MESON Chess Problem Database
Problem Display
PID: 76702 (1BR1K3/4N2B/5P1p/2np4/2pkr2R/Nrp1p3/n1P5/6Qb w - - 0 1)
Monreal, Pierre
Het Belgisch Schaakbord (L'Echiquier Belge), 1961
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Sxb5#
- 1...Rf4
- 2.Sc6#
- 1...Rg4
- 2.Sc6#
- 1...Rxh4
- 2.Sc6#
- 1...Sb4
- 2.Sb5#
- 1...Sa4
- 2.Qd1#
- 1...Sa6
- 2.Qd1#
- 1...Se6
- 2.Sf5#
- 2.Qd1#
- 1...Sb7
- 2.Qd1#
- 1...Sd7
- 2.Qd1#
- 1...Rb5
- Tries
- 1.Kf7?
- threat
- 2.Sf5#
- 2.Sc6#
- 1...Rxb8
- 2.Sc6#
- 1...Rxh4
- 2.Sc6#
- 1...Rb6
- 2.Sf5#
- 1...Rf4
- 2.Sc6#
- 1...Rg4
- 2.Sc6#
- 1...Sb4
- 2.Sb5#
- 2.Sf5#
- 1...Sd3
- 2.Sf5#
- 1...Sa4
- 2.Sf5#
- 2.Qd1#
- 1...Sa6
- 2.Sf5#
- 2.Qd1#
- 1...Se6
- 2.Sf5#
- 2.Qd1#
- 1...Sb7
- 2.Sf5#
- 2.Qd1#
- 1...Sd7
- 2.Sf5#
- 2.Qd1#
- 1...Rb7!
- threat
- 1.Bxe4?
- threat
- 2.Sf5#
- 2.Sc6#
- 1...Rxb8
- 2.Sc6#
- 1...Sxe4
- 2.Sf5#
- 2.Qd1#
- 1...Rb6
- 2.Sf5#
- 1...Sb4
- 2.Sb5#
- 2.Sf5#
- 1...Sd3
- 2.Sf5#
- 1...Sa4
- 2.Sf5#
- 2.Bxh1#
- 2.Bg2#
- 2.Bf3#
- 2.Qd1#
- 1...Sa6
- 2.Sf5#
- 2.Bxh1#
- 2.Bg2#
- 2.Bf3#
- 2.Qd1#
- 1...Se6
- 2.Sf5#
- 2.Qd1#
- 1...Sb7
- 2.Sf5#
- 2.Bxh1#
- 2.Bg2#
- 2.Bf3#
- 2.Qd1#
- 1...Sd7
- 2.Sf5#
- 2.Bxh1#
- 2.Bg2#
- 2.Bf3#
- 2.Qd1#
- 1...dxe4!
- threat
- 1.Rxe4+?
- 1...Bxe4
- 2.Sc6#
- 1...Sxe4
- 2.Sf5#
- 1...dxe4!
- 1...Bxe4
- 1.Qg5?
- threat
- 2.Be5#
- 2.Qxd5#
- 2.Qe5#
- 1...Rxb8
- 2.Qxd5#
- 1...Rxh4
- 2.Sc6#
- 2.Be5#
- 2.Qe5#
- 1...Rf4
- 2.Sc6#
- 2.Be5#
- 2.Qe5#
- 1...Rg4
- 2.Sc6#
- 2.Be5#
- 2.Qe5#
- 1...Sb4
- 2.Sb5#
- 2.Be5#
- 2.Qe5#
- 1...Sd3
- 2.Qxd5#
- 1...Sd7
- 2.Qxd5#
- 1...e2
- 2.Be5#
- 2.Qg1#
- 1...hxg5!
- threat
- 1.Kf7?
- Keys
- 1.Qg8!
- threat
- 2.Qxd5#
- 1...Rxh4
- 2.Sc6#
- 1...e2
- 2.Qg1#
- 1...Rf4
- 2.Sc6#
- 1...Rg4
- 2.Sc6#
- 1...Sb4
- 2.Sb5#
- 1...Se6
- 2.Sf5#
- threat
- 1.Qg8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- R(c);N_GUARD::S(C),XR(c)
- R(h);N_PINS(F)::S(F)
- R(h);N_PINS(F),N_SPINR(h),XR(D)::S(F)
- S(b);S_CUTR(c)::S(C)
- S(i);N_GUARD::QAR(A)
- Tries
- Try
- K(J);N_SPINS(F),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- R(c);XB(H)::S(F)
- R(h);N_SPINR(h),XR(D)::S(F)
- R(c);::S(F)
- R(h);P_PINP(E)::S(F)
- R(h);::S(F)
- S(i);::S(F)
- Refutation
- R(c);P_PINS(F)
- Try
- B(G);N_SPINS(F),XR(h)
- Threat
- DUALS(2)
- Vars
- R(c);P_PINR(I),XB(H)::S(F)
- R(c);::S(F)
- S(i);::S(F)
- Refutation
- P(j);XB(G)
- Try
- R(D);CHECK,N_SPINS(F),XR(h)
- Vars
- B(a);XR(D)::S(F)
- S(i);SBLOCK,XR(D)::S(F)
- Refutation
- P(j);XR(D)
- Try
- Q(A);N_PINP(e)
- Threat
- DUALS(3)
- Vars
- R(c);P_PINR(I),XB(H)::QAR1(A),XP(j)
- S(i);::QAR1(A),XP(j)
- Refutation
- P(k);XQ(A)
- Try
- Actual
- Q(A);N_PINP(e)
- Threat
- QAR1(A),XP(j)
- Vars
- R(h);N_PINS(F),N_SPINR(h),XR(D)::S(F)
- P(e);OGATEB::QAB(A)
- R(h);N_PINS(F)::S(F)
- S(b);S_CUTR(c)::S(C)
- S(i);N_PINS(F)::S(F)
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).