MESON Chess Problem Database
Problem Display
PID: 103996 (6K1/3p4/2pP1QBB/2P3nP/1N1PPN1b/p3kppR/R5PP/8 w - - 0 1)
Jancek, Jan
3rd HM., Prace, 1953
#2
15 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sxh3
- 2.Sfd5#
- 1...Sxe4
- 2.Sfd5#
- 1...Se6
- 2.Sfd5#
- 1...Sf7
- 2.Sfd5#
- 1...Sh7
- 2.Sfd5#
- 1...fxg2
- 2.Sxg2#
- 1...f2
- 2.Re2#
- 1...gxh2
- 2.Re2#
- 1...Sxh3
- Tries
- 1.Kg7?
- 1...Sxh3
- 2.Sfd5#
- 1...Sxe4
- 2.Sfd5#
- 1...fxg2
- 2.Sxg2#
- 1...gxh2
- 2.Re2#
- 1...Sf7
- 2.Sfd5#
- 1...Sh7
- 2.Sfd5#
- 1...f2
- 2.Re2#
- 1...Se6+!
- 1...Sxh3
- 1.Kh8?
- 1...Sxh3
- 2.Sfd5#
- 1...Sxe4
- 2.Sfd5#
- 1...fxg2
- 2.Sxg2#
- 1...gxh2
- 2.Re2#
- 1...Se6
- 2.Sfd5#
- 1...Sh7
- 2.Sfd5#
- 1...f2
- 2.Re2#
- 1...Sf7+!
- 1...Sxh3
- 1.Se6?
- threat
- 2.Qxf3#
- 2.Qf4#
- 1...fxg2
- 2.Qf2#
- 2.Qf4#
- 1...f2
- 2.Qxf2#
- 2.Qf3#
- 2.Qf4#
- 1...dxe6!
- threat
- 1.Bh7?
- 1...Sxh3
- 2.Sfd5#
- 1...Sxe4
- 2.Sfd5#
- 1...fxg2
- 2.Sxg2#
- 1...gxh2
- 2.Re2#
- 1...Se6
- 2.Sfd5#
- 1...Sf7
- 2.Sfd5#
- 1...f2
- 2.Re2#
- 1...Sxh7!
- 1...Sxh3
- 1.Rc2?
- 1...Sxh3
- 2.Sfd5#
- 1...Sxe4
- 2.Sfd5#
- 1...fxg2
- 2.Sxg2#
- 1...gxh2
- 2.Re2#
- 1...Se6
- 2.Sfd5#
- 1...Sf7
- 2.Sfd5#
- 1...Sh7
- 2.Sfd5#
- 1...f2
- 2.Re2#
- 1...a2!
- 1...Sxh3
- 1.Rxh4?
- 1...Sxe4
- 2.Sfd5#
- 1...fxg2
- 2.Sxg2#
- 1...Sh3
- 2.Sxh3#
- 2.Sfd5#
- 1...Se6
- 2.Sfd5#
- 2.Sxe6#
- 1...Sf7
- 2.Sfd5#
- 1...Sh7
- 2.Sfd5#
- 1...f2
- 2.Re2#
- 1...gxh2!
- 1...Sxe4
- 1.Qe5?
- 1...Sxh3
- 2.Sfd5#
- 1...Sxe4
- 2.Sfd5#
- 2.Qxe4#
- 1...gxh2
- 2.Re2#
- 1...Se6
- 2.Sfd5#
- 1...Sf7
- 2.Sfd5#
- 1...Sh7
- 2.Sfd5#
- 1...f2
- 2.Re2#
- 1...fxg2!
- 1...Sxh3
- 1.gxf3?
- threat
- 2.Sg2#
- 1...g2
- 2.Sxg2#
- 2.Re2#
- 1...Kxf3!
- threat
- 1.hxg3?
- 1...Sxh3
- 2.Sfd5#
- 1...Sxe4
- 2.Sfd5#
- 1...fxg2
- 2.Sxg2#
- 1...Se6
- 2.Sfd5#
- 1...Sf7
- 2.Sfd5#
- 1...Sh7
- 2.Sfd5#
- 1...f2
- 2.Re2#
- 1...Bxg3!
- 1...Sxh3
- 1.d5?
- 1...Sxh3
- 2.Qc3#
- 1...fxg2
- 2.Sxg2#
- 1...gxh2
- 2.Re2#
- 1...cxd5
- 2.Sbxd5#
- 2.Sfxd5#
- 1...Se6
- 2.Qc3#
- 1...Sf7
- 2.Qc3#
- 1...Sh7
- 2.Qc3#
- 1...f2
- 2.Re2#
- 1...Sxe4!
- 1...Sxh3
- 1.Kg7?
- Keys
- 1.Sfd3!
- 1...fxg2
- 2.Qf2#
- 1...gxh2
- 2.Rxf3#
- 1...f2
- 2.Qxf2#
- 1...fxg2
- 1.Sfd3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- S(f);XR(D)::B(N)+S(H),DCHECK
- S(f);XP(G)::B(N)+S(H),DCHECK
- S(f);::B(N)+S(H),DCHECK
- P(c);P_SPINP(d),XP(B)::S(H),XP(c)
- P(c);N_GUARD,P_SPINP(d)::R1(A)
- P(d);P_SPINP(c),XP(C)::R1(A)
- Tries
- Try
- K(O);P-FLIGHT
- Vars
- S(f);XR(D)::B(N)+S(H),DCHECK
- S(f);XP(G)::B(N)+S(H),DCHECK
- P(c);P_SPINP(d),XP(B)::S(H),XP(c)
- P(d);P_SPINP(c),XP(C)::R1(A)
- S(f);::B(N)+S(H),DCHECK
- P(c);N_GUARD,P_SPINP(d)::R1(A)
- Refutation
- S(f);CHECK
- Try
- K(O);P-FLIGHT
- Vars
- S(f);XR(D)::B(N)+S(H),DCHECK
- S(f);XP(G)::B(N)+S(H),DCHECK
- P(c);P_SPINP(d),XP(B)::S(H),XP(c)
- P(d);P_SPINP(c),XP(C)::R1(A)
- S(f);::B(N)+S(H),DCHECK
- P(c);N_GUARD,P_SPINP(d)::R1(A)
- Refutation
- S(f);CHECK
- Try
- S(H);P_PINS(f)
- Threat
- DUALS(2)
- Refutation
- P(h);XS(H)
- Try
- B(M);
- Vars
- S(f);XR(D)::B(N)+S(H),DCHECK
- S(f);XP(G)::B(N)+S(H),DCHECK
- P(c);P_SPINP(d),XP(B)::S(H),XP(c)
- P(d);P_SPINP(c),XP(C)::R1(A)
- S(f);::B(N)+S(H),DCHECK
- P(c);N_GUARD,P_SPINP(d)::R1(A)
- Refutation
- S(f);XB(M)
- Try
- R(A);
- Vars
- S(f);XR(D)::B(N)+S(H),DCHECK
- S(f);XP(G)::B(N)+S(H),DCHECK
- P(c);P_SPINP(d),XP(B)::S(H),XP(c)
- P(d);P_SPINP(c),XP(C)::R1(A)
- S(f);::B(N)+S(H),DCHECK
- P(c);N_GUARD,P_SPINP(d)::R1(A)
- Refutation
- P(a);
- Try
- R(D);XB(e)
- Vars
- S(f);XP(G)::B(N)+S(H),DCHECK
- P(c);XP(B)::S(H),XP(c)
- S(f);::B(N)+S(H),DCHECK
- P(c);N_GUARD::R1(A)
- Refutation
- P(d);XP(C)
- Try
- Q(L);
- Vars
- S(f);XR(D)::B(N)+S(H),DCHECK
- P(d);P_SPINP(c),XP(C)::R1(A)
- S(f);::B(N)+S(H),DCHECK
- P(c);N_GUARD,P_SPINP(d)::R1(A)
- Refutation
- P(c);P_SPINP(d),XP(B)
- Try
- P(B);XP(c)
- Threat
- S(H)
- Refutation
- K(b);P-FLIGHT,P_SPINP(d),XP(B)
- Try
- P(C);XP(d)
- Vars
- S(f);XR(D)::B(N)+S(H),DCHECK
- S(f);XP(G)::B(N)+S(H),DCHECK
- P(c);XP(B)::S(H),XP(c)
- S(f);::B(N)+S(H),DCHECK
- P(c);N_GUARD::R1(A)
- Refutation
- B(e);XP(C)
- Try
- P(F);
- Vars
- S(f);XR(D)::QAR2(L)
- P(c);P_SPINP(d),XP(B)::S(H),XP(c)
- P(d);P_SPINP(c),XP(C)::R1(A)
- S(f);::QAR2(L)
- P(c);N_GUARD,P_SPINP(d)::R1(A)
- Refutation
- S(f);XP(G)
- Try
- Actual
- S(H);P_PINS(f)
- Vars
- P(c);OGATE,P_SPINP(d),XP(B)::QAB1(L)
- P(d);OGATE,P_SPINP(c),XP(C)::R1(D),XP(c)
- P(c);OGATE,P_SPINP(d)::QAB1(L),XP(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).