MESON Chess Problem Database
Problem Display
PID: 110545 (b3R3/4r3/Q2p3p/3kNB1K/1r1P1b2/5N2/2R4B/q7 w - - 0 1)
Barna, Laszlo
Behting MT, 1967-1968
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Qc4#
- 1...Rb2
- 2.Qc4#
- 1...Rb3
- 2.Qc4#
- 1...Ra4
- 2.Qb5#
- 1...Rc4
- 2.Qxc4#
- 1...Rxd4
- 2.Qb5#
- 1...Rb5
- 2.Qxb5#
- 1...Rb6
- 2.Qc4#
- 1...Rbb7
- 2.Qc4#
- 2.Qc6#
- 1...Rb8
- 2.Qc4#
- 1...Reb7
- 2.Qc6#
- 1...Bc6
- 2.Qxc6#
- 1...dxe5
- 2.Rc5#
- 1...Rb1
- Tries
- 1.Sd3?
- threat
- 2.Sxb4#
- 2.Sxf4#
- 1...Rxd4
- 2.Qb5#
- 1...Bxh2
- 2.Sxb4#
- 1...Qb2
- 2.Sxf4#
- 1...Qc3
- 2.Sxf4#
- 1...Qb1
- 2.Sxf4#
- 1...Qc1
- 2.Sxb4#
- 1...Qe1
- 2.Sxf4#
- 1...Qa3
- 2.Sxf4#
- 1...Qa4
- 2.Sxf4#
- 1...Qa5
- 2.Sxf4#
- 1...Rb1
- 2.Sxf4#
- 2.Qc4#
- 1...Rb2
- 2.Sxf4#
- 2.Qc4#
- 1...Rb3
- 2.Sxf4#
- 2.Qc4#
- 1...Ra4
- 2.Sxf4#
- 2.Qb5#
- 1...Rc4
- 2.Sxf4#
- 2.Qxc4#
- 1...Rb5
- 2.Sxf4#
- 2.Qxb5#
- 1...Rb6
- 2.Sxf4#
- 2.Qc4#
- 1...Rbb7
- 2.Sxf4#
- 2.Qc4#
- 2.Qc6#
- 1...Rb8
- 2.Sxf4#
- 2.Qc4#
- 1...Re4
- 2.Sxb4#
- 2.Bxe4#
- 1...Reb7
- 2.Sxf4#
- 2.Be4#
- 2.Qc6#
- 1...Bc1
- 2.Sxb4#
- 2.Qxd6#
- 1...Bd2
- 2.Qxd6#
- 1...Be3
- 2.Sxb4#
- 2.Qxd6#
- 1...Bg3
- 2.Sxb4#
- 1...Be5
- 2.Sxb4#
- 1...Bg5
- 2.Sxb4#
- 2.Qxd6#
- 1...Qxd4!
- threat
- 1.Sc6?
- threat
- 2.Sxb4#
- 2.Sxe7#
- 1...Qxd4
- 2.Sxe7#
- 1...Rxd4
- 2.Sxe7#
- 2.Qb5#
- 1...Rxe8
- 2.Sxb4#
- 1...Bxc6
- 2.Qxc6#
- 1...Qb2
- 2.Sxe7#
- 1...Qc3
- 2.Sxe7#
- 1...Qb1
- 2.Sxe7#
- 1...Qa3
- 2.Sxe7#
- 1...Qa4
- 2.Sxe7#
- 1...Qa5
- 2.Sxe7#
- 1...Rb1
- 2.Sxe7#
- 2.Qc4#
- 1...Rb2
- 2.Sxe7#
- 2.Qc4#
- 1...Rb3
- 2.Sxe7#
- 2.Qc4#
- 1...Ra4
- 2.Sxe7#
- 2.Qb5#
- 1...Rc4
- 2.Sxe7#
- 2.Qxc4#
- 1...Rb5
- 2.Sxe7#
- 2.Qxb5#
- 1...Rb6
- 2.Sxe7#
- 2.Qc4#
- 1...Rbb7
- 2.Qc4#
- 1...Rb8
- 2.Sxe7#
- 2.Qc4#
- 1...Re1
- 2.Sxb4#
- 1...Re2
- 2.Sxb4#
- 1...Re3
- 2.Sxb4#
- 1...Re4
- 2.Sxb4#
- 2.Bxe4#
- 1...Re5
- 2.Sxb4#
- 1...Re6
- 2.Sxb4#
- 1...Ra7
- 2.Sxb4#
- 2.Be4#
- 1...Reb7
- 2.Be4#
- 1...Rc7
- 2.Sxb4#
- 2.Be4#
- 1...Rd7
- 2.Sxb4#
- 2.Be4#
- 1...Rf7
- 2.Sxb4#
- 2.Be4#
- 1...Rg7
- 2.Sxb4#
- 2.Be4#
- 1...Rh7
- 2.Sxb4#
- 2.Be4#
- 1...Bd2
- 2.Sxe7#
- 1...Bg5
- 2.Sxb4#
- 1...Qe1!
- threat
- 1.Rd8?
- threat
- 2.Rc5#
- 2.Rxd6#
- 2.Qxd6#
- 1...Qxd4
- 2.Rxd6#
- 2.Qxd6#
- 1...Qxa6
- 2.Rc5#
- 1...Rxd4
- 2.Rxd6#
- 2.Qb5#
- 2.Qxd6#
- 1...Bxe5
- 2.Rc5#
- 1...Re6
- 2.Rc5#
- 1...Qc3
- 2.Rxd6#
- 2.Qxd6#
- 1...Qc1
- 2.Rxd6#
- 2.Qxd6#
- 1...Qa5
- 2.Rxd6#
- 2.Qxd6#
- 1...Rc4
- 2.Rxd6#
- 2.Qxc4#
- 2.Qxd6#
- 1...Rb5
- 2.Rxd6#
- 2.Qxb5#
- 2.Qxd6#
- 1...Rb6
- 2.Rc5#
- 2.Qc4#
- 1...Rc7
- 2.Rxd6#
- 2.Qxd6#
- 1...Bc6
- 2.Rc5#
- 2.Qxc6#
- 1...Rd7!
- threat
- 1.Qa2+?
- 1...Rb3
- 2.Qxb3#
- 1...Rc4
- 2.Qxc4#
- 1...Qxa2!
- 1...Rb3
- 1.Qa5+?
- 1...Rb5
- 2.Qxb5#
- 1...Qxa5!
- 1...Rb5
- 1.Sd3?
- Keys
- 1.Sg6!
- threat
- 2.Sxf4#
- 2.Sxe7#
- 1...Qxd4
- 2.Sxe7#
- 1...Rxd4
- 2.Sxe7#
- 2.Qb5#
- 1...Rxe8
- 2.Sxf4#
- 1...Bxh2
- 2.Sxe7#
- 1...Qc1
- 2.Sxe7#
- 1...Qe1
- 2.Sxf4#
- 1...Rbb7
- 2.Sxf4#
- 2.Qc4#
- 2.Qc6#
- 1...Re1
- 2.Sxf4#
- 1...Re2
- 2.Sxf4#
- 1...Re3
- 2.Sxf4#
- 1...Re4
- 2.Bxe4#
- 1...Re5
- 2.Sxf4#
- 1...Re6
- 2.Sxf4#
- 1...Ra7
- 2.Sxf4#
- 2.Be4#
- 1...Reb7
- 2.Sxf4#
- 2.Be4#
- 2.Qc6#
- 1...Rc7
- 2.Sxf4#
- 2.Be4#
- 1...Rd7
- 2.Sxf4#
- 2.Be4#
- 1...Rf7
- 2.Sxf4#
- 2.Be4#
- 1...Rg7
- 2.Sxf4#
- 2.Be4#
- 1...Rh7
- 2.Sxf4#
- 2.Be4#
- 1...Bc1
- 2.Sxe7#
- 2.Qxd6#
- 1...Bd2
- 2.Sxe7#
- 2.Qxd6#
- 1...Be3
- 2.Sxe7#
- 2.Qxd6#
- 1...Bg3
- 2.Sxe7#
- 1...Be5
- 2.Sxe7#
- 1...Bg5
- 2.Qxd6#
- threat
- 1.Sg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 14
- REMOVED MATES = 12
- Sets
- R(b);N_GUARD::QAB1(H)
- R(b);N_GUARD::QAR2(H)
- R(b);N_GUARD::QAB1(H),XR(b)
- R(b);N_GUARD,XP(D)::QAR2(H)
- R(b);N_GUARD::QAR2(H),XR(b)
- R(g);S_CUTB(h)::QAB1(H)
- B(h);N_GUARD::QAB1(H),XB(h)
- P(e);N_GUARD,XS(E)::R1(A)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(b);N_GUARD,XP(D)::QAR2(H)
- B(c);XB(B)::S(E),XR(b)
- Q(a);::S(E),XB(c)
- Q(a);::S(E),XR(b)
- B(c);N_GUARD::QAR1(H),XP(e)
- B(c);::S(E),XR(b)
- Refutation
- Q(a);XP(D)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(a);XP(D)::S(E),XR(g)
- R(g);XR(I)::S(E),XR(b)
- B(h);OGATE,XS(E)::QAB1(H),XB(h)
- Q(a);::S(E),XR(g)
- R(b);N_GUARD::QAB1(H)
- R(g);::S(E),XR(b)
- R(g);P_PINB(F)::S(E),XR(b)
- R(g);N_GUARD::B(F)
- B(c);::S(E),XR(g)
- B(c);::S(E),XR(b)
- Refutation
- Q(a);
- Try
- R(I);P_PINP(e)
- Threat
- DUALS(3)
- Vars
- Q(a);XQ(H)::R1(A)
- B(c);XS(E)::R1(A)
- R(g);::R1(A)
- Refutation
- R(g);N_SPINP(e)
- Try
- Q(H);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAB(H),XR(b)
- R(b);N_GUARD,P_SPINR(b)::QAB1(H),XR(b)
- Refutation
- Q(a);XQ(H)
- Try
- Q(H);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAR2(H),XR(b)
- Refutation
- Q(a);XQ(H)
- Try
- Actual
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(a);XP(D)::S(E),XR(g)
- R(g);XR(I)::S(E),XB(c)
- B(c);XB(B)::S(E),XR(g)
- Q(a);::S(E),XR(g)
- Q(a);::S(E),XB(c)
- R(g);::S(E),XB(c)
- R(g);N_GUARD::B(F),XR(g)
- R(g);P_PINB(F)::S(E),XB(c)
- B(c);::S(E),XR(g)
- B(c);N_GUARD::QAR1(H),XP(e)
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).