MESON Chess Problem Database
Problem Display
PID: 168451 (1r2b3/pQ3pp1/2nn4/1p6/1P6/3k3r/1B6/K1RBRN2 w - - 0 1)
Petite, Efren
1st Prize, Problemas, 1984
#2
8 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Re3#
- 1...Rh2
- 2.Re3#
- 1...Re3
- 2.Rxe3#
- 1...Rh4
- 2.Re3#
- 1...Rh5
- 2.Re3#
- 1...Rh6
- 2.Re3#
- 1...Rh7
- 2.Re3#
- 1...Rh8
- 2.Re3#
- 1...Sxb4
- 2.Be2#
- 1...Sd4
- 2.Rc3#
- 1...Sa5
- 2.Be2#
- 2.Qd5#
- 1...Se5
- 2.Be2#
- 2.Qd5#
- 1...Se7
- 2.Be2#
- 1...Sd8
- 2.Be2#
- 2.Qd5#
- 1...Sc4
- 2.Bc2#
- 1...Se4
- 2.Be2#
- 1...Rh1
- Tries
- 1.Bb3?
- threat
- 2.Rcd1#
- 1...Re3
- 2.Rxe3#
- 1...Rh2
- 2.Re3#
- 1...Sc4
- 2.Bc2#
- 1...Se4!
- threat
- 1.Bf3?
- threat
- 2.Red1#
- 2.Re3#
- 1...Rh2
- 2.Re3#
- 1...Sc4
- 2.Be4#
- 1...Se4
- 2.Be2#
- 2.Bxe4#
- 2.Re3#
- 1...Sf5
- 2.Be4#
- 2.Red1#
- 1...Rxf3!
- threat
- 1.Be5?
- threat
- 2.Rc3#
- 1...Sxe5
- 2.Qd5#
- 1...Re3
- 2.Rxe3#
- 1...Se4
- 2.Be2#
- 1...Sd4!
- threat
- 1.Rc5?
- threat
- 2.Bc2#
- 1...Sxb4
- 2.Be2#
- 1...Sd4
- 2.Rc3#
- 1...Rh2
- 2.Re3#
- 1...Sc4!
- threat
- 1.Re5?
- threat
- 2.Be2#
- 1...Sxe5
- 2.Qd5#
- 1...Sd4
- 2.Rc3#
- 1...Rh2
- 2.Re3#
- 1...Re3
- 2.Rxe3#
- 1...Se4!
- threat
- 1.Qxc6?
- threat
- 2.Bc2#
- 2.Be2#
- 2.Qd5#
- 2.Qc2#
- 2.Qc3#
- 2.Qxd6#
- 1...Se4
- 2.Bc2#
- 2.Be2#
- 2.Qxe4#
- 2.Qd5#
- 2.Qc2#
- 1...Rh2
- 2.Re3#
- 2.Qf3#
- 2.Qd5#
- 2.Qc3#
- 2.Qxd6#
- 1...Re3
- 2.Bc2#
- 2.Rxe3#
- 2.Qd5#
- 2.Qc2#
- 1...Rh4
- 2.Bc2#
- 2.Be2#
- 2.Re3#
- 2.Qf3#
- 2.Qc2#
- 2.Qc3#
- 1...Rh5
- 2.Bc2#
- 2.Be2#
- 2.Re3#
- 2.Qf3#
- 2.Qc2#
- 2.Qc3#
- 1...Rh6
- 2.Bc2#
- 2.Be2#
- 2.Re3#
- 2.Qf3#
- 2.Qd5#
- 2.Qc2#
- 2.Qc3#
- 1...Rb6
- 2.Bc2#
- 2.Be2#
- 2.Qd5#
- 2.Qc2#
- 2.Qc3#
- 1...Rc8
- 2.Bc2#
- 2.Be2#
- 2.Qd5#
- 2.Qxd6#
- 1...Rd8
- 2.Bc2#
- 2.Be2#
- 2.Qd5#
- 2.Qc2#
- 2.Qc3#
- 1...Sc4
- 2.Bc2#
- 2.Be2#
- 2.Qe4#
- 2.Qd5#
- 1...Sf5
- 2.Bc2#
- 2.Be2#
- 2.Qe4#
- 2.Qc2#
- 2.Qc3#
- 1...Sb7
- 2.Bc2#
- 2.Be2#
- 2.Qe4#
- 2.Qd5#
- 2.Qc2#
- 2.Qc3#
- 1...Sc8
- 2.Bc2#
- 2.Be2#
- 2.Qe4#
- 2.Qd5#
- 2.Qc2#
- 2.Qc3#
- 1...Bxc6!
- threat
- 1.Qxa7?
- threat
- 2.Rc3#
- 2.Qa3#
- 1...Re3
- 2.Rxe3#
- 2.Qxe3#
- 1...Se4
- 2.Be2#
- 1...Rb6
- 2.Qa3#
- 1...Ra8
- 2.Rc3#
- 1...Sd4
- 2.Rc3#
- 2.Qxd4#
- 1...Sa5
- 2.Rc3#
- 2.Qd4#
- 1...Sc4
- 2.Bc2#
- 2.Rc3#
- 1...Sxa7!
- threat
- 1.Qe7?
- threat
- 2.Be2#
- 2.Qe2#
- 1...Se4
- 2.Be2#
- 2.Qxe4#
- 1...Rh2
- 2.Re3#
- 2.Qe3#
- 1...Re3
- 2.Rxe3#
- 2.Qxe3#
- 1...Sd4
- 2.Rc3#
- 1...Se5
- 2.Qxd6#
- 1...Sxe7!
- threat
- 1.Bb3?
- Keys
- 1.Qa6!
- threat
- 2.Qa3#
- 1...Re3
- 2.Rxe3#
- 1...Se4
- 2.Be2#
- 1...Sd4
- 2.Rc3#
- 1...Sa5
- 2.Qxd6#
- 1...Sc4
- 2.Bc2#
- threat
- 1.Qa6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 9
- Sets
- R(b);N_GUARD::R1(D)
- R(b);N_GUARD::R1(D),XR(b)
- S(d);XP(G)::B(C)
- S(d);SBLOCK::R1(B)
- S(d);::B(C)
- S(e);SBLOCK::B(C)
- Tries
- Try
- B(C);
- Threat
- R(B)
- Vars
- R(b);N_GUARD::R1(D),XR(b)
- R(b);N_GUARD::R1(D)
- S(e);SBLOCK::B(C)
- Refutation
- S(e);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(b);::R1(D)
- S(e);N_GUARD::B(C)
- Refutation
- R(b);XB(C)
- Try
- B(F);
- Threat
- R1(B)
- Vars
- S(d);OGATE,XB(F)::QAR2(H)
- R(b);N_GUARD::R1(D),XR(b)
- S(e);SBLOCK::B(C)
- Refutation
- S(d);
- Try
- R(B);
- Threat
- B(C)
- Vars
- S(d);XP(G)::B(C)
- S(d);SBLOCK::R1(B)
- R(b);N_GUARD::R1(D)
- Refutation
- S(e);
- Try
- R(D);
- Threat
- B(C)
- Vars
- S(d);OGATE,XR(D)::QAR2(H)
- S(d);SBLOCK::R1(B)
- R(b);N_GUARD::R1(D)
- R(b);N_GUARD::R1(D),XR(b)
- Refutation
- S(e);
- Try
- Q(H);XS(d)
- Threat
- DUALS(6)
- Refutation
- B(j);XQ(H)
- Try
- Q(H);XP(f)
- Threat
- DUALS(2)
- Vars
- S(e);SBLOCK::B(C)
- R(i);::QAR(H)
- R(i);P_PINQ(H)::R1(B)
- Refutation
- S(d);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- S(d);SBLOCK::R1(B)
- S(d);N_GUARD::QAR(H),XS(e)
- Refutation
- S(d);XQ(H)
- Try
- Actual
- Q(H);P_PINP(c)
- Threat
- QAR(H)
- Vars
- R(b);N_GUARD::R1(D),XR(b)
- S(e);SBLOCK::B(C)
- S(d);SBLOCK::R1(B)
- S(d);OGATE::QAR(H),XS(e)
- S(e);N_SPINP(c),SBLOCK::B(C)
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).