MESON Chess Problem Database
Problem Display
PID: 204431 (5nrr/6bp/2pN1R1n/Kpp1k3/1R1q3B/3P4/BQ2N3/8 w - - 0 1)
Cristoforatos, Gherasim
Revista de Sah, 1925
#2
9 + 11
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qxb2
- 2.Re4#
- 1...Qc3
- 2.Qxc3#
- 1...Sg4
- 2.Sf7#
- 1...Sf5
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...Se6
- 2.Rxe6#
- 1...Sg6
- 2.Re6#
- 1...Sd7
- 2.Re6#
- 1...cxb4
- 2.Qxd4#
- 1...c4
- 2.Qxd4#
- 1...Qxb2
- Tries
- 1.Ka6?
- 1...Qxb2
- 2.Re4#
- 1...cxb4
- 2.Qxd4#
- 1...Se6
- 2.Rxe6#
- 1...c4
- 2.Qxd4#
- 1...Qc3
- 2.Re4#
- 2.Qxc3#
- 1...Sg4
- 2.Sf7#
- 1...Sf5
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...Sg6
- 2.Re6#
- 1...Sd7
- 2.Re6#
- 1...Bxf6!
- 1...Qxb2
- 1.Sc4+?
- 1...Kd5
- 2.Rd6#
- 1...bxc4!
- 1...Kd5
- 1.Bb3?
- 1...Qxb2
- 2.Re4#
- 1...cxb4
- 2.Qxd4#
- 1...Se6
- 2.Rxe6#
- 1...c4
- 2.Qxd4#
- 1...Sf5
- 2.Sf7#
- 1...Qc3
- 2.Qxc3#
- 1...Sg4
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...Sg6
- 2.Re6#
- 1...Sd7
- 2.Re6#
- 1...Bxf6!
- 1...Qxb2
- 1.Rxb5?
- threat
- 2.Rxc5#
- 2.Qxd4#
- 1...Qc3+
- 2.Qxc3#
- 1...Qxb2
- 2.Rxc5#
- 1...Bxf6
- 2.Qxd4#
- 1...Se6
- 2.Rxe6#
- 1...Sf5
- 2.Sf7#
- 2.Rxc5#
- 1...Sd7
- 2.Re6#
- 2.Qxd4#
- 1...cxb5!
- threat
- 1.Rf5+?
- 1...Sxf5
- 2.Sf7#
- 1...Kxd6!
- 1...Sxf5
- 1.Qa1?
- 1...Qxa1
- 2.Re4#
- 1...cxb4
- 2.Qxd4#
- 1...Se6
- 2.Rxe6#
- 1...c4
- 2.Qxd4#
- 1...Sf5
- 2.Sf7#
- 1...Qb2
- 2.Re4#
- 2.Qxb2#
- 1...Qc3
- 2.Qxc3#
- 1...Sg4
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...Sg6
- 2.Re6#
- 1...Sd7
- 2.Re6#
- 1...Bxf6!
- 1...Qxa1
- 1.Ka6?
- Keys
- 1.Bg5!
- 1...Qxb2
- 2.Re4#
- 1...Bxf6
- 2.Bf4#
- 1...cxb4
- 2.Qxd4#
- 1...Se6
- 2.Rxe6#
- 1...c4
- 2.Qxd4#
- 1...Sf5
- 2.Sf7#
- 1...Qc3
- 2.Qxc3#
- 1...Sg4
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...Sg6
- 2.Re6#
- 1...Sd7
- 2.Re6#
- 1...Qxb2
- 1.Bg5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(a);N_SPINQ(a),OGATE,XQ(B)::R1(E)
- Q(a);OGATEB,P_PINR(E)::QAB(B),XQ(a)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- S(i);N_GUARD::R1(I),XS(i)
- S(i);N_GUARD::R1(I)
- P(c);N_GUARD,XR(E)::QAB1(B),XQ(a)
- P(c);N_GUARD::QAB1(B),XQ(a)
- Tries
- Try
- K(G);P-FLIGHT
- Vars
- Q(a);N_SPINQ(a),OGATE,XQ(B)::R1(E)
- P(c);N_GUARD,XR(E)::QAB1(B),XQ(a)
- S(i);N_GUARD::R1(I),XS(i)
- P(c);N_GUARD::QAB1(B),XQ(a)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- S(i);N_GUARD::R1(I)
- Refutation
- B(g);XR(I)
- Try
- S(H);CHECK
- Vars
- K(d);N_SPINQ(a),P-FLIGHT::R1(I)
- Refutation
- P(b);XS(H)
- Try
- B(A);
- Vars
- Q(a);N_SPINQ(a),OGATE,XQ(B)::R1(E)
- P(c);N_GUARD,XR(E)::QAB1(B),XQ(a)
- S(i);N_GUARD::R1(I),XS(i)
- P(c);N_GUARD::QAB1(B),XQ(a)
- S(f);N_GUARD::S(H)
- Q(a);OGATEB,P_PINR(E)::QAB(B),XQ(a)
- S(f);N_GUARD::S(H),XS(f)
- S(i);N_GUARD::R1(I)
- Refutation
- B(g);XR(I)
- Try
- R(E);P_PINP(c),XP(b)
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,OGATEB::QAB(B),XQ(a)
- Q(a);N_SPINQ(a),XQ(B)::R(E),XP(c)
- B(g);XR(I)::QAB1(B),XQ(a)
- S(i);N_GUARD::R1(I),XS(i)
- Refutation
- P(e);N_SPINP(c),XR(E)
- Try
- R(I);CHECK
- Vars
- S(f);SBLOCK,XR(I)::S(H)
- Refutation
- K(d);N_SPINQ(a),S_FLIGHT,XS(H)
- Try
- Q(B);
- Vars
- Q(a);N_SPINQ(a),OGATE,P_PINB(A),XQ(B)::R1(E)
- P(c);N_GUARD,XR(E)::QAB1(B),XQ(a)
- S(i);N_GUARD::R1(I),XS(i)
- P(c);N_GUARD::QAB1(B),XQ(a)
- S(f);N_GUARD::S(H)
- Q(a);OGATEB,P_PINR(E)::QAB(B),XQ(a)
- S(f);N_GUARD::S(H),XS(f)
- S(i);N_GUARD::R1(I)
- Refutation
- B(g);XR(I)
- Try
- Actual
- B(F);
- Vars
- Q(a);N_SPINQ(a),OGATE,XQ(B)::R1(E)
- B(g);SBLOCK,XR(I)::B(F)
- P(c);N_GUARD,XR(E)::QAB1(B),XQ(a)
- S(i);N_GUARD::R1(I),XS(i)
- P(c);N_GUARD::QAB1(B),XQ(a)
- S(f);N_GUARD::S(H)
- Q(a);OGATEB,P_PINR(E)::QAB(B),XQ(a)
- S(f);N_GUARD::S(H),XS(f)
- S(i);N_GUARD::R1(I)
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).