MESON Chess Problem Database
Problem Display
PID: 204553 (1b1n4/8/5RK1/3pkpN1/3qB2N/6P1/4PP2/3RQrn1 w - - 0 1)
Balazs, Miklos
Csontos, Jeno
Ujsag, 1925
#2
10 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.Rxd5#
- 1...Qb2
- 2.Rxd5#
- 1...Qxf2
- 2.Rxd5#
- 1...Qc3
- 2.Rxd5#
- 1...Qe3
- 2.Rxd5#
- 1...Qb6
- 2.Rxd5#
- 1...Qa7
- 2.Rxd5#
- 1...Qa4
- 2.Rxd5#
- 1...Qb4
- 2.Rxd5#
- 1...Rxe1
- 2.f4#
- 1...Bd6
- 2.Rxf5#
- 1...Sxe2
- 2.Shf3#
- 1...Sf3
- 2.Shxf3#
- 1...Sh3
- 2.Shf3#
- 1...Sc6
- 2.Re6#
- 1...Se6
- 2.Rxe6#
- 1...Sb7
- 2.Re6#
- 1...Sf7
- 2.Re6#
- 1...f4
- 2.gxf4#
- 1...Qa1
- Tries
- 1.Sgf3+?
- 1...Kxe4
- 2.Rxd4#
- 1...Sxf3!
- 1...Kxe4
- 1.Qb4?
- threat
- 2.Rxf5#
- 2.Qxd4#
- 2.Qxb8#
- 1...Qxf2
- 2.Rxd5#
- 2.Qxb8#
- 1...Qxd1
- 2.Rxf5#
- 1...Qxb4
- 2.Rxd5#
- 1...Qxe4
- 2.Qxb8#
- 1...Rxd1
- 2.Rxf5#
- 2.Qxb8#
- 2.f4#
- 1...Rxf2
- 2.Qxd4#
- 2.Qxb8#
- 1...Sxe2
- 2.Shf3#
- 2.Rxf5#
- 2.Qxb8#
- 1...dxe4
- 2.Rxf5#
- 2.Qxd4#
- 1...fxe4
- 2.Rf5#
- 2.Qxd4#
- 2.Qxb8#
- 1...Qa1
- 2.Rxd5#
- 2.Rxf5#
- 2.Qxb8#
- 1...Qb2
- 2.Rxd5#
- 2.Rxf5#
- 1...Qc3
- 2.Rxd5#
- 2.Rxf5#
- 1...Qe3
- 2.Rxd5#
- 2.Rxf5#
- 2.Qxb8#
- 1...Qb6
- 2.Rxd5#
- 1...Qa7
- 2.Rxd5#
- 2.Rxf5#
- 1...Qd2
- 2.Rxf5#
- 1...Qd3
- 2.Rxf5#
- 1...Qc4
- 2.Rxf5#
- 1...Bd6
- 2.Rxf5#
- 2.Qxd6#
- 2.Qxd4#
- 1...Ba7
- 2.Rxf5#
- 2.Qd6#
- 1...Bc7
- 2.Rxf5#
- 2.Qxd4#
- 1...Sf3
- 2.Shxf3#
- 2.Rxf5#
- 2.Qxb8#
- 1...Sc6
- 2.Rxf5#
- 2.Re6#
- 1...Se6
- 2.Rxf5#
- 2.Rxe6#
- 1...Sb7
- 2.Rxf5#
- 2.Re6#
- 2.Qe7#
- 2.Qxd4#
- 1...Sf7
- 2.Rxf5#
- 2.Re6#
- 2.Qe7#
- 2.Qxd4#
- 1...f4
- 2.Rf5#
- 2.Qxd4#
- 2.Qxb8#
- 2.gxf4#
- 1...Qc5!
- threat
- 1.Sgf3+?
- Keys
- 1.Qc3!
- threat
- 2.Qxd4#
- 1...Qxc3
- 2.Rxd5#
- 1...Rxd1
- 2.f4#
- 1...Sxe2
- 2.Shf3#
- 1...Se6
- 2.Rxe6#
- 1...Ba7
- 2.Qc7#
- 1...Sf3
- 2.Shxf3#
- 1...Sc6
- 2.Re6#
- threat
- 1.Qc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 14
- Sets
- Q(c);OGATE::R1(A),XP(d)
- Q(c);OGATE,XP(D)::R1(A),XP(d)
- Q(c);OGATE,P_PINR(I)::R1(A),XP(d)
- R(a);N_GUARD,XQ(B)::P(D)
- B(g);SBLOCK::R1(I),XP(f)
- S(b);N_GUARD,XP(C)::S(G)
- S(b);N_GUARD::S(G),XS(b)
- S(b);N_GUARD::S(G)
- S(h);N_GUARD::R1(I)
- S(h);N_GUARD::R1(I),XS(h)
- P(f);OGATE::P(E),XP(f)
- Tries
- Try
- S(H);CHECK
- Vars
- K(e);P-FLIGHT,XB(F)::R1(A),XQ(c)
- Refutation
- S(b);XS(H)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- Q(c);XR(A)::R1(I),XP(f)
- Q(c);OGATE,XQ(B)::R1(A),XP(d)
- Q(c);XB(F)::QAB(B),XB(g)
- Q(c);OGATE,P_PINR(I)::R1(A),XP(d)
- Q(c);::R1(I),XP(f)
- Refutation
- Q(c);
- Try
- Actual
- Q(B);P_PINQ(c)
- Threat
- QAB1(B),XQ(c)
- Vars
- Q(c);N_SPINQ(c),OGATE,XQ(B)::R1(A),XP(d)
- R(a);N_GUARD,XR(A)::P(D)
- S(b);N_GUARD,XP(C)::S(G)
- S(h);N_GUARD::R1(I),XS(h)
- B(g);N_GUARD::QAB(B)
- S(b);N_GUARD::S(G),XS(b)
- S(h);N_GUARD::R1(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).