MESON Chess Problem Database
Problem Display
PID: 6714 (1Q3n2/8/6pR/P1k1NP1b/n1p3pR/8/3PN1Bp/7K w - - 0 1)
Gevers, Raymond
1st Prize, BCPS, 1933
#2
10 + 8
| 785 | Het Belgisch Schaakbord (L'Echiquier Belge) | 1955 |
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
| 5110 | Bekroonde Problemen | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Sb2
- 2.Qb6#
- 1...Sc3
- 2.Qb6#
- 1...Sb6
- 2.Qxb6#
- 1...Se6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c3
- 2.d4#
- 1...g3
- 2.Rxc4#
- 1...gxf5
- 2.Rc6#
- 1...g5
- 2.Rc6#
- 1...Sb2
- Tries
- 1.Kxh2?
- 1...gxf5
- 2.Rc6#
- 1...Sb6
- 2.Qxb6#
- 1...Sb2
- 2.Qb6#
- 1...Sc3
- 2.Qb6#
- 1...Se6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c3
- 2.d4#
- 1...g5
- 2.Rc6#
- 1...g3+!
- 1...gxf5
- 1.Sc6?
- threat
- 2.Qe5#
- 2.Qb4#
- 1...c3
- 2.Qb4#
- 1...Sc3
- 2.Qb4#
- 1...Sd7
- 2.Qb4#
- 1...Sb6!
- threat
- 1.Bf3?
- 1...gxf5
- 2.Rc6#
- 1...Sb6
- 2.Qxb6#
- 1...Se6
- 2.Sd7#
- 1...Sb2
- 2.Qb6#
- 1...Sc3
- 2.Qb6#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c3
- 2.d4#
- 1...g3
- 2.Rxc4#
- 1...g5
- 2.Rc6#
- 1...gxf3!
- 1...gxf5
- 1.Be4?
- 1...gxf5
- 2.Rc6#
- 1...Sb6
- 2.Qxb6#
- 1...Se6
- 2.Sd7#
- 1...Sb2
- 2.Qb6#
- 1...Sc3
- 2.Qb6#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c3
- 2.d4#
- 1...g5
- 2.Rc6#
- 1...g3!
- 1...gxf5
- 1.Rxh2?
- 1...gxf5
- 2.Rc6#
- 1...Sb6
- 2.Qxb6#
- 1...Se6
- 2.Sd7#
- 1...Sb2
- 2.Qb6#
- 1...Sc3
- 2.Qb6#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c3
- 2.d4#
- 1...g5
- 2.Rc6#
- 1...g3!
- 1...gxf5
- 1.Rxg4?
- threat
- 2.Rxc4#
- 1...Sb6
- 2.Qxb6#
- 1...Sb2
- 2.Qb6#
- 1...c3
- 2.Sd3#
- 2.Rc4#
- 2.Qb4#
- 2.d4#
- 1...Bxg4!
- threat
- 1.R4xh5?
- 1...gxf5
- 2.Rc6#
- 1...gxh5
- 2.Rc6#
- 1...Sb6
- 2.Qxb6#
- 1...Se6
- 2.Sd7#
- 1...Sb2
- 2.Qb6#
- 1...Sc3
- 2.Qb6#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c3
- 2.d4#
- 1...g5
- 2.Rc6#
- 1...g3!
- 1...gxf5
- 1.Rxg6?
- threat
- 2.Rc6#
- 1...Sxg6
- 2.Sd7#
- 1...Sb6
- 2.Qxb6#
- 1...Se6
- 2.Sd7#
- 1...Bxg6!
- threat
- 1.d3?
- threat
- 2.d4#
- 1...Sb6
- 2.Qxb6#
- 1...Se6
- 2.Sd7#
- 1...cxd3!
- threat
- 1.fxg6?
- 1...Sxg6
- 2.Sd7#
- 1...Sb6
- 2.Qxb6#
- 1...Se6
- 2.Sd7#
- 1...Sb2
- 2.Qb6#
- 1...Sc3
- 2.Qb6#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c3
- 2.d4#
- 1...g3
- 2.Rxc4#
- 1...Bxg6!
- 1...Sxg6
- 1.f6?
- 1...Sb6
- 2.Qxb6#
- 1...Se6
- 2.Sd7#
- 1...Sb2
- 2.Qb6#
- 1...Sc3
- 2.Qb6#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c3
- 2.d4#
- 1...g3
- 2.Rxc4#
- 1...g5!
- 1...Sb6
- 1.Kxh2?
- Keys
- 1.Sd4!
- 1...Kxd4
- 2.Qd6#
- 1...gxf5
- 2.Qd6#
- 1...Sb6
- 2.Qxb6#
- 1...Se6
- 2.Sxe6#
- 1...Sb2
- 2.Qb6#
- 1...Sc3
- 2.Qb6#
- 1...Sd7
- 2.Se6#
- 1...Sh7
- 2.Se6#
- 1...c3
- 2.Sb3#
- 1...g3
- 2.Qxf8#
- 1...g5
- 2.Qd6#
- 1...Kxd4
- 1.Sd4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::QAB1(J)
- S(b);N_GUARD::QAB1(J),XS(b)
- S(h);N_GUARD::S(G)
- S(h);N_GUARD::S(G),XS(h)
- P(c);N_GUARD::P(B)
- P(d);OGATE::R1(E),XP(c)
- P(g);OGATE,XP(H)::R1(I)
- P(g);OGATE::R1(I)
- Tries
- Try
- K(A);P-FLIGHT,XP(a)
- Vars
- P(g);OGATE,XP(H)::R1(I)
- S(b);N_GUARD::QAB1(J),XS(b)
- S(b);N_GUARD::QAB1(J)
- S(h);N_GUARD::S(G)
- S(h);N_GUARD::S(G),XS(h)
- P(c);N_GUARD::P(B)
- P(g);OGATE::R1(I)
- Refutation
- P(d);CHECK
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- P(c);::QAB1(J)
- S(b);::QAB1(J)
- S(h);::QAB1(J)
- Refutation
- S(b);
- Try
- B(D);
- Vars
- P(g);OGATE,XP(H)::R1(I)
- S(b);N_GUARD::QAB1(J),XS(b)
- S(h);N_GUARD::S(G)
- S(b);N_GUARD::QAB1(J)
- S(h);N_GUARD::S(G),XS(h)
- P(c);N_GUARD::P(B)
- P(d);OGATE::R1(E),XP(c)
- P(g);OGATE::R1(I)
- Refutation
- P(d);XB(D)
- Try
- B(D);
- Vars
- P(g);OGATE,XP(H)::R1(I)
- S(b);N_GUARD::QAB1(J),XS(b)
- S(h);N_GUARD::S(G)
- S(b);N_GUARD::QAB1(J)
- S(h);N_GUARD::S(G),XS(h)
- P(c);N_GUARD::P(B)
- P(g);OGATE::R1(I)
- Refutation
- P(d);
- Try
- R(E);XP(a)
- Vars
- P(g);OGATE,XP(H)::R1(I)
- S(b);N_GUARD::QAB1(J),XS(b)
- S(h);N_GUARD::S(G)
- S(b);N_GUARD::QAB1(J)
- S(h);N_GUARD::S(G),XS(h)
- P(c);N_GUARD::P(B)
- P(g);OGATE::R1(I)
- Refutation
- P(d);
- Try
- R(E);XP(d)
- Threat
- R1(E),XP(c)
- Vars
- S(b);N_GUARD::QAB1(J),XS(b)
- S(b);N_GUARD::QAB1(J)
- Refutation
- B(f);XR(E)
- Try
- R(E);XB(f)
- Vars
- P(g);OGATE,XP(H)::R1(I)
- P(g);OGATE,XR(E)::R1(I)
- S(b);N_GUARD::QAB1(J),XS(b)
- S(h);N_GUARD::S(G)
- S(b);N_GUARD::QAB1(J)
- S(h);N_GUARD::S(G),XS(h)
- P(c);N_GUARD::P(B)
- P(g);OGATE::R1(I)
- Refutation
- P(d);
- Try
- R(I);XP(g)
- Threat
- R1(I)
- Vars
- S(h);N_GUARD,XR(I)::S(G)
- S(b);N_GUARD::QAB1(J),XS(b)
- S(h);N_GUARD::S(G)
- Refutation
- B(f);XR(I)
- Try
- P(B);
- Threat
- P(B)
- Vars
- S(b);N_GUARD::QAB1(J),XS(b)
- S(h);N_GUARD::S(G)
- Refutation
- P(c);XP(B)
- Try
- P(H);XP(g)
- Vars
- S(h);N_GUARD,XP(H)::S(G)
- S(b);N_GUARD::QAB1(J),XS(b)
- S(h);N_GUARD::S(G)
- S(b);N_GUARD::QAB1(J)
- S(h);N_GUARD::S(G),XS(h)
- P(c);N_GUARD::P(B)
- P(d);OGATE::R1(E),XP(c)
- Refutation
- B(f);XP(H)
- Try
- P(H);
- Vars
- S(b);N_GUARD::QAB1(J),XS(b)
- S(h);N_GUARD::S(G)
- S(b);N_GUARD::QAB1(J)
- S(h);N_GUARD::S(G),XS(h)
- P(c);N_GUARD::P(B)
- P(d);OGATE::R1(E),XP(c)
- Refutation
- P(g);
- Try
- Actual
- S(C);
- Vars
- K(e);P_SPINP(d),S_FLIGHT,XS(C)::QAR2(J)
- P(g);XP(H)::QAB1(J)
- S(b);N_GUARD::QAB1(J),XS(b)
- S(h);N_GUARD::S(C),XS(h)
- S(b);N_GUARD::QAB1(J)
- S(h);N_GUARD::S(C)
- P(c);N_GUARD::S(C)
- P(d);::QAB(J),XS(h)
- P(g);::QAB1(J)
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).