MESON Chess Problem Database
Problem Display
PID: 229195 (5B2/3p3B/1N2p3/p3kpP1/Kp5R/8/4pP2/4Qrn1 w - - 0 1)
Tan Hien Yan
Brisbane Courier, 1926
#2
8 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rxf2
- 2.Qa1#
- 1...Sf3
- 2.Qxe2#
- 1...Sh3
- 2.Qxe2#
- 1...b3
- 2.Qc3#
- 1...d5
- 2.Sd7#
- 1...d6
- 2.Bg7#
- 1...Rxf2
- Tries
- 1.Rxb4?
- threat
- 2.Qc3#
- 1...Rxe1
- 2.f4#
- 1...Sf3
- 2.Qxe2#
- 1...d5
- 2.Sd7#
- 1...axb4!
- threat
- 1.Qd2?
- threat
- 2.Sc4#
- 2.Sxd7#
- 2.Bd6#
- 2.Bg7#
- 2.Qe3#
- 2.Qf4#
- 2.Qb2#
- 2.Qd4#
- 2.Qd6#
- 1...Rxf2
- 2.Sc4#
- 2.Sxd7#
- 2.Bd6#
- 2.Bg7#
- 2.Qe3#
- 2.Qb2#
- 2.Qd4#
- 2.Qd6#
- 1...e1Q
- 2.Sc4#
- 2.Sxd7#
- 2.Bd6#
- 2.Bg7#
- 2.Qf4#
- 2.Qd4#
- 2.Qd6#
- 1...e1B
- 2.Sc4#
- 2.Sxd7#
- 2.Bd6#
- 2.Bg7#
- 2.Qe3#
- 2.Qf4#
- 2.Qd4#
- 2.Qd6#
- 1...e1R
- 2.Sc4#
- 2.Sxd7#
- 2.Bd6#
- 2.Bg7#
- 2.Qf4#
- 2.Qb2#
- 2.Qd4#
- 2.Qd6#
- 1...Rb1
- 2.Sc4#
- 2.Sxd7#
- 2.Bd6#
- 2.Bg7#
- 2.Qe3#
- 2.Qf4#
- 2.Qd4#
- 2.Qd6#
- 1...Rc1
- 2.Sxd7#
- 2.Bd6#
- 2.Bg7#
- 2.Qe3#
- 2.Qf4#
- 2.Qd4#
- 2.Qd6#
- 1...Rd1
- 2.Sc4#
- 2.Sxd7#
- 2.Bd6#
- 2.Bg7#
- 2.Qe3#
- 2.Qf4#
- 1...Sf3
- 2.Sc4#
- 2.Sxd7#
- 2.Bd6#
- 2.Bg7#
- 2.Qe3#
- 2.Qf4#
- 2.Qxe2#
- 2.Qd6#
- 1...Sh3
- 2.Sc4#
- 2.Sxd7#
- 2.Bd6#
- 2.Bg7#
- 2.Qe3#
- 2.Qb2#
- 2.Qxe2#
- 2.Qd4#
- 2.Qd6#
- 1...f4
- 2.Sc4#
- 2.Sxd7#
- 2.Bd6#
- 2.Bg7#
- 2.Qxf4#
- 2.Qb2#
- 2.Qd6#
- 1...d5
- 2.Sd7#
- 2.Qe3#
- 2.Qf4#
- 2.Qd4#
- 1...d6
- 2.Sc4#
- 2.Sd7#
- 2.Bxd6#
- 2.Bg7#
- 2.Qe3#
- 2.Qf4#
- 2.Qb2#
- 2.Qd4#
- 2.Qxd6#
- 1...Ra1+!
- threat
- 1.Qc1?
- threat
- 2.Qb2#
- 2.Qe3#
- 2.Qf4#
- 1...Rxf2
- 2.Qb2#
- 2.Qe3#
- 2.Qa1#
- 1...f4
- 2.Qb2#
- 2.Qxf4#
- 1...e1Q
- 2.Qf4#
- 1...e1B
- 2.Qe3#
- 2.Qf4#
- 1...e1R
- 2.Qb2#
- 2.Qf4#
- 1...Rd1
- 2.Qe3#
- 2.Qf4#
- 1...Sf3
- 2.Qe3#
- 2.Qf4#
- 1...Sh3
- 2.Qb2#
- 2.Qe3#
- 1...d5
- 2.Sd7#
- 2.Qe3#
- 2.Qf4#
- 2.Qc7#
- 1...Rxc1!
- threat
- 1.Rxb4?
- Keys
- 1.Rc4!
- 1...Rxe1
- 2.f4#
- 1...Rxf2
- 2.Qa1#
- 1...Sf3
- 2.Qxe2#
- 1...Sh3
- 2.Qxe2#
- 1...b3
- 2.Qc3#
- 1...f4
- 2.Re4#
- 1...d5
- 2.Sd7#
- 1...d6
- 2.Bg7#
- 1...Rxe1
- 1.Rc4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD,XP(B)::QAB(A)
- S(b);N_GUARD::QAR(A),XP(c)
- P(d);N_GUARD::QAB(A)
- P(i);SBLOCK::S(F)
- P(i);SBLOCK::B(H)
- Tries
- Try
- R(D);XP(d)
- Threat
- QAB(A)
- Vars
- R(a);N_GUARD,N_SPINP(c),XQ(A)::P(B)
- S(b);N_GUARD::QAR(A),XP(c)
- P(i);SBLOCK::S(F)
- Refutation
- P(e);XR(D)
- Try
- Q(A);N_PINP(c)
- Threat
- DUALS(9)
- Refutation
- R(a);CHECK
- Try
- Q(A);N_PINP(c)
- Threat
- DUALS(3)
- Vars
- P(c);::QAB1(A)
- Refutation
- R(a);XQ(A)
- Try
- Actual
- R(D);
- Vars
- R(a);N_GUARD,N_SPINP(c),XQ(A)::P(B)
- R(a);N_GUARD,XP(B)::QAB(A)
- S(b);N_GUARD::QAR(A),XP(c)
- P(d);N_GUARD::QAB(A)
- P(g);N_GUARD::R1(D)
- P(i);SBLOCK::S(F)
- P(i);SBLOCK::B(H)
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).