MESON Chess Problem Database
Problem Display
PID: 16689 (5RK1/2B2N2/r2n3p/3Qnp2/1Nbp1k2/6R1/2B2P2/4r3 w - - 0 1)
Monteiro da Silveira, ?
1st Prize, The Chess Review, 1942
#2
9 + 9
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
SOLUTION
- SOUND
- Sets
- 1...Rea1
- 2.Qxe5#
- 1...Rb1
- 2.Qxe5#
- 1...Rc1
- 2.Qxe5#
- 1...Rd1
- 2.Qxe5#
- 1...Rf1
- 2.Qxe5#
- 1...Rg1
- 2.Qxe5#
- 1...Rh1
- 2.Qxe5#
- 1...Be2
- 2.Qxe5#
- 1...Bxd5
- 2.Sxd5#
- 1...Sd3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 2.Qxf5#
- 1...Sg4
- 2.Rf3#
- 2.Qf3#
- 2.Qxf5#
- 1...Sc6
- 2.Qf3#
- 2.Qxf5#
- 1...Sg6
- 2.Qf3#
- 2.Qxf5#
- 1...Sd7
- 2.Qf3#
- 2.Qxf5#
- 1...Sexf7
- 2.Qxf5#
- 1...Se4
- 2.Bxe5#
- 2.Qxe5#
- 1...Sb5
- 2.Qf3#
- 1...Sb7
- 2.Qf3#
- 1...Sdxf7
- 2.Qf3#
- 1...Sc8
- 2.Qf3#
- 1...Se8
- 2.Qf3#
- 1...Rea1
- Tries
- 1.Sd3+?
- 1...Sxd3
- 2.Qf3#
- 1...Bxd3!
- 1...Sxd3
- 1.Sg5?
- threat
- 2.Sh3#
- 2.Se6#
- 1...Bxd5+
- 2.Sxd5#
- 1...Sg4
- 2.Sh3#
- 2.Rxf5#
- 1...Rh1
- 2.Se6#
- 1...Bf1
- 2.Se6#
- 1...Sd3
- 2.Sh3#
- 2.Rxf5#
- 1...Sf3
- 2.Sh3#
- 2.Rxf5#
- 1...Sc6
- 2.Sh3#
- 2.Rxf5#
- 1...Sg6
- 2.Sh3#
- 2.Rxf5#
- 1...Sd7
- 2.Sh3#
- 2.Rxf5#
- 1...Sef7
- 2.Sh3#
- 2.Qxf5#
- 1...Se4
- 2.Sh3#
- 2.Bxe5#
- 1...Sb5
- 2.Sh3#
- 2.Rxf5#
- 1...Sb7
- 2.Sh3#
- 2.Rxf5#
- 1...Sdf7
- 2.Sh3#
- 2.Qf3#
- 1...Sc8
- 2.Sh3#
- 2.Rxf5#
- 1...Se8
- 2.Sh3#
- 2.Rxf5#
- 1...hxg5!
- threat
- 1.Rf3+?
- 1...Sxf3
- 2.Qxf5#
- 1...Kg4!
- 1...Sxf3
- 1.Qxd4+?
- 1...Se4
- 2.Bxe5#
- 2.Qxe5#
- 1...Re4!
- 1...Se4
- 1.Sd3+?
- Keys
- 1.Sd8!
- threat
- 2.Se6#
- 1...Bxd5+
- 2.Sxd5#
- 1...Sg4
- 2.Rxf5#
- 1...Sd3
- 2.Rxf5#
- 1...Sf3
- 2.Rxf5#
- 1...Sc6
- 2.Rxf5#
- 1...Sg6
- 2.Rxf5#
- 1...Sd7
- 2.Rxf5#
- 1...Sef7
- 2.Qxf5#
- 1...Se4
- 2.Bxe5#
- 1...Sb5
- 2.Rxf5#
- 1...Sb7
- 2.Rxf5#
- 1...Sdf7
- 2.Qf3#
- 1...Sc8
- 2.Rxf5#
- 1...Se8
- 2.Rxf5#
- threat
- 1.Sd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 5
- ADDED MATES = 6
- REMOVED MATES = 8
- Sets
- R(a);N_GUARD::QAB1(E),XS(e)
- R(a);N_GUARD,P_PINR(C)::QAB1(E),XS(e)
- B(b);S_CUTR(a)::QAB1(E),XS(e)
- B(b);P_PINS(G),XQ(E)::S(D),XB(b)
- S(e);N_GUARD,P_SPINS(h)::QAR1(E)
- S(e);OGATE,P_SPINS(h),XS(G)::QAR1(E),XP(f)
- S(h);P_SPINS(e)::QAR1(E)
- S(h);P_SPINS(e),XS(G)::QAR1(E)
- Tries
- Try
- S(D);CHECK
- Vars
- S(e);P_SPINS(h),XS(D)::QAR1(E)
- Refutation
- B(b);XS(D)
- Try
- S(G);P_PINP(f),P_SPINQ(E)
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,XQ(E)::S(D),XB(b)
- R(a);::S(G)
- B(b);N_PINQ(E)::S(G)
- Refutation
- P(i);XS(G)
- Try
- R(C);CHECK
- Vars
- S(e);OGATE,P_SPINS(h),SBLOCK,XR(C)::QAR1(E),XP(f)
- Refutation
- K(d);P-FLIGHT
- Try
- Q(E);CHECK,P_SPINS(G),XP(c)
- Refutation
- R(a);P_SPINR(a)
- Try
- Actual
- S(G);P_PINP(f),P_SPINQ(E)
- Threat
- S(G)
- Vars
- B(b);CHECK,XQ(E)::S(D),XB(b)
- S(e);P_SPINS(h)::R1(H),XP(f)
- S(e);N_PINQ(E),N_SPINP(f),P_SPINS(h)::QAR1(E),XP(f)
- S(h);OGATE,P_SPINS(e)::B(F),XS(e)
- S(h);N_GUARD,P_SPINS(e)::R1(H),XP(f)
- S(h);N_PINQ(E),N_SPINP(f),P_SPINS(e)::QAR1(E)
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).