MESON Chess Problem Database
Problem Display
PID: 170062 (7q/B2B4/3p2bp/p7/1kNRr1P1/pNp2Q1K/P7/1nR3b1 w - - 0 1)
Peris Pardo, Julio
Comm., Enroque!!, 1948
#2
10 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Qb7#
- 1...Re2
- 2.Qb7#
- 1...Re3
- 2.Se5#
- 1...Rf4
- 2.Qb7#
- 1...Rxg4
- 2.Qb7#
- 1...Re5
- 2.Se3#
- 1...Re6
- 2.Qb7#
- 1...Re7
- 2.Qb7#
- 1...Re8
- 2.Qb7#
- 1...Sd2
- 2.Qxc3#
- 1...d5
- 2.Bc5#
- 1...Re1
- Tries
- 1.Se3+?
- 1...Rxd4
- 2.Qb7#
- 1...Qxd4!
- 1...Rxd4
- 1.Se5+?
- 1...Rxd4
- 2.Qb7#
- 1...Bxd4!
- 1...Rxd4
- 1.Se3+?
- Keys
- 1.Sbd2!
- threat
- 2.Rxb1#
- 1...Rxd4
- 2.Qb7#
- 1...Rxg4
- 2.Qb7#
- 1...Sxd2
- 2.Qxc3#
- 1...Re1
- 2.Qb7#
- 1...Re2
- 2.Qb7#
- 1...Re3
- 2.Se5#
- 1...Rf4
- 2.Qb7#
- 1...Re5
- 2.Se3#
- 1...Re6
- 2.Qb7#
- 1...Re7
- 2.Qb7#
- 1...Re8
- 2.Qb7#
- 1...c2
- 2.Qb3#
- threat
- 1.Sbd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(f);OGATE::QAR(D)
- R(f);N_GUARD,P_PINQ(D),S_CUTB(b)::R(G)+S(F)
- R(f);OGATE,XP(H)::QAR(D)
- R(f);N_GUARD,S_CUTQ(k)::R(G)+S(F)
- S(a);N_GUARD::QAB1(D),XP(d)
- P(h);N_GUARD::B(I)
- Tries
- Try
- S(F);CHECK
- Vars
- R(f);OGATE,XR(G)::QAR(D)
- Refutation
- Q(k);XR(G)
- Try
- S(F);CHECK
- Vars
- R(f);OGATE,XR(G)::QAR(D)
- Refutation
- B(b);XR(G)
- Try
- Actual
- S(C);
- Threat
- R(A),XS(a)
- Vars
- R(f);OGATE,XR(G)::QAR(D)
- R(f);OGATE,XP(H)::QAR(D)
- S(a);N_GUARD,XS(C)::QAB1(D),XP(d)
- R(f);OGATE::QAR(D)
- R(f);N_GUARD,P_PINQ(D),S_CUTB(b)::R(G)+S(F)
- R(f);N_GUARD,S_CUTQ(k)::R(G)+S(F)
- P(d);OGATE::QAR1(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).