MESON Chess Problem Database
Problem Display
PID: 124540 (8/3p1p1B/3K1Pn1/p3pQPp/R1N1p2P/3k2P1/1B3RP1/3r4 w - - 0 1)
Goldschmidt, Josef
2nd Prize, Pesti Hirlap, 1925
#2
12 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rd2#
- 1...Rb1
- 2.Rd2#
- 1...Rc1
- 2.Rd2#
- 1...Re1
- 2.Rd2#
- 1...Rf1
- 2.Rd2#
- 1...Rg1
- 2.Rd2#
- 1...Rh1
- 2.Rd2#
- 1...Rd2
- 2.Rxd2#
- 1...Sf4
- 2.Qxe4#
- 1...Sxh4
- 2.Qxe4#
- 1...Se7
- 2.Qxe4#
- 2.Qf3#
- 1...Sf8
- 2.Qxe4#
- 2.Qf3#
- 1...Sh8
- 2.Qxe4#
- 2.Qf3#
- 1...Ra1
- Tries
- 1.Kc5?
- threat
- 2.Ra3#
- 2.Qxd7#
- 1...Rd2
- 2.Rxd2#
- 1...Ra1
- 2.Rd2#
- 2.Qxd7#
- 1...Rc1
- 2.Rd2#
- 2.Qxd7#
- 1...Sf4
- 2.Ra3#
- 2.Qxe4#
- 1...Se7
- 2.Ra3#
- 2.Qxe4#
- 2.Qf3#
- 1...Sf8
- 2.Ra3#
- 2.Qxe4#
- 2.Qf3#
- 1...d5
- 2.Ra3#
- 1...d6+!
- threat
- 1.Kxd7?
- 1...Sxh4
- 2.Qxe4#
- 1...Rd2
- 2.Rxd2#
- 1...Ra1
- 2.Rd2#
- 1...Rb1
- 2.Rd2#
- 1...Rc1
- 2.Rd2#
- 1...Re1
- 2.Rd2#
- 1...Rf1
- 2.Rd2#
- 1...Rg1
- 2.Rd2#
- 1...Rh1
- 2.Rd2#
- 1...Sf4
- 2.Qxe4#
- 1...Se7
- 2.Qxe4#
- 2.Qf3#
- 1...Sh8
- 2.Qxe4#
- 2.Qf3#
- 1...Sf8+!
- 1...Sxh4
- 1.Se3?
- threat
- 2.Ra3#
- 2.Qxe4#
- 1...Ra1
- 2.Qxe4#
- 1...Rc1
- 2.Qxe4#
- 1...Kxe3+!
- threat
- 1.Sxa5?
- threat
- 2.Ra3#
- 2.Qxe4#
- 1...Rd2
- 2.Qxe4#
- 1...Re1
- 2.Ra3#
- 1...Ra1
- 2.Qxe4#
- 1...Rc1
- 2.Qxe4#
- 1...Ke3+!
- threat
- 1.Sxe5+?
- 1...Sxe5
- 2.Qxe4#
- 1...Ke3+!
- 1...Sxe5
- 1.Sb6?
- threat
- 2.Ra3#
- 2.Qxe4#
- 1...Rd2
- 2.Qxe4#
- 1...Re1
- 2.Ra3#
- 1...Ra1
- 2.Qxe4#
- 1...Rc1
- 2.Qxe4#
- 1...Ke3+!
- threat
- 1.Ba1?
- 1...Sxh4
- 2.Qxe4#
- 1...Rd2
- 2.Rxd2#
- 1...Re1
- 2.Rd2#
- 1...Rb1
- 2.Rd2#
- 1...Rc1
- 2.Rd2#
- 1...Rf1
- 2.Rd2#
- 1...Rg1
- 2.Rd2#
- 1...Rh1
- 2.Rd2#
- 1...Sf4
- 2.Qxe4#
- 1...Se7
- 2.Qxe4#
- 2.Qf3#
- 1...Sf8
- 2.Qxe4#
- 2.Qf3#
- 1...Sh8
- 2.Qxe4#
- 2.Qf3#
- 1...Rxa1!
- 1...Sxh4
- 1.Bxe5?
- 1...Sxh4
- 2.Qxe4#
- 1...Rd2
- 2.Rxd2#
- 1...Re1
- 2.Rd2#
- 1...Ra1
- 2.Rd2#
- 1...Rb1
- 2.Rd2#
- 1...Rc1
- 2.Rd2#
- 1...Rf1
- 2.Rd2#
- 1...Rg1
- 2.Rd2#
- 1...Rh1
- 2.Rd2#
- 1...Sf4
- 2.Qxe4#
- 1...Se7
- 2.Qxe4#
- 2.Qf3#
- 1...Sf8
- 2.Qxe4#
- 2.Qf3#
- 1...Sh8
- 2.Qxe4#
- 2.Qf3#
- 1...Sxe5!
- 1...Sxh4
- 1.Bxg6?
- threat
- 2.Qxe4#
- 2.Qf3#
- 1...Rd2
- 2.Rxd2#
- 2.Qxe4#
- 1...Re1
- 2.Rd2#
- 1...fxg6!
- threat
- 1.Rc2?
- 1...Sxh4
- 2.Qxe4#
- 1...Rd2
- 2.Rxd2#
- 1...Re1
- 2.Rd2#
- 1...Ra1
- 2.Rd2#
- 1...Rb1
- 2.Rd2#
- 1...Rc1
- 2.Rd2#
- 1...Rf1
- 2.Rd2#
- 1...Rg1
- 2.Rd2#
- 1...Rh1
- 2.Rd2#
- 1...Sf4
- 2.Qxe4#
- 1...Se7
- 2.Qxe4#
- 1...Sf8
- 2.Qxe4#
- 1...Sh8
- 2.Qxe4#
- 1...Kxc2+!
- 1...Sxh4
- 1.Qg4?
- threat
- 2.Qxd1#
- 2.Qe2#
- 1...Rd2
- 2.Rxd2#
- 1...Re1
- 2.Rd2#
- 1...Ra1
- 2.Rd2#
- 2.Qe2#
- 1...Rb1
- 2.Rd2#
- 2.Qe2#
- 1...Rc1
- 2.Rd2#
- 2.Qe2#
- 1...Rf1
- 2.Rd2#
- 2.Qe2#
- 1...Rg1
- 2.Rd2#
- 2.Qe2#
- 1...Rh1
- 2.Rd2#
- 2.Qe2#
- 1...Sf4
- 2.Qxd1#
- 2.Qf3#
- 1...e3
- 2.Sxe5#
- 2.Ra3#
- 1...hxg4!
- threat
- 1.Qxg6?
- threat
- 2.Qxe4#
- 1...Re1
- 2.Rd2#
- 1...fxg6!
- threat
- 1.Qf3+?
- 1...e3
- 2.Sxe5#
- 2.Qd5#
- 2.Qxe3#
- 1...exf3!
- 1...e3
- 1.Qxe5?
- threat
- 2.Qc3#
- 2.Qd4#
- 2.Qd5#
- 1...Rd2
- 2.Rxd2#
- 2.Qc3#
- 1...Rc1
- 2.Rd2#
- 2.Qd4#
- 2.Qd5#
- 1...Sf4
- 2.Bxe4#
- 2.Qc3#
- 2.Qd4#
- 2.Qxe4#
- 1...Se7
- 2.Bxe4#
- 2.Qc3#
- 2.Qd4#
- 2.Qxe4#
- 1...e3
- 2.Qd4#
- 2.Qxe3#
- 2.Qd5#
- 2.Qf5#
- 1...Sxe5!
- threat
- 1.g4?
- 1...Sxh4
- 2.Qxe4#
- 1...Rd2
- 2.Rxd2#
- 1...Re1
- 2.Rd2#
- 1...Ra1
- 2.Rd2#
- 1...Rb1
- 2.Rd2#
- 1...Rc1
- 2.Rd2#
- 1...Rf1
- 2.Rd2#
- 1...Rg1
- 2.Rd2#
- 1...Rh1
- 2.Rd2#
- 1...Sf4
- 2.Qxe4#
- 1...Se7
- 2.Qxe4#
- 2.Qf3#
- 1...Sf8
- 2.Qxe4#
- 2.Qf3#
- 1...Sh8
- 2.Qxe4#
- 2.Qf3#
- 1...hxg4!
- 1...Sxh4
- 1.Kc5?
- Keys
- 1.Qh3!
- 1...Sxh4
- 2.gxh4#
- 1...Rd2
- 2.Rxd2#
- 1...e3
- 2.Sxe5#
- 1...Re1
- 2.Rd2#
- 1...Ra1
- 2.Rd2#
- 1...Rb1
- 2.Rd2#
- 1...Rc1
- 2.Rd2#
- 1...Rf1
- 2.Rd2#
- 1...Rg1
- 2.Rd2#
- 1...Rh1
- 2.Rd2#
- 1...Sf4
- 2.gxf4#
- 1...Se7
- 2.g4#
- 1...Sf8
- 2.g4#
- 1...Sh8
- 2.g4#
- 1...Sxh4
- 1.Qh3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::R1(B)
- R(a);N_GUARD::R1(B),XR(a)
- S(g);::QAB1(H),XP(c)
- S(g);XP(G)::QAB1(H),XP(c)
- Tries
- Try
- K(J);S_FLIGHT
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD::R1(B),XR(a)
- P(h);::R(E)
- Refutation
- P(h);CHECK
- Try
- K(J);P-FLIGHT,XP(h)
- Vars
- S(g);XP(G)::QAB1(H),XP(c)
- R(a);N_GUARD::R1(B),XR(a)
- R(a);N_GUARD::R1(B)
- S(g);::QAB1(H),XP(c)
- Refutation
- S(g);CHECK
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(a);::QAB1(H),XP(c)
- Refutation
- K(b);CHECK,N_SPINP(c),P-FLIGHT,XS(F)
- Try
- S(F);XP(d)
- Threat
- DUALS(2)
- Vars
- R(a);::QAB1(H),XP(c)
- R(a);::R(E)
- Refutation
- K(b);CHECK,N_SPINP(c),P-FLIGHT
- Try
- S(F);CHECK,XP(e)
- Vars
- S(g);XS(F)::QAB1(H),XP(c)
- Refutation
- K(b);CHECK,N_SPINP(c),P-FLIGHT
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(a);::QAB1(H),XP(c)
- R(a);::R(E)
- Refutation
- K(b);CHECK,N_SPINP(c),P-FLIGHT
- Try
- B(A);
- Vars
- S(g);XP(G)::QAB1(H),XP(c)
- R(a);N_GUARD::R1(B),XR(a)
- R(a);N_GUARD::R1(B)
- S(g);::QAB1(H),XP(c)
- Refutation
- R(a);XB(A)
- Try
- B(A);XP(e)
- Vars
- S(g);XP(G)::QAB1(H),XP(c)
- R(a);N_GUARD::R1(B),XR(a)
- R(a);N_GUARD::R1(B)
- S(g);::QAB1(H),XP(c)
- Refutation
- S(g);XB(A)
- Try
- B(L);XS(g)
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD::R1(B)
- Refutation
- P(i);XB(L)
- Try
- R(B);
- Vars
- S(g);XP(G)::QAB1(H),XP(c)
- R(a);N_GUARD::R1(B),XR(a)
- R(a);N_GUARD::R1(B)
- S(g);::QAB1(H),XP(c)
- Refutation
- K(b);CHECK,S_FLIGHT,XR(B)
- Try
- Q(H);N_PINP(c)
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD::R1(B),XR(a)
- R(a);N_GUARD::R1(B)
- Refutation
- P(f);XQ(H)
- Try
- Q(H);XS(g)
- Threat
- QAB1(H),XP(c)
- Vars
- R(a);N_GUARD::R1(B)
- Refutation
- P(i);N_SPINP(c),XQ(H)
- Try
- Q(H);CHECK,N_PINP(c)
- Refutation
- P(c);P_SPINS(g),XQ(H)
- Try
- Q(H);N_PINP(c),XP(e)
- Threat
- DUALS(3)
- Refutation
- S(g);P_SPINP(c),XQ(H)
- Try
- P(D);
- Vars
- S(g);XP(G)::QAB1(H),XP(c)
- R(a);N_GUARD::R1(B),XR(a)
- R(a);N_GUARD::R1(B)
- S(g);::QAB1(H),XP(c)
- Refutation
- P(f);XP(D)
- Try
- Actual
- Q(H);N_PINP(c)
- Vars
- S(g);OGATE,P_SPINP(c),XP(G)::QAR(H)+P(D),XS(g)
- R(a);N_GUARD::R1(B),XR(a)
- P(c);P_SPINS(g),SBLOCK::S(F),XP(e)
- R(a);N_GUARD::R1(B)
- S(g);OGATE,P_SPINP(c)::QAR(H)+P(D),XS(g)
- S(g);P_SPINP(c)::QAR(H)+P(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).