MESON Chess Problem Database
Problem Display
PID: 100006 (7K/p2n1NPP/B1p4N/2P2p1r/1p1Q4/1Rb2k1p/4RBbp/5nqr w - - 0 1)
Katko, Imre
Magyar Sakkvilag, 1925
#2
11 + 14
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxf2
- 2.Qxf2#
- 1...Rh4
- 2.Sg5#
- 1...Rg5
- 2.Sxg5#
- 1...Rxh6
- 2.Sg5#
- 1...Sd2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sg3
- 2.Qe3#
- 1...Sxc5
- 2.Se5#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sb8
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...f4
- 2.Qe4#
- 1...Qxf2
- Tries
- 1.Kg8?
- 1...Qxf2
- 2.Qxf2#
- 1...Rxh6
- 2.Sg5#
- 1...Sxc5
- 2.Se5#
- 1...Rh4
- 2.Sg5#
- 1...Rg5
- 2.Sxg5#
- 1...Sd2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sg3
- 2.Qe3#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 1...Sb8
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...f4
- 2.Qe4#
- 1...Sf6+!
- 1...Qxf2
- 1.Re1?
- threat
- 2.Be2#
- 1...Se3
- 2.Qxe3#
- 1...Sg3
- 2.Qe3#
- 1...Qxf2!
- threat
- 1.Ra2?
- threat
- 2.Be2#
- 1...Sd2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sg3
- 2.Qe3#
- 1...Qxf2!
- threat
- 1.Reb2?
- threat
- 2.Be2#
- 1...Sd2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sg3
- 2.Qe3#
- 1...Qxf2!
- threat
- 1.Rc2?
- threat
- 2.Be2#
- 1...Sd2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sg3
- 2.Qe3#
- 1...Qxf2!
- threat
- 1.Rd2?
- threat
- 2.Be2#
- 1...Sxd2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sg3
- 2.Qe3#
- 1...Qxf2!
- threat
- 1.Re3+?
- 1...Sxe3
- 2.Qxe3#
- 1...Kxf2!
- 1...Sxe3
- 1.Re5?
- threat
- 2.Be2#
- 1...Sxe5
- 2.Sxe5#
- 1...Se3
- 2.Qxe3#
- 1...Sg3
- 2.Qe3#
- 1...Qxf2!
- threat
- 1.Re6?
- threat
- 2.Be2#
- 1...Se3
- 2.Qxe3#
- 1...Sg3
- 2.Qe3#
- 1...Se5
- 2.Sxe5#
- 1...Qxf2!
- threat
- 1.Re7?
- threat
- 2.Be2#
- 1...Se3
- 2.Qxe3#
- 1...Sg3
- 2.Qe3#
- 1...Se5
- 2.Sxe5#
- 1...Qxf2!
- threat
- 1.Re8?
- threat
- 2.Be2#
- 1...Se3
- 2.Qxe3#
- 1...Sg3
- 2.Qe3#
- 1...Se5
- 2.Sxe5#
- 1...Qxf2!
- threat
- 1.Rxc3+?
- 1...Se3
- 2.Rcxe3#
- 2.Qxe3#
- 1...bxc3!
- 1...Se3
- 1.Qd3+?
- 1...Se3
- 2.Qxe3#
- 1...Kf4!
- 1...Se3
- 1.Qh4?
- 1...Qxf2
- 2.Qxf2#
- 1...Rxh6
- 2.Sg5#
- 1...Sxc5
- 2.Se5#
- 1...Sd2
- 2.Re3#
- 2.Qg3#
- 1...Rg5
- 2.Sxg5#
- 1...Se3
- 2.Rxe3#
- 1...Sg3
- 2.Qxg3#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sb8
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...f4
- 2.Qg4#
- 2.Qxh5#
- 1...Rxh4!
- 1...Qxf2
- 1.g8R?
- 1...Qxf2
- 2.Rxf2#
- 1...Rxh6
- 2.Sg5#
- 1...Sxc5
- 2.Se5#
- 1...Sd2
- 2.Rg3#
- 1...Rh4
- 2.Sg5#
- 1...Rg5
- 2.Sxg5#
- 1...Se3
- 2.Rg3#
- 1...Sg3
- 2.Rxg3#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sb8
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...f4!
- 1...Qxf2
- 1.Kg8?
- Keys
- 1.g8Q!
- 1...Qxf2
- 2.Rxf2#
- 1...Rxh6
- 2.Sg5#
- 1...Sxc5
- 2.Se5#
- 1...Sd2
- 2.Qg3#
- 1...Rh4
- 2.Sg5#
- 1...Rg5
- 2.Sxg5#
- 1...Se3
- 2.Qg3#
- 1...Sg3
- 2.Qxg3#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sb8
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...f4
- 2.Qg4#
- 1...Qxf2
- 1.g8Q!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- Q(b);OGATE,XB(B)::QAR1(D),XQ(b)
- R(k);N_GUARD::S(H)
- R(k);N_GUARD::S(H),XR(k)
- R(k);N_GUARD,P_PINP(J),XS(G)::S(H)
- S(a);N_GUARD::QAR1(D)
- S(a);N_GUARD,N_SPINB(f)::QAR1(D),XS(a)
- S(n);N_GUARD,XP(E)::S(H)
- S(n);N_GUARD::S(H),XS(n)
- S(n);N_GUARD::S(H)
- P(j);N_GUARD::QAB1(D)
- Tries
- Try
- K(K);P-FLIGHT
- Vars
- Q(b);OGATE,XB(B)::QAR1(D),XQ(b)
- R(k);N_GUARD,XS(G)::S(H)
- S(n);N_GUARD,XP(E)::S(H)
- R(k);N_GUARD::S(H)
- R(k);N_GUARD,P_PINP(I)::S(H),XR(k)
- S(a);N_GUARD::QAR1(D)
- S(a);N_GUARD,N_SPINB(f)::QAR1(D),XS(a)
- S(n);N_GUARD::S(H),XS(n)
- S(n);N_GUARD::S(H)
- P(j);N_GUARD::QAB1(D)
- Refutation
- S(n);CHECK
- Try
- R(A);
- Threat
- B(F)
- Vars
- S(a);N_GUARD,N_SPINB(f)::QAR1(D),XS(a)
- S(a);N_GUARD::QAR1(D)
- Refutation
- Q(b);XB(B)
- Try
- R(A);
- Threat
- B(F)
- Vars
- S(a);N_GUARD::QAR1(D)
- S(a);N_GUARD,N_SPINB(f)::QAR1(D),XS(a)
- Refutation
- Q(b);XB(B)
- Try
- R(A);
- Threat
- B(F)
- Vars
- S(a);N_GUARD::QAR1(D)
- S(a);N_GUARD,N_SPINB(f)::QAR1(D),XS(a)
- Refutation
- Q(b);XB(B)
- Try
- R(A);
- Threat
- B(F)
- Vars
- S(a);N_GUARD::QAR1(D)
- S(a);N_GUARD,N_SPINB(f)::QAR1(D),XS(a)
- Refutation
- Q(b);XB(B)
- Try
- R(A);
- Threat
- B(F)
- Vars
- S(a);N_GUARD,XR(A)::QAR1(D)
- S(a);N_GUARD,N_SPINB(f)::QAR1(D),XS(a)
- S(a);N_GUARD::QAR1(D)
- Refutation
- Q(b);XB(B)
- Try
- R(A);CHECK,N_PINB(f)
- Vars
- S(a);OGATE,XR(A)::QAR1(D),XS(a)
- Refutation
- K(g);P-FLIGHT,XB(B)
- Try
- R(A);
- Threat
- B(F)
- Vars
- S(n);XR(A)::S(H),XS(n)
- S(a);N_GUARD,N_SPINB(f)::QAR1(D),XS(a)
- S(a);N_GUARD::QAR1(D)
- Refutation
- Q(b);XB(B)
- Try
- R(A);
- Threat
- B(F)
- Vars
- S(a);N_GUARD,N_SPINB(f)::QAR1(D),XS(a)
- S(a);N_GUARD::QAR1(D)
- S(n);N_GUARD::S(H),XS(n)
- Refutation
- Q(b);XB(B)
- Try
- R(A);
- Threat
- B(F)
- Vars
- S(a);N_GUARD,N_SPINB(f)::QAR1(D),XS(a)
- S(a);N_GUARD::QAR1(D)
- S(n);N_GUARD::S(H),XS(n)
- Refutation
- Q(b);XB(B)
- Try
- R(A);
- Threat
- B(F)
- Vars
- S(a);N_GUARD,N_SPINB(f)::QAR1(D),XS(a)
- S(a);N_GUARD::QAR1(D)
- S(n);N_GUARD::S(H),XS(n)
- Refutation
- Q(b);XB(B)
- Try
- R(C);CHECK,XB(f)
- Refutation
- P(i);XR(C)
- Try
- Q(D);CHECK,N_PINB(f),P_SPINP(I)
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAR1(D),XS(a)
- Refutation
- K(g);P-FLIGHT
- Try
- Q(D);P_SPINP(I)
- Vars
- Q(b);OGATE,XB(B)::QAR1(D),XQ(b)
- R(k);N_GUARD,XS(G)::S(H)
- S(n);N_GUARD,XP(E)::S(H)
- R(k);N_GUARD::S(H),XR(k)
- S(a);N_GUARD,N_SPINB(f)::R1(A),XS(a)
- S(a);N_GUARD::QAR1(D),XS(a)
- S(n);N_GUARD,N_PINP(I)::S(H),XS(n)
- S(n);N_GUARD::S(H)
- S(n);N_GUARD,N_PINP(I)::S(H)
- Refutation
- R(k);XQ(D)
- Try
- P(I);P_SPINQ(D)
- Vars
- Q(b);OGATE,XB(B)::R1(A),XQ(b)
- R(k);N_GUARD,P_PINP(J),XS(G)::S(H)
- S(n);N_GUARD,XP(E)::S(H)
- S(a);N_GUARD::R1(I)
- R(k);N_GUARD::S(H)
- R(k);N_GUARD::S(H),XR(k)
- S(a);N_GUARD,N_SPINB(f)::R1(I)
- S(a);N_GUARD::R1(I),XS(a)
- S(n);N_GUARD,N_PINQ(D)::S(H),XS(n)
- S(n);N_GUARD::S(H)
- S(n);N_GUARD,N_PINQ(D)::S(H)
- Refutation
- P(j);
- Try
- Actual
- P(I);P_SPINQ(D)
- Vars
- Q(b);OGATE,XB(B)::R1(A),XQ(b)
- R(k);N_GUARD,P_PINP(J),XS(G)::S(H)
- S(n);N_GUARD,XP(E)::S(H)
- S(a);N_GUARD::QAR1(I)
- R(k);N_GUARD::S(H)
- R(k);N_GUARD::S(H),XR(k)
- S(a);N_GUARD,N_SPINB(f)::QAR1(I)
- S(a);N_GUARD::QAR1(I),XS(a)
- S(n);N_GUARD,N_PINQ(D)::S(H),XS(n)
- S(n);N_GUARD::S(H)
- S(n);N_GUARD,N_PINQ(D)::S(H)
- P(j);N_GUARD::QAB1(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).