- R(h);N_GUARD,XP(H)::QAR1(G),XP(i)
- S(a);N_GUARD,XS(A)::QAB1(G),XR(c)
- P(j);N_GUARD,N_SPINB(f),XR(E)::QAR(G)
- Tries
- Try
- K(I);N_SPINR(F),P-FLIGHT
- Vars
- S(a);N_GUARD,XS(A)::QAB1(G),XR(c)
- Refutation
- R(h);CHECK,XP(H)
- Try
- K(I);N_SPINR(F),P-FLIGHT,P_SPINP(H)
- Vars
- S(a);N_GUARD,XS(A)::QAB1(G),XR(c)
- Refutation
- R(h);CHECK,XP(H)
- Try
- S(A);CHECK,XS(a)
- Refutation
- K(e);N_SPINB(f),N_SPINR(c),P-FLIGHT
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- R(h);N_GUARD,XP(H)::QAR1(G),XP(i)
- R(h);N_GUARD::QAR1(G),XP(i)
- Refutation
- S(a);XS(A)
- Try
- Q(G);P_PINP(i),XP(l)
- Threat
- DUALS(2)
- Vars
- K(e);N_SPINP(i),N_SPINR(c),P-FLIGHT::QAR1(G)
- R(h);N_GUARD,XP(H)::QAR1(G),XP(i)
- R(h);N_GUARD::QAR1(G),XP(i)
- Refutation
- S(a);XS(A)
- Try
- P(H);
- Vars
- S(a);N_GUARD,XS(A)::QAB1(G),XR(c)
- P(j);N_GUARD,N_SPINB(f),XR(E)::QAR(G)
- R(h);N_GUARD::QAR1(G),XP(i)
- Refutation
- R(h);CHECK,XQ(H)
- Try
- P(H);
- Vars
- S(a);N_GUARD,XS(A)::QAB1(G),XR(c)
- P(j);N_GUARD,N_SPINB(f),XR(E)::QAR(G)
- R(h);N_GUARD::QAR1(G),XP(i)
- Refutation
- R(h);CHECK,XS(H)
- Try
- P(H);
- Vars
- S(a);N_GUARD,XS(A)::QAB1(G),XR(c)
- P(j);N_GUARD,N_SPINB(f),XR(E)::QAR(G)
- R(h);N_GUARD::QAR1(G),XP(i)
- Refutation
- R(h);CHECK,XB(H)
- Try
- P(H);
- Vars
- S(a);N_GUARD,XS(A)::QAB1(G),XR(c)
- P(j);N_GUARD,N_SPINB(f),XR(E)::QAR(G)
- R(h);N_GUARD::QAR1(G),XP(i)
- Refutation
- R(h);CHECK,XR(H)
- Try
- Actual
- K(I);N_SPINR(F),P-FLIGHT,P_SPINQ(G)
- Vars
- R(h);N_GUARD,XP(H)::R1(F),XP(i)
- S(a);N_GUARD,XS(A)::QAB1(G),XR(c)
- P(j);N_GUARD,N_SPINB(f),XR(E)::R(F)
- R(h);N_GUARD::R1(F),XP(i)
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).