MESON Chess Problem Database
Problem Display
PID: 108069 (1K4B1/1QP1B3/p4P1N/4k3/R3Pp2/2r5/bNpR4/3q4 w - - 0 1)
Fleck, Ferenc
Voros Meteor, 1953
#2
11 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qg4
- 2.Sxg4#
- 1...Qa1
- 2.Sg4#
- 1...Qb1
- 2.Sg4#
- 1...Qc1
- 2.Sg4#
- 1...Qe1
- 2.Sg4#
- 1...Qf1
- 2.Sg4#
- 1...Qh1
- 2.Sg4#
- 1...Qxd2
- 2.Sg4#
- 1...Rb3
- 2.Sc4#
- 1...Rd3
- 2.Sxd3#
- 1...Rf3
- 2.Sg4#
- 1...Rc4
- 2.Qd5#
- 1...Rc5
- 2.Sd3#
- 1...Rc6
- 2.Sd3#
- 1...Rxc7
- 2.Sd3#
- 2.Qxc7#
- 1...Bb1
- 2.Qd5#
- 1...Bd5
- 2.Qxd5#
- 1...Qg4
- Tries
- 1.Sc4+?
- 1...Rxc4
- 2.Qd5#
- 1...Bxc4!
- 1...Rxc4
- 1.Sf7+?
- 1...Ke6
- 2.Qc8#
- 1...Bxf7!
- 1...Ke6
- 1.Rd5+?
- 1...Qxd5
- 2.Sg4#
- 1...Bxd5!
- 1...Qxd5
- 1.Ra5+?
- 1...Bd5
- 2.Qxd5#
- 1...Rc5!
- 1...Bd5
- 1.Qb5+?
- 1...Rc5
- 2.Sd3#
- 1...Bd5
- 2.Qxd5#
- 1...axb5!
- 1...Rc5
- 1.c8Q?
- threat
- 2.Qf5#
- 2.Qxc3#
- 1...Qxd2
- 2.Sg4#
- 2.Qf5#
- 1...Bxg8
- 2.Qf5#
- 1...f3
- 2.Qf5#
- 1...c1Q
- 2.Qf5#
- 1...c1R
- 2.Qf5#
- 1...Qh5
- 2.Qxc3#
- 1...Qf3
- 2.Qf5#
- 1...Qg4
- 2.Sxg4#
- 2.Qxc3#
- 1...Qg1
- 2.Qf5#
- 1...Ra3
- 2.Qf5#
- 2.Qbc7#
- 2.Qcc7#
- 1...Rb3
- 2.Sc4#
- 2.Sf7#
- 2.Qf5#
- 2.Qe6#
- 2.Qc5#
- 2.Qc7#
- 1...Rd3
- 2.Sxd3#
- 2.Qf5#
- 1...Re3
- 2.Qf5#
- 2.Qbc7#
- 2.Qcc7#
- 1...Rf3
- 2.Sg4#
- 2.Qf5#
- 2.Qbc7#
- 2.Qcc7#
- 1...Rg3
- 2.Qf5#
- 2.Qbc7#
- 2.Qcc7#
- 1...Rh3
- 2.Qf5#
- 2.Qbc7#
- 2.Qcc7#
- 1...Rc4
- 2.Sf7#
- 2.Qd5#
- 2.Qf5#
- 2.Qe6#
- 1...Rc5
- 2.Sd3#
- 2.Qf5#
- 1...Rc6
- 2.Sd3#
- 2.Qf5#
- 1...Rc7
- 2.Sd3#
- 2.Qf5#
- 2.Qbxc7#
- 2.Qcxc7#
- 1...Bc4
- 2.Qf5#
- 2.Qcc7#
- 1...Be6
- 2.Qxe6#
- 2.Qxc3#
- 1...Bf7
- 2.Sxf7#
- 2.Qf5#
- 1...Rxc8+!
- threat
- 1.Sc4+?
- Keys
- 1.Qb6!
- threat
- 2.Qd4#
- 2.Qd6#
- 1...Qxd2
- 2.Sg4#
- 1...Bxg8
- 2.Qd6#
- 1...Rc4
- 2.Qe6#
- 1...Bc4
- 2.Qd4#
- 1...f3
- 2.Qd6#
- 1...Qg1
- 2.Qd6#
- 1...Rb3
- 2.Sf7#
- 1...Rd3
- 2.Sxd3#
- 1...Rc5
- 2.Sd3#
- 2.Qd6#
- 1...Rc6
- 2.Sd3#
- 2.Qd4#
- 1...Bf7
- 2.Sxf7#
- 2.Qd6#
- threat
- 1.Qb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 4
- REMOVED MATES = 12
- Sets
- Q(a);N_GUARD::S(F),XQ(a)
- Q(a);N_GUARD::S(F)
- Q(a);N_GUARD,XR(B)::S(F)
- R(d);N_GUARD,P_PINQ(G),S_CUTB(b)::S(A)
- R(d);N_GUARD::S(A),XR(d)
- R(d);S_CUTQ(a)::S(F)
- R(d);S_CUTB(b)::QAR1(G)
- R(d);N_GUARD::S(A)
- B(b);N_GUARD::QAR1(G)
- B(b);N_GUARD::QAR1(G),XB(b)
- Tries
- Try
- S(A);CHECK
- Vars
- R(d);XS(A)::QAR1(G)
- Refutation
- B(b);XS(A)
- Try
- S(F);CHECK
- Vars
- K(f);P-FLIGHT::QAB(G)
- Refutation
- B(b);XS(F)
- Try
- R(B);CHECK
- Vars
- Q(a);XR(B)::S(F)
- Refutation
- B(b);XR(B)
- Try
- R(C);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAR1(G),XB(b)
- Refutation
- R(d);P_SPINR(d)
- Try
- Q(G);CHECK
- Vars
- R(d);P_SPINR(d)::S(A)
- B(b);N_GUARD,P_SPINB(b)::QAR1(G),XB(b)
- Refutation
- P(g);XQ(G)
- Try
- P(H);
- Threat
- DUALS(2)
- Vars
- B(b);XB(K)::QAR1(H)
- P(e);::QAR1(H)
- P(c);::QAR1(H)
- Q(a);::QAB(H),XR(d)
- Q(a);::QAR1(H)
- Refutation
- R(d);CHECK,XQ(H)
- Try
- Actual
- Q(G);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,XR(B)::S(F)
- B(b);XB(K)::QAB1(G)
- R(d);S_CUTB(b)::QAR1(G)
- B(b);::QAB1(G)
- P(e);::QAB1(G)
- Q(a);::QAB1(G)
- R(d);P_PINQ(G),S_CUTB(b)::S(F)
- R(d);N_GUARD::S(A),XR(d)
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).