MESON Chess Problem Database
Problem Display
PID: 41412 (4R3/5RB1/2r5/Q1Npp1b1/1P1k1N2/3P1n2/1P3P2/2K2n2 w - - 0 1)
Bonivento, Oscar
La Settimana Enigmistica, 1935
#2
11 + 7
| 4436 | Problemi Opera omnia | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Rxc5+
- 2.Qxc5#
- 1...Ra6
- 2.Sb3#
- 1...Rb6
- 2.Sb3#
- 1...Rd6
- 2.Sb3#
- 1...Re6
- 2.Sb3#
- 2.Sxe6#
- 1...Rf6
- 2.Sb3#
- 1...Rg6
- 2.Sb3#
- 1...Rh6
- 2.Sb3#
- 1...Bxf4+
- 2.Rxf4#
- 1...Bh4
- 2.Se2#
- 1...Bf6
- 2.Se2#
- 1...Be7
- 2.Se2#
- 1...Bd8
- 2.Se2#
- 1...S1d2
- 2.Se2#
- 1...Se3
- 2.Se2#
- 1...Se1
- 2.Bxe5#
- 1...Sg1
- 2.Bxe5#
- 1...S3d2
- 2.Se2#
- 2.Bxe5#
- 1...Sh2
- 2.Bxe5#
- 1...Sh4
- 2.Bxe5#
- 1...Rxc5+
- Tries
- 1.Kd1?
- threat
- 2.Se2#
- 2.Sb3#
- 1...Rxc5
- 2.Qxc5#
- 1...Bxf4
- 2.Rxf4#
- 1...S1d2
- 2.Se2#
- 1...Sg3
- 2.Sb3#
- 1...Sg1
- 2.Sb3#
- 2.Bxe5#
- 1...S3d2
- 2.Se2#
- 2.Bxe5#
- 1...Se3+!
- threat
- 1.Rd7?
- threat
- 2.Rxd5#
- 1...Rxc5+
- 2.Qxc5#
- 1...Rd6
- 2.Sb3#
- 1...Se3
- 2.Se2#
- 1...Bxf4+!
- threat
- 1.Rxe5?
- threat
- 2.Re4#
- 2.Rxd5#
- 1...Rxc5+
- 2.Qxc5#
- 1...Bxf4+
- 2.Rxf4#
- 1...Rf6
- 2.Rxd5#
- 1...Bf6
- 2.Rxd5#
- 1...Sxe5!
- threat
- 1.Qd8?
- threat
- 2.Qxd5#
- 1...Bxf4+
- 2.Rxf4#
- 1...Bxd8
- 2.Se2#
- 1...Rd6
- 2.Sb3#
- 1...Se3
- 2.Se2#
- 1...Rxc5+!
- threat
- 1.Qa1?
- threat
- 2.b3#
- 1...Bxf4+
- 2.Rxf4#
- 1...Ra6
- 2.Sb3#
- 1...Rxc5+!
- threat
- 1.Qa2?
- threat
- 2.Qxd5#
- 1...Bxf4+
- 2.Rxf4#
- 1...Rd6
- 2.Sb3#
- 1...Se3
- 2.Se2#
- 1...Rxc5+!
- threat
- 1.Qa3?
- threat
- 2.Qc3#
- 1...Bxf4+
- 2.Rxf4#
- 1...Rxc5+!
- threat
- 1.Kd1?
- Keys
- 1.Rd8!
- threat
- 2.Rxd5#
- 1...Rxc5+
- 2.Qxc5#
- 1...Bxf4+
- 2.Rxf4#
- 1...Bxd8
- 2.Se2#
- 1...Rd6
- 2.Sb3#
- 1...Se3
- 2.Se2#
- threat
- 1.Rd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 13
- Sets
- R(g);CHECK,OGATE,XS(H)::QAB1(G),XR(g)
- R(g);::S(H)
- R(g);N_SPINP(e)::S(H)
- B(f);CHECK,OGATE,P_PINS(H),XS(F)::R(I),XB(f)
- B(f);N_PINS(F),P_PINS(H)::S(F)
- B(f);N_PINS(F),N_SPINP(e),P_PINS(H)::S(F)
- S(a);N_PINS(F),P_PINS(H)::S(F)
- S(b);N_GUARD::B(J),XP(e)
- Tries
- Try
- K(A);N_SPINS(F),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- R(g);OGATE,XS(H)::QAB1(G),XR(g)
- B(f);OGATE,XS(F)::R(I),XB(f)
- S(a);::S(F)
- S(a);::S(H)
- Refutation
- S(a);CHECK
- Try
- R(I);N_PINP(e),P_PINP(d)
- Threat
- R1(I),XP(d)
- Vars
- R(g);CHECK,OGATE,XS(H)::QAB1(G),XR(g)
- R(g);N_SPINP(d),P_SPINP(e)::S(H)
- S(a);N_PINS(F),P_PINS(H)::S(F)
- Refutation
- B(f);CHECK,P_PINS(H),XS(F)
- Try
- R(K);XP(e)
- Threat
- DUALS(2)
- Vars
- R(g);CHECK,OGATE,XS(H)::QAB1(G),XR(g)
- B(f);CHECK,OGATE,P_PINS(H),XS(F)::R(I),XB(f)
- R(g);::R1(K),XP(d)
- B(f);N_PINS(F),P_PINS(H)::R1(K),XP(d)
- Refutation
- S(b);P_SPINS(b),XR(K)
- Try
- Q(G);N_PINP(e),P_PINP(d)
- Threat
- QAR1(G),XP(d)
- Vars
- B(f);CHECK,OGATE,P_PINS(H),XS(F)::R(I),XB(f)
- B(f);N_PINS(F),N_SPINP(d),P_PINS(H),P_SPINP(e),XQ(G)::S(F)
- R(g);N_SPINP(d),P_SPINP(e)::S(H)
- S(a);N_PINS(F),P_PINS(H)::S(F)
- Refutation
- R(g);CHECK,XS(H)
- Try
- Q(G);
- Threat
- QAB(G)+P(B)
- Vars
- B(f);CHECK,OGATE,P_PINS(H),XS(F)::R(I),XB(f)
- R(g);::S(H)
- Refutation
- R(g);CHECK,XS(H)
- Try
- Q(G);
- Threat
- QAR1(G),XP(d)
- Vars
- B(f);CHECK,OGATE,P_PINS(H),XS(F)::R(I),XB(f)
- R(g);::S(H)
- S(a);N_PINS(F),P_PINS(H)::S(F)
- Refutation
- R(g);CHECK,XS(H)
- Try
- Q(G);
- Threat
- QAB1(G)
- Vars
- B(f);CHECK,OGATE,P_PINS(H),XS(F)::R(I),XB(f)
- Refutation
- R(g);CHECK,XS(H)
- Try
- Actual
- R(K);N_PINP(e),P_PINP(d)
- Threat
- R1(K),XP(d)
- Vars
- R(g);CHECK,OGATE,XS(H)::QAB1(G),XR(g)
- B(f);CHECK,OGATE,P_PINS(H),XS(F)::R(I),XB(f)
- B(f);N_PINS(F),N_SPINP(d),P_PINS(H),P_SPINP(e),XR(K)::S(F)
- R(g);N_SPINP(d),P_SPINP(e)::S(H)
- S(a);N_PINS(F),P_PINS(H)::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).