MESON Chess Problem Database
Problem Display
PID: 49075 (8/8/1p2PBn1/bp1Pr3/pk2p3/4P3/2Q5/R3K3 w Q - 0 1)
Gruber, Bratoljub
Problem (Zagreb), 1955
#2
7 + 8
| 273 | Mat Plus | 1995 |
SOLUTION
- SOUND
- Sets
- 1...Rxd5
- 2.Qc3#
- 1...Rf5
- 2.Qc3#
- 1...Rg5
- 2.Qc3#
- 1...Rh5
- 2.Qc3#
- 1...Rxe6
- 2.Qc3#
- 1...Sf4
- 2.Be7#
- 1...Sh4
- 2.Be7#
- 1...Se7
- 2.Bxe7#
- 1...Sf8
- 2.Be7#
- 1...Sh8
- 2.Be7#
- 1...a3
- 2.Rb1#
- 1...Rxd5
- Tries
- 1.Kd1?
- 1...Rxe6
- 2.Qc3#
- 1...Rf5
- 2.Qc3#
- 1...Rg5
- 2.Qc3#
- 1...Rh5
- 2.Qc3#
- 1...Sf4
- 2.Be7#
- 1...Sh4
- 2.Be7#
- 1...Se7
- 2.Bxe7#
- 1...Sf8
- 2.Be7#
- 1...Sh8
- 2.Be7#
- 1...a3
- 2.Rb1#
- 1...Rxd5+!
- 1...Rxe6
- 1.Kf1?
- 1...Rxd5
- 2.Qc3#
- 1...Rxe6
- 2.Qc3#
- 1...Rg5
- 2.Qc3#
- 1...Rh5
- 2.Qc3#
- 1...Sf4
- 2.Be7#
- 1...Sh4
- 2.Be7#
- 1...Se7
- 2.Bxe7#
- 1...Sf8
- 2.Be7#
- 1...Sh8
- 2.Be7#
- 1...a3
- 2.Rb1#
- 1...Rf5+!
- 1...Rxd5
- 1.Kd2?
- threat
- 2.Qc3#
- 1...a3
- 2.Rb1#
- 1...Rxd5+!
- threat
- 1.Ke2?
- 1...Rxd5
- 2.Qc3#
- 1...Rxe6
- 2.Qc3#
- 1...Rf5
- 2.Qc3#
- 1...Rg5
- 2.Qc3#
- 1...Rh5
- 2.Qc3#
- 1...Sh4
- 2.Be7#
- 1...Se7
- 2.Bxe7#
- 1...Sf8
- 2.Be7#
- 1...Sh8
- 2.Be7#
- 1...a3
- 2.Rb1#
- 1...Sf4+!
- 1...Rxd5
- 1.Kf2?
- 1...Rxd5
- 2.Qc3#
- 1...Rxe6
- 2.Qc3#
- 1...Rg5
- 2.Qc3#
- 1...Rh5
- 2.Qc3#
- 1...Sf4
- 2.Be7#
- 1...Sh4
- 2.Be7#
- 1...Se7
- 2.Bxe7#
- 1...Sf8
- 2.Be7#
- 1...Sh8
- 2.Be7#
- 1...a3
- 2.Rb1#
- 1...Rf5+!
- 1...Rxd5
- 1.Bxe5?
- threat
- 2.Bd6#
- 2.Qc3#
- 1...a3
- 2.Bd6#
- 2.Rb1#
- 1...Sxe5!
- threat
- 1.Bg7?
- 1...Rxd5
- 2.Qc3#
- 1...Rxe6
- 2.Qc3#
- 1...Rf5
- 2.Qc3#
- 1...Rg5
- 2.Qc3#
- 1...Rh5
- 2.Qc3#
- 1...Sf4
- 2.Bf8#
- 1...Sh4
- 2.Bf8#
- 1...Sf8
- 2.Bxf8#
- 1...Sh8
- 2.Bf8#
- 1...a3
- 2.Rb1#
- 1...Se7!
- 1...Rxd5
- 1.Rc1?
- threat
- 2.Qb2#
- 2.Qc3#
- 1...a3
- 2.Rb1#
- 1...Ka3+!
- threat
- 1.Rd1?
- 1...Rxd5
- 2.Qc3#
- 1...Rxe6
- 2.Qc3#
- 1...Rf5
- 2.Qc3#
- 1...Rg5
- 2.Qc3#
- 1...Rh5
- 2.Qc3#
- 1...Sf4
- 2.Be7#
- 1...Sh4
- 2.Be7#
- 1...Se7
- 2.Bxe7#
- 1...Sf8
- 2.Be7#
- 1...Sh8
- 2.Be7#
- 1...a3
- 2.Rb1#
- 2.Rd4#
- 1...Ka3+!
- 1...Rxd5
- 1.Ra2?
- 1...Rxd5
- 2.Qc3#
- 1...Rxe6
- 2.Qc3#
- 1...Rf5
- 2.Qc3#
- 1...Rg5
- 2.Qc3#
- 1...Rh5
- 2.Qc3#
- 1...Sf4
- 2.Be7#
- 1...Sh4
- 2.Be7#
- 1...Se7
- 2.Bxe7#
- 1...Sf8
- 2.Be7#
- 1...Sh8
- 2.Be7#
- 1...a3!
- 1...Rxd5
- 1.Kd1?
- Keys
- 1.0-0-0!
- 1...Ka3
- 2.Qb2#
- 1...Rxd5
- 2.Qc3#
- 1...Rxe6
- 2.Qc3#
- 1...Sf4
- 2.Be7#
- 1...Rf5
- 2.Qc3#
- 1...Rg5
- 2.Qc3#
- 1...Rh5
- 2.Qc3#
- 1...Sh4
- 2.Be7#
- 1...Se7
- 2.Bxe7#
- 1...Sf8
- 2.Be7#
- 1...Sh8
- 2.Be7#
- 1...a3
- 2.Rd4#
- 1...Ka3
- 1.0-0-0!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(f);XP(E)::QAB1(C)
- R(f);::QAB1(C)
- R(f);XP(F)::QAB1(C)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- P(a);SBLOCK::R(A)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- R(f);XP(F)::QAB1(C)
- R(f);::QAB1(C)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- P(a);SBLOCK::R(A)
- Refutation
- R(f);CHECK,XP(E)
- Try
- K(B);P-FLIGHT
- Vars
- R(f);XP(E)::QAB1(C)
- R(f);XP(F)::QAB1(C)
- R(f);::QAB1(C)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- P(a);SBLOCK::R(A)
- Refutation
- R(f);CHECK
- Try
- K(B);S_FLIGHT
- Threat
- QAB1(C)
- Vars
- P(a);SBLOCK::R(A)
- Refutation
- R(f);CHECK,XP(E)
- Try
- K(B);P-FLIGHT
- Vars
- R(f);XP(E)::QAB1(C)
- R(f);XP(F)::QAB1(C)
- R(f);::QAB1(C)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- P(a);SBLOCK::R(A)
- Refutation
- S(h);CHECK
- Try
- K(B);S_FLIGHT
- Vars
- R(f);XP(E)::QAB1(C)
- R(f);XP(F)::QAB1(C)
- R(f);::QAB1(C)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- P(a);SBLOCK::R(A)
- Refutation
- R(f);CHECK
- Try
- B(G);XR(f)
- Threat
- DUALS(2)
- Refutation
- S(h);XB(G)
- Try
- B(G);
- Vars
- R(f);XP(E)::QAB1(C)
- R(f);XP(F)::QAB1(C)
- R(f);::QAB1(C)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- P(a);SBLOCK::R(A)
- Refutation
- S(h);
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- P(a);SBLOCK::R(A)
- Refutation
- K(b);CHECK,S_FLIGHT
- Try
- R(A);
- Vars
- R(f);XP(E)::QAB1(C)
- R(f);XP(F)::QAB1(C)
- R(f);::QAB1(C)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- Refutation
- K(b);CHECK,S_FLIGHT
- Try
- R(A);
- Vars
- R(f);XP(E)::QAB1(C)
- R(f);XP(F)::QAB1(C)
- R(f);::QAB1(C)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- Refutation
- P(a);
- Try
- Actual
- K(B);0-0-0
- Vars
- K(b);S_FLIGHT::QAB1(C)
- R(f);XP(E)::QAB1(C)
- R(f);XP(F)::QAB1(C)
- S(h);N_GUARD::B(G)
- R(f);::QAB1(C)
- S(h);N_GUARD::B(G),XS(h)
- P(a);SBLOCK::R(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).