MESON Chess Problem Database
Problem Display
PID: 270965 (8/4K3/4RQ1B/3p2nB/7b/1PPk2P1/1Pn2R2/7b w - - 0 1)
Sancho, Juan Antonio
Probleemblad, 1951
#2
10 + 6
SOLUTION
- SOUND
- Sets
- 1...Sa1
- 2.Qd4#
- 1...Se1
- 2.Qd4#
- 1...Sa3
- 2.Qd4#
- 1...Se3
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sf3
- 2.Bg6#
- 1...Sh3
- 2.Be2#
- 2.Rd2#
- 1...Se4
- 2.Be2#
- 1...Sf7
- 2.Be2#
- 2.Rd2#
- 1...Sh7
- 2.Be2#
- 2.Rd2#
- 1...Sa1
- Tries
- 1.Bd1?
- threat
- 2.Bxc2#
- 1...Sa1
- 2.Qd4#
- 1...Se1
- 2.Qd4#
- 1...Sa3
- 2.Qd4#
- 1...Se3
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Be4!
- threat
- 1.Bg6+?
- 1...Se4
- 2.Rd2#
- 1...Be4!
- 1...Se4
- 1.Bxg5?
- threat
- 2.Be2#
- 2.Rd2#
- 1...Bf3
- 2.Rd2#
- 1...Sa1
- 2.Rd2#
- 2.Re3#
- 2.Qd4#
- 1...Se1
- 2.Rd2#
- 2.Re3#
- 2.Qd4#
- 1...Sa3
- 2.Rd2#
- 2.Re3#
- 2.Qd4#
- 1...Se3
- 2.Rxe3#
- 2.Qd4#
- 1...Sb4
- 2.Rd2#
- 2.Re3#
- 2.Qd4#
- 1...Sd4
- 2.Rd2#
- 2.Re3#
- 2.Qxd4#
- 1...Bxg5!
- threat
- 1.Rg2?
- threat
- 2.Qf1#
- 1...Sxe6
- 2.Bg6#
- 1...Se3
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sf3
- 2.Bg6#
- 1...Sh3
- 2.Be2#
- 2.Bg6#
- 2.Rd2#
- 1...Se4
- 2.Be2#
- 1...Sf7
- 2.Be2#
- 2.Bg6#
- 2.Rd2#
- 1...Sh7
- 2.Be2#
- 2.Bg6#
- 2.Rd2#
- 1...Bxg2!
- threat
- 1.Re3+?
- 1...Sxe3
- 2.Qd4#
- 1...Kxe3!
- 1...Sxe3
- 1.Qxg5?
- threat
- 2.Be2#
- 2.Rd2#
- 1...Bf3
- 2.Rd2#
- 1...Sa1
- 2.Rd2#
- 2.Re3#
- 1...Se1
- 2.Rd2#
- 2.Re3#
- 1...Sa3
- 2.Rd2#
- 2.Re3#
- 1...Se3
- 2.Rxe3#
- 1...Sb4
- 2.Rd2#
- 2.Re3#
- 1...Sd4
- 2.Rd2#
- 2.Re3#
- 1...Bxg5+!
- threat
- 1.Bd1?
- Keys
- 1.Re1!
- threat
- 2.Qa6#
- 1...Sxe1
- 2.Qd4#
- 1...Se3
- 2.Qd4#
- 1...Sa3
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sf3
- 2.Bg6#
- 1...Sh3
- 2.Rd2#
- 1...Se4
- 2.Be2#
- 1...Se6
- 2.Rd2#
- 1...Sf7
- 2.Rd2#
- 1...Sh7
- 2.Rd2#
- threat
- 1.Re1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- S(b);N_GUARD::QAR1(H)
- S(b);N_GUARD::QAR1(H),XS(b)
- S(f);N_GUARD,P_PINQ(H),S_CUTB(a)::B(F)
- S(f);P_PINQ(H)::B(F)
- Tries
- Try
- B(F);
- Threat
- B(F),XS(b)
- Vars
- S(b);N_GUARD::QAR1(H)
- S(b);N_GUARD::QAR1(H),XS(b)
- Refutation
- B(a);
- Try
- B(F);CHECK
- Vars
- S(f);P_PINQ(H),P_SPINS(f)::R1(B)
- Refutation
- B(a);P_SPINB(a)
- Try
- B(I);XS(f)
- Threat
- DUALS(2)
- Vars
- B(a);::R1(B)
- Refutation
- B(d);P_PINQ(H),XB(I)
- Try
- R(B);
- Threat
- QAB(H)
- Vars
- S(f);N_GUARD,P_PINQ(H),XR(G)::B(F)
- S(b);N_GUARD::QAR1(H)
- S(b);N_GUARD::QAR1(H),XS(b)
- S(f);N_GUARD,P_PINQ(H)::B(F)
- S(f);P_PINQ(H)::B(F)
- Refutation
- B(a);XR(B)
- Try
- R(G);CHECK
- Vars
- S(b);XR(G)::QAR1(H)
- Refutation
- K(c);P-FLIGHT,P_SPINS(f),XR(G)
- Try
- Q(H);P_SPINQ(H),XS(f)
- Threat
- DUALS(2)
- Vars
- B(a);::R1(B)
- S(b);N_GUARD::R1(G),XS(b)
- Refutation
- B(d);CHECK,XQ(H)
- Try
- Actual
- R(G);
- Threat
- QAB(H)
- Vars
- S(b);N_GUARD,XR(G)::QAR1(H)
- S(b);N_GUARD::QAR1(H)
- S(b);N_GUARD::QAR1(H),XS(b)
- S(f);N_GUARD,P_PINQ(H),S_CUTB(a)::B(F)
- S(f);P_PINQ(H)::R1(B)
- S(f);P_PINQ(H),SBLOCK::B(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).