MESON Chess Problem Database
Problem Display
PID: 163018 (2N1Rqn1/3Rb3/1Npp1nQ1/r2PkP2/p5b1/K2PP3/1P4r1/7B w - - 0 1)
Onkoud, Abdelaziz
Tehtavaniekka, 2013
#2
12 + 11
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Sc4#
- 2.d4#
- 1...Rxb2
- 2.Sc4#
- 2.d4#
- 1...Rc2
- 2.d4#
- 1...Rd2
- 2.Sc4#
- 1...Re2
- 2.Sc4#
- 2.d4#
- 1...Rf2
- 2.Sc4#
- 2.d4#
- 1...Rh2
- 2.Sc4#
- 2.d4#
- 1...Rg3
- 2.Sc4#
- 2.d4#
- 1...Rxd5
- 2.Sc4#
- 1...Se4
- 2.Qe6#
- 2.d4#
- 1...Sxd5
- 2.Sc4#
- 2.Qe6#
- 1...Sh5
- 2.Qe6#
- 1...Sxd7
- 2.Qe6#
- 1...Sh7
- 2.Qe6#
- 1...Sxe8
- 2.Qe6#
- 1...Rg1
- Tries
- 1.Bxg2?
- threat
- 2.Sc4#
- 2.d4#
- 1...Rxd5
- 2.Sc4#
- 1...cxd5
- 2.d4#
- 1...Rc5
- 2.d4#
- 1...Se4
- 2.Qe6#
- 2.d4#
- 1...c5
- 2.Sc4#
- 1...Bf3!
- threat
- 1.Rxd6?
- threat
- 2.Sc4#
- 1...Rc2
- 2.d4#
- 1...Rc5
- 2.Re6#
- 1...cxd5!
- threat
- 1.Bxg2?
- Keys
- 1.Sxd6!
- threat
- 2.d4#
- 1...Rxd5
- 2.Sc4#
- 1...Rd2
- 2.Sc4#
- 1...c5
- 2.Sdc4#
- threat
- 1.Sxd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(a);::P(D)
- R(a);::S(H)
- R(d);SBLOCK,XP(F)::S(H)
- S(h);OGATE::QAR1(I)
- S(h);OGATE,XR(J)::QAR1(I)
- S(h);N_SPINB(i),OGATE,XR(L)::QAR1(I)
- Tries
- Try
- B(A);XR(a)
- Threat
- DUALS(2)
- Vars
- R(d);XP(F)::S(H)
- P(f);XP(F)::P(D)
- R(d);::P(D)
- P(f);::S(H)
- Refutation
- B(c);
- Try
- R(J);P_SPINR(J),XP(g)
- Threat
- S(H)
- Vars
- R(a);::P(D)
- R(d);N_PINR(J)::R1(J)
- Refutation
- P(f);XP(F)
- Try
- Actual
- S(K);P_SPINS(K),XP(g)
- Threat
- P(D)
- Vars
- R(d);SBLOCK,XP(F)::S(H)
- R(a);::S(H)
- P(f);N_PINS(K)::S(K)
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).