MESON Chess Problem Database
Problem Display
PID: 231479 (1b4K1/3N4/1R6/3k4/R1b5/1n2PPB1/Qp1r4/n1r5 w - - 0 1)
Eddy, Edwin John
Brisbane Courier, 1927
#2
8 + 8
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bf1
- 2.e4#
- 1...Be2
- 2.e4#
- 1...Bd3
- 2.Rd4#
- 1...Bb5
- 2.e4#
- 1...Ba6
- 2.e4#
- 1...Bd6
- 2.Rxd6#
- 1...Ba7
- 2.Rd6#
- 1...Sd4
- 2.e4#
- 1...Sa5
- 2.Rxa5#
- 1...Sc5
- 2.Sf6#
- 1...Bf1
- Tries
- 1.Qxb3?
- threat
- 2.Ra5#
- 1...Bxb3
- 2.e4#
- 1...Bd6
- 2.Rxd6#
- 1...Sxb3!
- threat
- 1.Qxb3?
- Keys
- 1.Rab4!
- threat
- 2.Qa8#
- 1...Bd6
- 2.Rxd6#
- 1...Bf1
- 2.e4#
- 1...Be2
- 2.e4#
- 1...Bd3
- 2.Rd4#
- 1...Bb5
- 2.e4#
- 1...Ba6
- 2.e4#
- 1...Ba7
- 2.Rd6#
- 1...Sd4
- 2.e4#
- 1...Sa5
- 2.R4b5#
- 1...Sc5
- 2.Sf6#
- threat
- 1.Rab4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(f);P_SPINS(e)::P(B)
- B(f);OGATE,P_SPINS(e)::R1(E)
- B(h);N_GUARD::R1(F),XB(h)
- B(h);N_GUARD::R1(F)
- S(e);P_SPINB(f),SBLOCK::P(B)
- S(e);N_GUARD,P_SPINB(f)::R(E),XS(e)
- S(e);P_SPINB(f),SBLOCK::S(G)
- Tries
- Try
- Q(A);P_PINB(f),XS(e)
- Threat
- R(E)
- Vars
- B(f);N_SPINB(f),XQ(A)::P(B)
- B(h);N_GUARD::R1(F),XB(h)
- Refutation
- S(a);N_SPINB(f),XQ(A)
- Try
- Actual
- R(E);
- Threat
- QAB(A)
- Vars
- B(h);N_GUARD::R1(F),XB(h)
- B(f);P_SPINS(e)::P(B)
- B(f);OGATE,P_SPINS(e)::R1(E)
- B(h);N_GUARD::R1(F)
- S(e);P_SPINB(f),SBLOCK::P(B)
- S(e);N_GUARD,P_SPINB(f)::R(E)
- S(e);P_SPINB(f),SBLOCK::S(G)
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).