MESON Chess Problem Database
Problem Display
PID: 101609 (4q3/4r3/p1b3r1/6n1/5BQ1/KP6/1NpP3p/2kB3R w - - 0 1)
Delobel, Bernard
diagrammes, 2002
#2
8 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Re4
- 2.Be2#
- 1...Ba4
- 2.Be2#
- 1...Be4
- 2.Bf3#
- 1...Bb5
- 2.Be2#
- 1...Bd7
- 2.Be2#
- 1...Se4
- 2.Be2#
- 2.Bf3#
- 1...Se6
- 2.Bf3#
- 1...cxd1Q
- 2.Qxd1#
- 1...cxd1S
- 2.Qxd1#
- 1...cxd1B
- 2.Qxd1#
- 1...cxd1R
- 2.Qxd1#
- 1...Re4
- Tries
- 1.Bxc2+?
- 1...Kxc2
- 2.Qd1#
- 1...Bxh1
- 2.Qd1#
- 1...Re1!
- 1...Kxc2
- 1.Bxc2+?
- Keys
- 1.Qf5!
- threat
- 2.Qxc2#
- 1...Kb1
- 2.Bxc2#
- 1...cxd1Q
- 2.Rxd1#
- 1...cxd1S
- 2.Rxd1#
- 1...cxd1B
- 2.Rxd1#
- 1...cxd1R
- 2.Rxd1#
- 1...Re4
- 2.Be2#
- 1...Be4
- 2.Bf3#
- 1...Se4
- 2.Bg4#
- threat
- 1.Qf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- R(h);S_CUTB(f)::R(B)+B(A)
- B(f);N_GUARD::R(B)+B(A)
- B(f);S_CUTR(h)::R(B)+B(A)
- S(d);S_CUTR(h)::R(B)+B(A)
- P(b);OGATE,P_SPINQ(b),XB(A)::QAR1(H),XQ(b)
- P(b);OGATE,P_SPINS(b),XB(A)::QAR1(H),XS(b)
- P(b);OGATE,P_SPINB(b),XB(A)::QAR1(H),XB(b)
- P(b);OGATE,P_SPINR(b),XB(A)::QAR1(H),XR(b)
- Tries
- Try
- B(A);CHECK,XP(b)
- Vars
- K(a);P-FLIGHT,XB(A)::QAB1(H)
- B(f);XR(B)::QAR1(H)
- Refutation
- R(h);P_SPINR(h)
- Try
- Actual
- Q(H);
- Threat
- QAR1(H),XP(b)
- Vars
- K(a);P-FLIGHT,P_SPINP(b)::R(B)+B(A),DCHECK,XP(b)
- P(b);OGATE,P_SPINQ(b),XB(A)::R1(B),XQ(b)
- P(b);OGATE,P_SPINS(b),XB(A)::R1(B),XS(b)
- P(b);OGATE,P_SPINB(b),XB(A)::R1(B),XB(b)
- P(b);OGATE,P_SPINR(b),XB(A)::R1(B),XR(b)
- R(h);S_CUTB(f)::R(B)+B(A)
- B(f);S_CUTR(h)::R(B)+B(A)
- S(d);S_CUTB(f),S_CUTR(h)::R(B)+B(A)
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).