MESON Chess Problem Database
Problem Display
PID: 58579 (4R3/4N3/1n1k2p1/r1R3K1/1P1N2B1/3rp3/2Q3b1/2B5 w - - 0 1)
Gevers, Raymond
1st Prize, Die Schwalbe, 1929
#2
9 + 7
| 35 | L'Italia Scacchistica | 1930 |
| 785 | Het Belgisch Schaakbord (L'Echiquier Belge) | 1954 |
| 5110 | Bekroonde Problemen | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Qxg6#
- 1...Rd2
- 2.Qxg6#
- 1...Rda3
- 2.Qxg6#
- 1...Rb3
- 2.Qxg6#
- 1...Rc3
- 2.Qxg6#
- 1...Rxd4
- 2.Qxg6#
- 1...Ra1
- 2.Sb5#
- 1...Ra2
- 2.Sb5#
- 1...Raa3
- 2.Sb5#
- 1...Ra4
- 2.Sb5#
- 1...Rb5
- 2.Sxb5#
- 1...Rxc5+
- 2.Qxc5#
- 1...Ra6
- 2.Sb5#
- 1...Ra7
- 2.Sb5#
- 1...Ra8
- 2.Sb5#
- 1...Bf1
- 2.Qh2#
- 1...Bh1
- 2.Qh2#
- 1...Bf3
- 2.Qh2#
- 1...Bh3
- 2.Qh2#
- 1...Be4
- 2.Qh2#
- 1...Bd5
- 2.Qh2#
- 1...Bc6
- 2.Qh2#
- 1...Bb7
- 2.Qh2#
- 1...Ba8
- 2.Qh2#
- 1...Sa4
- 2.Sc8#
- 1...Sc4
- 2.Sc8#
- 1...Sd5
- 2.Sc8#
- 1...Sd7
- 2.Sc8#
- 1...Sa8
- 2.Sc8#
- 1...Sc8
- 2.Sxc8#
- 1...e2
- 2.Bf4#
- 1...Rd1
- Tries
- 1.Kh4?
- 1...Rxd4
- 2.Qxg6#
- 1...Rxc5
- 2.Qxc5#
- 1...Bd5
- 2.Qh2#
- 1...Bc6
- 2.Qh2#
- 1...Sd5
- 2.Sc8#
- 1...Rd1
- 2.Qxg6#
- 1...Rd2
- 2.Qxg6#
- 1...Rda3
- 2.Qxg6#
- 1...Rb3
- 2.Qxg6#
- 1...Rc3
- 2.Qxg6#
- 1...Ra1
- 2.Sb5#
- 1...Ra2
- 2.Sb5#
- 1...Raa3
- 2.Sb5#
- 1...Ra4
- 2.Sb5#
- 1...Rb5
- 2.Sxb5#
- 1...Ra6
- 2.Sb5#
- 1...Ra7
- 2.Sb5#
- 1...Ra8
- 2.Sb5#
- 1...Bf1
- 2.Qh2#
- 1...Bh1
- 2.Qh2#
- 1...Bf3
- 2.Qh2#
- 1...Bh3
- 2.Qh2#
- 1...Be4
- 2.Qh2#
- 1...Bb7
- 2.Qh2#
- 1...Ba8
- 2.Qh2#
- 1...Sa4
- 2.Sc8#
- 1...Sc4
- 2.Sc8#
- 1...Sd7
- 2.Sc8#
- 1...Sa8
- 2.Sc8#
- 1...Sc8
- 2.Sxc8#
- 1...e2
- 2.Bf4#
- 1...g5+!
- 1...Rxd4
- 1.Kh6?
- 1...Rxd4
- 2.Qxg6#
- 1...Rxc5
- 2.Qxc5#
- 1...Bd5
- 2.Qh2#
- 1...Bc6
- 2.Qh2#
- 1...Sd5
- 2.Sc8#
- 1...Rd1
- 2.Qxg6#
- 1...Rd2
- 2.Qxg6#
- 1...Rda3
- 2.Qxg6#
- 1...Rb3
- 2.Qxg6#
- 1...Rc3
- 2.Qxg6#
- 1...Ra1
- 2.Sb5#
- 1...Ra2
- 2.Sb5#
- 1...Raa3
- 2.Sb5#
- 1...Ra4
- 2.Sb5#
- 1...Rb5
- 2.Sxb5#
- 1...Ra6
- 2.Sb5#
- 1...Ra7
- 2.Sb5#
- 1...Ra8
- 2.Sb5#
- 1...Bf1
- 2.Qh2#
- 1...Bh1
- 2.Qh2#
- 1...Bf3
- 2.Qh2#
- 1...Bh3
- 2.Qh2#
- 1...Be4
- 2.Qh2#
- 1...Bb7
- 2.Qh2#
- 1...Ba8
- 2.Qh2#
- 1...Sa4
- 2.Sc8#
- 1...Sc4
- 2.Sc8#
- 1...Sd7
- 2.Sc8#
- 1...Sa8
- 2.Sc8#
- 1...Sc8
- 2.Sxc8#
- 1...e2
- 2.Bf4#
- 1...g5!
- 1...Rxd4
- 1.Bb2?
- 1...Rxc5+
- 2.Qxc5#
- 1...Rxd4
- 2.Qxg6#
- 1...Bd5
- 2.Qh2#
- 1...Bc6
- 2.Qh2#
- 1...Sd5
- 2.Sc8#
- 1...Rd1
- 2.Qxg6#
- 1...Rd2
- 2.Qxg6#
- 1...Rda3
- 2.Qxg6#
- 1...Rb3
- 2.Qxg6#
- 1...Rc3
- 2.Qxg6#
- 1...Ra1
- 2.Sb5#
- 1...Ra2
- 2.Sb5#
- 1...Raa3
- 2.Sb5#
- 1...Ra4
- 2.Sb5#
- 1...Rb5
- 2.Sxb5#
- 1...Ra6
- 2.Sb5#
- 1...Ra7
- 2.Sb5#
- 1...Ra8
- 2.Sb5#
- 1...Bf1
- 2.Qh2#
- 1...Bh1
- 2.Qh2#
- 1...Bf3
- 2.Qh2#
- 1...Bh3
- 2.Qh2#
- 1...Be4
- 2.Qh2#
- 1...Bb7
- 2.Qh2#
- 1...Ba8
- 2.Qh2#
- 1...Sa4
- 2.Sc8#
- 1...Sc4
- 2.Sc8#
- 1...Sd7
- 2.Sc8#
- 1...Sa8
- 2.Sc8#
- 1...Sc8
- 2.Sxc8#
- 1...e2!
- 1...Rxc5+
- 1.Ba3?
- 1...Rxc5+
- 2.Qxc5#
- 1...Rdxa3
- 2.Qxg6#
- 1...Rxd4
- 2.Qxg6#
- 1...Raxa3
- 2.Sb5#
- 1...Bd5
- 2.Qh2#
- 1...Bc6
- 2.Qh2#
- 1...Sd5
- 2.Sc8#
- 1...Rd1
- 2.Qxg6#
- 1...Rd2
- 2.Qxg6#
- 1...Rb3
- 2.Qxg6#
- 1...Rc3
- 2.Qxg6#
- 1...Ra4
- 2.Sb5#
- 1...Rb5
- 2.Sxb5#
- 1...Ra6
- 2.Sb5#
- 1...Ra7
- 2.Sb5#
- 1...Ra8
- 2.Sb5#
- 1...Bf1
- 2.Qh2#
- 1...Bh1
- 2.Qh2#
- 1...Bf3
- 2.Qh2#
- 1...Bh3
- 2.Qh2#
- 1...Be4
- 2.Qh2#
- 1...Bb7
- 2.Qh2#
- 1...Ba8
- 2.Qh2#
- 1...Sa4
- 2.Sc8#
- 1...Sc4
- 2.Sc8#
- 1...Sd7
- 2.Sc8#
- 1...Sa8
- 2.Sc8#
- 1...Sc8
- 2.Sxc8#
- 1...e2!
- 1...Rxc5+
- 1.Bxe3?
- threat
- 2.Bf4#
- 1...Rxc5+
- 2.Qxc5#
- 1...Rxd4
- 2.Qxg6#
- 1...Sd5
- 2.Sc8#
- 1...Sc4
- 2.Sc8#
- 1...Sd7
- 2.Sc8#
- 1...Rxe3!
- threat
- 1.Bh3?
- 1...Rxc5+
- 2.Qxc5#
- 1...Rxd4
- 2.Qxg6#
- 1...Bd5
- 2.Qh2#
- 1...Bc6
- 2.Qh2#
- 1...Sd5
- 2.Sc8#
- 1...e2
- 2.Bf4#
- 1...Rd1
- 2.Qxg6#
- 1...Rd2
- 2.Qxg6#
- 1...Rda3
- 2.Qxg6#
- 1...Rb3
- 2.Qxg6#
- 1...Rc3
- 2.Qxg6#
- 1...Ra1
- 2.Sb5#
- 1...Ra2
- 2.Sb5#
- 1...Raa3
- 2.Sb5#
- 1...Ra4
- 2.Sb5#
- 1...Rb5
- 2.Sxb5#
- 1...Ra6
- 2.Sb5#
- 1...Ra7
- 2.Sb5#
- 1...Ra8
- 2.Sb5#
- 1...Bf1
- 2.Qh2#
- 1...Bh1
- 2.Qh2#
- 1...Bf3
- 2.Qh2#
- 1...Be4
- 2.Qh2#
- 1...Bb7
- 2.Qh2#
- 1...Ba8
- 2.Qh2#
- 1...Sa4
- 2.Sc8#
- 1...Sc4
- 2.Sc8#
- 1...Sd7
- 2.Sc8#
- 1...Sa8
- 2.Sc8#
- 1...Sc8
- 2.Sxc8#
- 1...Bxh3!
- 1...Rxc5+
- 1.Rd5+?
- 1...Bxd5
- 2.Qh2#
- 1...Sxd5
- 2.Sc8#
- 1...Rxd5+!
- 1...Bxd5
- 1.Rd8+?
- 1...Sd7
- 2.Sc8#
- 2.Rxd7#
- 1...Kxe7!
- 1...Sd7
- 1.Qf2?
- threat
- 2.Qg3#
- 2.Qf4#
- 2.Qf6#
- 1...Rxd4
- 2.Qf6#
- 1...exf2
- 2.Bf4#
- 1...Bd5
- 2.Qg3#
- 2.Qh2#
- 2.Qf4#
- 1...Bc6
- 2.Qg3#
- 2.Qh2#
- 2.Qf4#
- 1...Sd5
- 2.Sc8#
- 1...e2
- 2.Bf4#
- 2.Qf4#
- 2.Qf6#
- 1...Bf3
- 2.Qg3#
- 2.Qh2#
- 1...Sc4
- 2.Sc8#
- 2.Qf6#
- 1...Sd7
- 2.Sc8#
- 1...Rxc5+!
- threat
- 1.Qxg2?
- threat
- 2.Qc6#
- 2.Qh2#
- 2.Qg3#
- 1...Rxd4
- 2.Qc6#
- 1...Sd5
- 2.Sc8#
- 2.Qxd5#
- 1...e2
- 2.Bf4#
- 2.Qc6#
- 1...Rd2
- 2.Qc6#
- 2.Qg3#
- 1...Ra2
- 2.Sb5#
- 2.Qc6#
- 2.Qg3#
- 1...Sc4
- 2.Sc8#
- 2.Qd5#
- 2.Qc6#
- 1...Sd7
- 2.Sc8#
- 2.Qd5#
- 2.Qc6#
- 1...Rxc5+!
- threat
- 1.Kh4?
- Keys
- 1.Sg8!
- 1...Rxc5+
- 2.Qxc5#
- 1...Rxd4
- 2.Qxg6#
- 1...Bc6
- 2.Qh2#
- 1...Rd1
- 2.Qxg6#
- 1...Rd2
- 2.Qxg6#
- 1...Rda3
- 2.Qxg6#
- 1...Rb3
- 2.Qxg6#
- 1...Rc3
- 2.Qxg6#
- 1...Ra1
- 2.Sb5#
- 1...Ra2
- 2.Sb5#
- 1...Raa3
- 2.Sb5#
- 1...Ra4
- 2.Sb5#
- 1...Rb5
- 2.Sxb5#
- 1...Ra6
- 2.Sb5#
- 1...Ra7
- 2.Sb5#
- 1...Ra8
- 2.Sb5#
- 1...Bf1
- 2.Qh2#
- 1...Bh1
- 2.Qh2#
- 1...Bf3
- 2.Qh2#
- 1...Bh3
- 2.Qh2#
- 1...Be4
- 2.Qh2#
- 1...Bd5
- 2.Qh2#
- 1...Bb7
- 2.Qh2#
- 1...Ba8
- 2.Qh2#
- 1...Sa4
- 2.Rd8#
- 1...Sc4
- 2.Rd8#
- 1...Sd5
- 2.Rc6#
- 1...Sd7
- 2.Re6#
- 1...Sa8
- 2.Rd8#
- 1...Sc8
- 2.Rd8#
- 1...e2
- 2.Bf4#
- 1...Rxc5+
- 1.Sg8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(b);OGATE::QAR(B),XP(g)
- R(b);OGATE,XS(D)::QAR(B),XP(g)
- R(d);N_GUARD,N_PINR(F)::S(D)
- R(d);N_GUARD::S(D),XR(d)
- R(d);CHECK,OGATE,XR(F)::QAB1(B),XR(d)
- B(a);OGATE::QAB(B)
- B(a);N_PINR(F),OGATE::QAB(B)
- S(e);N_GUARD::S(H)
- S(e);N_GUARD,N_PINR(F)::S(H)
- S(e);N_GUARD::S(H),XS(e)
- P(c);OGATE::B(A)
- Tries
- Try
- K(G);N_SPINR(F),S_FLIGHT
- Vars
- R(b);OGATE,P_PINB(E),XS(D)::QAR(B),XP(g)
- R(d);OGATE,XR(F)::QAB1(B),XR(d)
- B(a);OGATE::QAB(B)
- S(e);N_GUARD::S(H)
- R(b);OGATE::QAR(B),XP(g)
- R(d);N_GUARD::S(D)
- R(d);N_GUARD::S(D),XR(d)
- S(e);N_GUARD::S(H),XS(e)
- P(c);OGATE::B(A)
- Refutation
- P(g);CHECK
- Try
- K(G);N_SPINR(F),S_FLIGHT
- Vars
- R(b);OGATE,XS(D)::QAR(B),XP(g)
- R(d);OGATE,XR(F)::QAB1(B),XR(d)
- B(a);OGATE::QAB(B)
- S(e);N_GUARD::S(H)
- R(b);OGATE::QAR(B),XP(g)
- R(d);N_GUARD::S(D)
- R(d);N_GUARD::S(D),XR(d)
- S(e);N_GUARD::S(H),XS(e)
- P(c);OGATE::B(A)
- Refutation
- P(g);
- Try
- B(A);
- Vars
- R(d);CHECK,OGATE,XR(F)::QAB1(B),XR(d)
- R(b);OGATE,XS(D)::QAR(B),XP(g)
- B(a);N_PINR(F),OGATE::QAB(B)
- B(a);OGATE::QAB(B)
- S(e);N_GUARD,N_PINR(F)::S(H)
- R(b);OGATE::QAR(B),XP(g)
- R(d);N_GUARD,N_PINR(F)::S(D)
- R(d);N_GUARD::S(D),XR(d)
- S(e);N_GUARD::S(H)
- S(e);N_GUARD::S(H),XS(e)
- Refutation
- P(c);
- Try
- B(A);
- Vars
- R(d);CHECK,OGATE,XR(F)::QAB1(B),XR(d)
- R(b);OGATE,XB(A)::QAR(B),XP(g)
- R(b);OGATE,XS(D)::QAR(B),XP(g)
- R(d);N_GUARD,N_PINR(F),XB(A)::S(D)
- B(a);N_PINR(F),OGATE::QAB(B)
- B(a);OGATE::QAB(B)
- S(e);N_GUARD,N_PINR(F)::S(H)
- R(b);OGATE::QAR(B),XP(g)
- R(d);N_GUARD,N_PINR(F)::S(D)
- R(d);N_GUARD::S(D),XR(d)
- S(e);N_GUARD::S(H)
- S(e);N_GUARD::S(H),XS(e)
- Refutation
- P(c);
- Try
- B(A);XP(c)
- Threat
- B(A)
- Vars
- R(d);CHECK,OGATE,XR(F)::QAB1(B),XR(d)
- R(b);OGATE,XS(D)::QAR(B),XP(g)
- S(e);N_GUARD,N_PINR(F)::S(H)
- S(e);N_GUARD::S(H)
- Refutation
- R(b);XB(A)
- Try
- B(E);
- Vars
- R(d);CHECK,OGATE,XR(F)::QAB1(B),XR(d)
- R(b);OGATE,XS(D)::QAR(B),XP(g)
- B(a);N_PINR(F),OGATE::QAB(B)
- B(a);OGATE::QAB(B)
- S(e);N_GUARD,N_PINR(F)::S(H)
- P(c);OGATE::B(A)
- R(b);OGATE::QAR(B),XP(g)
- R(d);N_GUARD,N_PINR(F)::S(D)
- R(d);N_GUARD::S(D),XR(d)
- S(e);N_GUARD::S(H)
- S(e);N_GUARD::S(H),XS(e)
- Refutation
- B(a);XB(E)
- Try
- R(F);CHECK
- Vars
- B(a);OGATE,XR(F)::QAB(B)
- S(e);SBLOCK,XR(F)::S(H)
- Refutation
- R(d);CHECK,XR(F)
- Try
- R(I);CHECK
- Refutation
- K(f);S_FLIGHT,XS(H)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- R(b);XS(D)::QAR2(B)
- P(c);OGATE,XQ(B)::B(A)
- S(e);N_GUARD,N_PINR(F)::S(H)
- S(e);N_GUARD::S(H)
- Refutation
- R(d);CHECK,XR(F)
- Try
- Q(B);XB(a)
- Threat
- DUALS(3)
- Vars
- R(b);XS(D)::QAR1(B)
- Refutation
- R(d);CHECK,XR(F)
- Try
- Actual
- S(H);
- Vars
- R(d);CHECK,OGATE,XR(F)::QAB1(B),XR(d)
- R(b);OGATE,XS(D)::QAR(B),XP(g)
- B(a);OGATE::QAB(B)
- R(b);OGATE::QAR(B),XP(g)
- R(d);N_GUARD,N_PINR(F)::S(D)
- R(d);N_GUARD::S(D),XR(d)
- B(a);N_PINR(F),OGATE::QAB(B)
- S(e);N_GUARD::R(I)
- S(e);N_PINR(F),SBLOCK::R1(F)
- S(e);SBLOCK::R1(I)
- P(c);OGATE::B(A)
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).