MESON Chess Problem Database
Problem Display
PID: 264029 (KB2R3/b6b/4Bpq1/5r2/1N2rR1N/4k3/nQ2p3/5n2 w - - 0 1)
Arguelles Ferrer, Antonio Fernandez
2nd HM., Tijdschrift vd KNSB, 1943
#2
8 + 10
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qh5
- 2.Sg2#
- 1...Qf7
- 2.Sg2#
- 1...Qxe8
- 2.Sg2#
- 1...Qg2
- 2.Sxg2#
- 1...Qh6
- 2.Sg2#
- 1...Ra5
- 2.Rf3#
- 1...Rb5
- 2.Rf3#
- 1...Rc5
- 2.Rf3#
- 1...Rd5
- 2.Rf3#
- 1...Re5
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Rh5
- 2.Rf3#
- 1...Sg3
- 2.Sg2#
- 1...Sc3
- 2.Qxc3#
- 1...e1S
- 2.Qf2#
- 1...e1R
- 2.Qf2#
- 1...Qh5
- Tries
- 1.Sd5+?
- 1...Rxd5
- 2.Rf3#
- 1...Kd3!
- 1...Rxd5
- 1.Bxa2?
- threat
- 2.Rexe4#
- 2.Qc3#
- 1...Qxe8
- 2.Sg2#
- 2.Qc3#
- 1...Rxe8
- 2.Qc3#
- 1...Rxf4
- 2.Bxa7#
- 1...Bxb8
- 2.Rexe4#
- 1...Rfe5
- 2.Rf3#
- 1...e1Q
- 2.Rfxe4#
- 2.Rexe4#
- 1...e1S
- 2.Rfxe4#
- 2.Rexe4#
- 2.Qf2#
- 1...e1B
- 2.Rfxe4#
- 2.Rexe4#
- 1...e1R
- 2.Rfxe4#
- 2.Rexe4#
- 2.Qf2#
- 1...Qg2
- 2.Sxg2#
- 2.Qc3#
- 1...Re6
- 2.Qc3#
- 1...Re7
- 2.Qc3#
- 1...Ra5
- 2.Rf3#
- 2.Qc3#
- 1...Rb5
- 2.Rf3#
- 2.Qc3#
- 1...Rc5
- 2.Rf3#
- 1...Rd5
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 2.Qc3#
- 1...Rh5
- 2.Rf3#
- 2.Qc3#
- 1...Bd4
- 2.Rexe4#
- 1...Sd2
- 2.Qc3#
- 1...Sg3
- 2.Sg2#
- 2.Qc3#
- 1...Ree5!
- threat
- 1.Bxf5?
- threat
- 2.Rf3#
- 2.Rexe4#
- 1...Qxf5
- 2.Sg2#
- 1...Qxe8
- 2.Sg2#
- 2.Rf3#
- 1...Rxe8
- 2.Sd5#
- 2.Rf3#
- 1...Sxb4
- 2.Rf3#
- 1...Re5
- 2.Sd5#
- 2.Rf3#
- 1...Sc3
- 2.Qxc3#
- 1...e1S
- 2.Rfxe4#
- 2.Rexe4#
- 2.Qf2#
- 1...Qh5
- 2.Sg2#
- 2.Rexe4#
- 1...Qg2
- 2.Sxg2#
- 1...Qg3
- 2.Rexe4#
- 1...Qg4
- 2.Rexe4#
- 1...Re6
- 2.Sd5#
- 2.Rf3#
- 2.Rxe6#
- 1...Re7
- 2.Sd5#
- 2.Rf3#
- 2.Rxe7#
- 1...Sh2
- 2.Rexe4#
- 1...Sg3
- 2.Sg2#
- 2.Rf3#
- 1...Sd2!
- threat
- 1.Bxa7+?
- 1...Rd4
- 2.Qxd4#
- 1...Rc5
- 2.Rf3#
- 1...Kxf4!
- 1...Rd4
- 1.Rxe4+?
- 1...Kxe4
- 2.Bd5#
- 2.Bxf5#
- 1...Kf2!
- 1...Kxe4
- 1.Qa3+?
- 1...Kd4
- 2.Sc2#
- 2.Sc6#
- 1...Sc3
- 2.Qxc3#
- 1...Kd2!
- 1...Kd4
- 1.Sd5+?
- Keys
- 1.Bc4!
- threat
- 2.Rexe4#
- 1...Qxe8
- 2.Sg2#
- 1...Rxe8
- 2.Qxe2#
- 1...Rxf4
- 2.Bxa7#
- 1...Ree5
- 2.Sd5#
- 1...Rfe5
- 2.Rf3#
- 1...Sc3
- 2.Qxc3#
- 1...Qg2
- 2.Sxg2#
- 1...Re6
- 2.Qxe2#
- 1...Re7
- 2.Qxe2#
- 1...Ra5
- 2.Rf3#
- 1...Rb5
- 2.Rf3#
- 1...Rc5
- 2.Rf3#
- 1...Rd5
- 2.Sxd5#
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Rh5
- 2.Rf3#
- 1...Sd2
- 2.Sc2#
- 1...Sg3
- 2.Sg2#
- threat
- 1.Bc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 6
- Sets
- Q(h);N_GUARD::S(D)
- Q(h);N_GUARD,P_PINB(G),XR(H)::S(D)
- Q(h);N_GUARD::S(D),XQ(h)
- R(f);N_GUARD::R1(C)
- S(a);S_CUTQ(h)::S(D)
- S(b);N_GUARD::QAR2(A),XS(b)
- P(c);OGATE::QAB1(A)
- Tries
- Try
- S(B);CHECK
- Vars
- R(f);XS(B)::R1(C)
- Refutation
- K(d);P-FLIGHT
- Try
- B(E);P_PINR(e),XS(b)
- Threat
- DUALS(2)
- Vars
- R(e);N_SPINR(e),P_PINB(G),XR(H)::QAR2(A)
- R(f);N_GUARD,SBLOCK,XR(C)::B(G),XB(i)
- B(i);XB(G)::R1(H),XR(e)
- R(f);N_GUARD,N_SPINR(e)::R1(C)
- R(e);::QAR2(A)
- R(f);N_GUARD::R1(C)
- B(i);::R1(H),XR(e)
- S(a);::QAR2(A)
- Refutation
- R(e);
- Try
- B(E);P_PINR(e),XR(f)
- Threat
- DUALS(2)
- Vars
- Q(h);N_GUARD,XB(E)::S(D)
- S(b);XS(B)::R1(C)
- S(b);N_GUARD::QAR2(A),XS(b)
- Q(h);N_GUARD::S(D),XQ(h)
- Q(h);::R1(H),XR(e)
- S(a);::R1(H),XR(e)
- Refutation
- S(a);
- Try
- B(G);CHECK,XB(i)
- Vars
- R(e);N_GUARD,P_SPINR(e)::QAB1(A),XR(e)
- R(f);P_SPINR(f)::R1(C)
- Refutation
- K(d);S_FLIGHT,XR(C)
- Try
- R(C);CHECK,XR(e)
- Refutation
- K(d);P_SPINP(c),S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::QAR2(A),XS(b)
- Refutation
- K(d);S_FLIGHT
- Try
- Actual
- B(E);P_PINR(e)
- Threat
- R1(H),XR(e)
- Vars
- Q(h);N_GUARD,N_SPINR(e),P_PINB(G),XR(H)::S(D)
- R(e);N_SPINR(e),P_PINB(G),XR(H)::QAR1(A),XP(c)
- R(f);N_GUARD,SBLOCK,XR(C)::B(G),XB(i)
- R(e);S_CUTR(f)::S(B)
- R(f);N_GUARD,N_SPINR(e)::R1(C)
- S(b);N_GUARD::QAR2(A),XS(b)
- Q(h);N_GUARD::S(D),XQ(h)
- R(e);::QAR1(A),XP(c)
- R(f);N_GUARD::R1(C)
- S(a);SBLOCK::S(B)
- S(a);S_CUTQ(h)::S(D)
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).