MESON Chess Problem Database
Problem Display
PID: 6748 (4R3/2p3B1/2N4K/Q2n1kpp/R6q/b3Pn1P/B7/3r3N w - - 0 1)
Fleck, Ferenc
2nd Place, Grantham Journal, 1933
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Qg3
- 2.Sxg3#
- 1...Qxa4
- 2.Sg3#
- 1...Qb4
- 2.Sg3#
- 1...Qc4
- 2.Sg3#
- 1...Qd4
- 2.Sg3#
- 1...Qe4
- 2.Sg3#
- 1...Se1
- 2.Re5#
- 1...Sg1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 2.Qxd5#
- 1...Sh2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 2.Qxd5#
- 1...Se5
- 2.Rxe5#
- 1...g4
- 2.Rf4#
- 1...Qg3
- Tries
- 1.Sd4+?
- 1...Qxd4
- 2.Sg3#
- 1...Sxd4
- 2.Re5#
- 2.Qxd5#
- 1...Rxd4!
- 1...Qxd4
- 1.Bxd5?
- threat
- 2.Be4#
- 2.Be6#
- 1...Qxh3
- 2.Be6#
- 1...Qxa4
- 2.Sg3#
- 2.Be4#
- 1...Qb4
- 2.Sg3#
- 2.Be4#
- 1...Qc4
- 2.Sg3#
- 2.Be4#
- 1...Qd4
- 2.Sg3#
- 2.Be4#
- 1...Qe4
- 2.Sg3#
- 2.Bxe4#
- 2.Be6#
- 1...Rd4
- 2.Be4#
- 1...Bb4
- 2.Be4#
- 1...Bc5
- 2.Be6#
- 1...Be7
- 2.Sxe7#
- 1...Sd4
- 2.Be4#
- 2.Re5#
- 1...Se5
- 2.Be6#
- 2.Rxe5#
- 1...Rxd5!
- threat
- 1.Rf4+?
- 1...gxf4
- 2.e4#
- 1...Qxf4!
- 1...gxf4
- 1.Qxc7?
- threat
- 2.Qd7#
- 2.Qc8#
- 1...Sxe3
- 2.Be6#
- 2.Qf7#
- 1...Qe4
- 2.Sg3#
- 1...Sd4
- 2.Re5#
- 2.Qe5#
- 1...Se5
- 2.Rxe5#
- 2.Qxe5#
- 1...Sc3
- 2.Be6#
- 2.Qf7#
- 1...Sb4
- 2.Qf7#
- 1...Sf4
- 2.Qf7#
- 2.e4#
- 1...Sb6
- 2.Be6#
- 2.Qf7#
- 1...Sf6
- 2.Be6#
- 1...Se7
- 2.Rf8#
- 1...Sxc7!
- threat
- 1.Qxd5+?
- 1...Se5
- 2.Rxe5#
- 2.Qe6#
- 2.Qxe5#
- 1...Rxd5!
- 1...Se5
- 1.Qa6?
- threat
- 2.Qc8#
- 1...Sxe3
- 2.Be6#
- 1...Qe4
- 2.Sg3#
- 1...Sd4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sc3
- 2.Be6#
- 1...Sf4
- 2.e4#
- 1...Sb6
- 2.Be6#
- 1...Sf6
- 2.Be6#
- 1...Se7
- 2.Rf8#
- 1...Sb4!
- threat
- 1.Sd4+?
- Keys
- 1.Qa8!
- threat
- 2.Qc8#
- 1...Sxe3
- 2.Be6#
- 1...Qe4
- 2.Sg3#
- 1...Sd4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sc3
- 2.Be6#
- 1...Sb4
- 2.Se7#
- 1...Sf4
- 2.e4#
- 1...Sb6
- 2.Be6#
- 1...Sf6
- 2.Be6#
- 1...Se7
- 2.Rf8#
- threat
- 1.Qa8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 9
- Sets
- Q(d);N_GUARD::S(A),XQ(d)
- Q(d);N_GUARD,XR(E)::S(A)
- Q(d);N_GUARD::S(A)
- S(c);N_GUARD::R1(J)
- S(c);N_GUARD,N_SPINS(e)::R1(J),XS(c)
- P(g);N_GUARD,S_CUTQ(d)::R1(E)
- Tries
- Try
- S(G);CHECK
- Vars
- Q(d);XS(G)::S(A)
- Refutation
- R(a);XS(G)
- Try
- B(B);XS(e)
- Threat
- DUALS(2)
- Vars
- Q(d);XP(D)::QAR(F)+B(B),DCHECK
- R(a);::QAR(F)+B(B),DCHECK
- B(b);::QAR(F)+B(B),DCHECK
- B(b);::B(B)
- B(b);N_GUARD::S(G),XB(b)
- Refutation
- R(a);P_SPINR(a),XB(B)
- Try
- R(E);CHECK
- Vars
- P(g);SBLOCK,XR(E)::P(C)
- Refutation
- Q(d);XR(E)
- Try
- Q(F);N_PINS(e),XP(i)
- Threat
- DUALS(2)
- Vars
- Q(d);N_GUARD::S(A)
- S(e);N_GUARD::QAR2(F)
- S(e);OGATE::B(B)
- S(e);N_GUARD,S_CUTB(b)::R(J)
- Refutation
- S(e);XQ(F)
- Try
- Q(F);CHECK,XS(e)
- Refutation
- R(a);XQ(F)
- Try
- Q(F);N_PINS(e)
- Threat
- QAB(F)
- Vars
- S(e);OGATE,XP(C)::B(B)
- Q(d);N_GUARD::S(A)
- S(c);N_GUARD::R1(J)
- S(c);N_GUARD::R1(J),XS(c)
- S(e);OGATE::B(B)
- S(e);SBLOCK,S_CUTQ(d)::P(C)
- S(e);N_GUARD,S_CUTB(b)::R(J)
- Refutation
- S(e);
- Try
- Actual
- Q(F);N_PINS(e)
- Threat
- QAB(F)
- Vars
- S(e);OGATE,XP(C)::B(B)
- Q(d);N_GUARD::S(A)
- S(c);N_GUARD::R1(J)
- S(c);N_GUARD::R1(J),XS(c)
- S(e);OGATE::B(B)
- S(e);N_GUARD,S_CUTB(b)::S(G)
- S(e);SBLOCK,S_CUTQ(d)::P(C)
- S(e);N_GUARD,S_CUTB(b)::R(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).