MESON Chess Problem Database
Problem Display
PID: 12435 (q7/2Np1nB1/1p3P1n/7Q/1rBkpKpN/7R/5P2/2R5 w - - 0 1)
Fleck, Ferenc
2nd Place, Hungarian Chess Association, 1979
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Qd5
- 2.Qxd5#
- 1...Qa1
- 2.Qd5#
- 1...Qa2
- 2.Qd5#
- 1...Qa3
- 2.Qd5#
- 1...Qa4
- 2.Qd5#
- 1...Qa6
- 2.Qd5#
- 1...Qa7
- 2.Qd5#
- 1...Qb8
- 2.Qd5#
- 1...Qc8
- 2.Qd5#
- 1...Qd8
- 2.Qd5#
- 1...Qe8
- 2.Qd5#
- 1...Qf8
- 2.Qd5#
- 1...Qg8
- 2.Qd5#
- 1...Qh8
- 2.Qd5#
- 1...Ra4
- 2.Sb5#
- 1...Rxc4
- 2.Sb5#
- 2.Rd1#
- 1...Rb5
- 2.Sxb5#
- 1...Se5
- 2.Qxe5#
- 1...Sd6
- 2.Qe5#
- 2.f7#
- 1...Sd8
- 2.Qe5#
- 2.f7#
- 1...Sh8
- 2.Qe5#
- 2.f7#
- 1...e3
- 2.fxe3#
- 1...d5
- 2.Se6#
- 1...d6
- 2.Se6#
- 1...Qd5
- Tries
- 1.Bf1?
- threat
- 2.Rd1#
- 1...gxh3
- 2.Qd1#
- 1...Qd5
- 2.Qxd5#
- 1...Qa1
- 2.Qd5#
- 1...Qa3
- 2.Qd5#
- 1...Qa4
- 2.Qd5#
- 1...Qa6
- 2.Qd5#
- 1...Rb1
- 2.Rc4#
- 1...Rb2
- 2.Rc4#
- 1...Rb3
- 2.Rc4#
- 1...Sf5
- 2.Sxf5#
- 1...Se5
- 2.Qxe5#
- 1...Sg5
- 2.f7#
- 1...e3
- 2.fxe3#
- 1...g3
- 2.Qd1#
- 1...d5
- 2.Se6#
- 1...Qa2!
- threat
- 1.Bb5?
- threat
- 2.Rd1#
- 1...Rxb5
- 2.Sxb5#
- 1...gxh3
- 2.Qd1#
- 1...Qd5
- 2.Qxd5#
- 1...Qa1
- 2.Qd5#
- 1...Qa3
- 2.Qd5#
- 1...Qa4
- 2.Qd5#
- 1...Rb1
- 2.Rc4#
- 1...Rb2
- 2.Rc4#
- 1...Rb3
- 2.Rc4#
- 1...Sf5
- 2.Sxf5#
- 1...Se5
- 2.Qxe5#
- 1...Sg5
- 2.f7#
- 1...e3
- 2.fxe3#
- 1...g3
- 2.Qd1#
- 1...d5
- 2.Se6#
- 1...Qa2!
- threat
- 1.Bxf7?
- threat
- 2.Rd1#
- 2.Qe5#
- 1...Sxf7
- 2.Sf5#
- 1...gxh3
- 2.Qd1#
- 1...g3
- 2.Qd1#
- 1...Qa2
- 2.Qe5#
- 1...Qd5
- 2.Qxd5#
- 1...Qa1
- 2.Qd5#
- 2.Qe5#
- 1...Qa3
- 2.Qd5#
- 2.Qe5#
- 1...Qa4
- 2.Qd5#
- 2.Qe5#
- 1...Qa5
- 2.Rd1#
- 1...Qa6
- 2.Qd5#
- 2.Qe5#
- 1...Qe8
- 2.Rd1#
- 2.Qd5#
- 1...Rb1
- 2.Rc4#
- 2.Qe5#
- 1...Rb2
- 2.Rc4#
- 2.Qe5#
- 1...Rb3
- 2.Rc4#
- 2.Qe5#
- 1...Rb5
- 2.Sxb5#
- 2.Rd1#
- 2.Rc4#
- 1...Sf5
- 2.Sxf5#
- 1...d5
- 2.Se6#
- 2.Qe5#
- 1...d6
- 2.Se6#
- 2.Rd1#
- 1...e3!
- threat
- 1.Bf1?
- Keys
- 1.Ba6!
- threat
- 2.Rd1#
- 1...Qxa6
- 2.Qd5#
- 1...gxh3
- 2.Qd1#
- 1...Qd5
- 2.Qxd5#
- 1...Rb1
- 2.Rc4#
- 1...Rb2
- 2.Rc4#
- 1...Rb3
- 2.Rc4#
- 1...Rb5
- 2.Sxb5#
- 1...Sf5
- 2.Sxf5#
- 1...Se5
- 2.Qxe5#
- 1...Sg5
- 2.f7#
- 1...e3
- 2.fxe3#
- 1...g3
- 2.Qd1#
- 1...b5
- 2.Qc5#
- 1...d5
- 2.Se6#
- threat
- 1.Ba6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 14
- Sets
- Q(i);N_GUARD::QAR1(G),XQ(i)
- Q(i);N_GUARD::QAR1(G)
- Q(i);N_GUARD,P_PINS(I)::QAR1(G)
- R(a);N_GUARD::S(I)
- R(a);N_GUARD::S(I),XR(a)
- S(h);N_GUARD::QAB1(G),XS(h)
- P(c);OGATE::P(B),XP(c)
- P(g);N_GUARD::S(I)
- Tries
- Try
- B(D);
- Threat
- R(A)
- Vars
- P(d);OGATE,XR(C)::QAR(G)
- Q(i);N_GUARD::QAR1(G),XQ(i)
- Q(i);N_GUARD::QAR1(G)
- R(a);N_GUARD::R1(A)
- S(f);N_GUARD::S(F),XS(f)
- S(h);N_GUARD::QAB1(G),XS(h)
- S(h);OGATE::B(J)+P(H)
- P(c);OGATE::P(B),XP(c)
- P(d);OGATE::QAR(G)
- P(g);N_GUARD::S(I)
- Refutation
- Q(i);
- Try
- B(D);
- Threat
- R(A)
- Vars
- R(a);XB(D)::S(I),XR(a)
- P(d);OGATE,XR(C)::QAR(G)
- Q(i);N_GUARD::QAR1(G),XQ(i)
- Q(i);N_GUARD::QAR1(G)
- R(a);N_GUARD::R1(A)
- S(f);N_GUARD::S(F),XS(f)
- S(h);N_GUARD::QAB1(G),XS(h)
- S(h);OGATE::B(J)+P(H)
- P(c);OGATE::P(B),XP(c)
- P(d);OGATE::QAR(G)
- P(g);N_GUARD::S(I)
- Refutation
- Q(i);
- Try
- B(D);XS(h)
- Threat
- DUALS(2)
- Vars
- S(f);N_GUARD,XB(D)::S(F)
- P(d);OGATE,XR(C)::QAR(G)
- P(d);OGATE::QAR(G)
- Q(i);::QAB1(G)
- Q(i);N_GUARD::QAR1(G),XQ(i)
- Q(i);::R(A)
- S(f);N_GUARD::S(F),XS(f)
- Refutation
- P(c);
- Try
- Actual
- B(D);
- Threat
- R(A)
- Vars
- Q(i);N_GUARD,XB(D)::QAR1(G)
- P(d);OGATE,XR(C)::QAR(G)
- Q(i);N_GUARD::QAR1(G),XQ(i)
- R(a);N_GUARD::R1(A)
- R(a);N_GUARD::S(I),XR(a)
- S(f);N_GUARD::S(F),XS(f)
- S(h);N_GUARD::QAB1(G),XS(h)
- S(h);OGATE::B(J)+P(H)
- P(c);OGATE::P(B),XP(c)
- P(d);OGATE::QAR(G)
- P(e);N_GUARD::QAB1(G)
- P(g);N_GUARD::S(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).