MESON Chess Problem Database
Problem Display
PID: 99890 (8/2pK4/2N4p/3k2b1/pR6/5r2/6Q1/5rB1 w - - 0 1)
Cvetkovic, Miroslav D
Magyar Sakkelet, 1987
#2
5 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qxf3#
- 1...Rb1
- 2.Qxf3#
- 1...Rc1
- 2.Qxf3#
- 1...Rd1
- 2.Qxf3#
- 1...Bf4
- 2.Qg8#
- 1...Bf6
- 2.Qg8#
- 1...Ra1
- Tries
- 1.Bb6?
- threat
- 2.Rd4#
- 1...Rd1
- 2.Qxf3#
- 1...Be3
- 2.Qa2#
- 1...Bf6
- 2.Qg8#
- 1...cxb6!
- threat
- 1.Qxf1?
- threat
- 2.Qc4#
- 2.Qb5#
- 2.Qxf3#
- 1...Rf7+
- 2.Qxf7#
- 1...Rf2
- 2.Qc4#
- 2.Qb5#
- 1...Re3
- 2.Qc4#
- 2.Qb5#
- 1...Be3
- 2.Qc4#
- 1...Ra3
- 2.Qc4#
- 2.Qb5#
- 2.Qf5#
- 2.Qf7#
- 1...Rb3
- 2.Qc4#
- 2.Qb5#
- 2.Qf5#
- 2.Qf7#
- 1...Rc3
- 2.Qf5#
- 2.Qf7#
- 1...Rd3
- 2.Qxd3#
- 2.Qf5#
- 2.Qf7#
- 1...Rg3
- 2.Qc4#
- 2.Qb5#
- 2.Qf5#
- 2.Qf7#
- 1...Rh3
- 2.Qc4#
- 2.Qb5#
- 2.Qf5#
- 2.Qf7#
- 1...Rf4
- 2.Qb5#
- 1...Rf5
- 2.Qd3#
- 2.Qc4#
- 2.Qb5#
- 2.Qxf5#
- 1...Rf6
- 2.Qd3#
- 2.Qc4#
- 2.Qb5#
- 1...Rf8
- 2.Qd3#
- 2.Qc4#
- 2.Qb5#
- 1...Be7
- 2.Qc4#
- 2.Qxf3#
- 1...Rxf1!
- threat
- 1.Qc2?
- threat
- 2.Rd4#
- 2.Rb5#
- 2.Qe4#
- 2.Qc4#
- 2.Qc5#
- 1...Rxg1
- 2.Rd4#
- 2.Rb5#
- 2.Qc4#
- 1...Rb1
- 2.Rd4#
- 2.Qe4#
- 2.Qc4#
- 2.Qc5#
- 1...Rc1
- 2.Rd4#
- 2.Rb5#
- 2.Qe4#
- 1...Rd1
- 2.Rb5#
- 2.Qe4#
- 2.Qc4#
- 2.Qc5#
- 1...Re1
- 2.Rd4#
- 2.Rb5#
- 2.Qc4#
- 2.Qc5#
- 1...R1f2
- 2.Rd4#
- 2.Rb5#
- 2.Qc4#
- 1...R3f2
- 2.Rd4#
- 2.Rb5#
- 2.Qc4#
- 1...Rb3
- 2.Rd4#
- 2.Qe4#
- 2.Qc4#
- 2.Qc5#
- 1...Rc3
- 2.Qe4#
- 1...Rd3
- 2.Qxd3#
- 2.Qc4#
- 2.Qc5#
- 1...Re3
- 2.Rd4#
- 2.Rb5#
- 2.Qc4#
- 1...Rf4
- 2.Rb5#
- 2.Qc5#
- 1...Be3
- 2.Qc4#
- 1...Bf6
- 2.Rb5#
- 2.Qe4#
- 2.Qc4#
- 2.Qc5#
- 1...Be7
- 2.Rd4#
- 2.Qe4#
- 2.Qc4#
- 1...Rf7+!
- threat
- 1.Qd2+?
- 1...Rd3
- 2.Qxd3#
- 1...Bxd2!
- 1...Rd3
- 1.Qe2?
- threat
- 2.Rb5#
- 2.Qc4#
- 2.Qb5#
- 2.Qe4#
- 2.Qe5#
- 2.Qe6#
- 1...Rxg1
- 2.Rb5#
- 2.Qc4#
- 2.Qb5#
- 2.Qe5#
- 1...R1f2
- 2.Rb5#
- 2.Qc4#
- 2.Qb5#
- 2.Qe5#
- 1...R3f2
- 2.Rb5#
- 2.Qc4#
- 2.Qb5#
- 2.Qe5#
- 1...Re3
- 2.Qc4#
- 2.Qb5#
- 1...Be3
- 2.Qc4#
- 1...Rb1
- 2.Qxf3#
- 2.Qc4#
- 2.Qb5#
- 2.Qe4#
- 2.Qe5#
- 2.Qe6#
- 1...Rc1
- 2.Qxf3#
- 2.Qe4#
- 2.Qe5#
- 2.Qe6#
- 1...Re1
- 2.Rb5#
- 2.Qc4#
- 2.Qb5#
- 1...Rb3
- 2.Qc4#
- 2.Qb5#
- 2.Qe4#
- 2.Qe5#
- 2.Qe6#
- 1...Rc3
- 2.Qe4#
- 2.Qe5#
- 2.Qe6#
- 1...Rd3
- 2.Qxd3#
- 2.Qe4#
- 2.Qe5#
- 2.Qe6#
- 1...Rf4
- 2.Rb5#
- 2.Qb5#
- 2.Qe5#
- 2.Qe6#
- 1...Rf5
- 2.Rb5#
- 2.Qd3#
- 2.Qc4#
- 2.Qb5#
- 2.Qa2#
- 2.Qe4#
- 2.Qe6#
- 1...Rf6
- 2.Se7#
- 2.Rb5#
- 2.Qd3#
- 2.Qc4#
- 2.Qb5#
- 2.Qa2#
- 2.Qe4#
- 2.Qe5#
- 1...Bf4
- 2.Se7#
- 2.Rb5#
- 2.Qc4#
- 2.Qb5#
- 2.Qe4#
- 2.Qe6#
- 1...Bf6
- 2.Rb5#
- 2.Qc4#
- 2.Qb5#
- 2.Qe4#
- 2.Qe6#
- 1...Be7
- 2.Sxe7#
- 2.Qc4#
- 2.Qe4#
- 2.Qe5#
- 2.Qe6#
- 1...Rf7+!
- threat
- 1.Qg4?
- threat
- 2.Rb5#
- 2.Qe6#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Rxg1
- 2.Rb5#
- 2.Qc4#
- 2.Qd4#
- 1...R1f2
- 2.Rb5#
- 2.Qc4#
- 2.Qd4#
- 1...R3f2
- 2.Rb5#
- 2.Qc4#
- 2.Qd4#
- 1...Re3
- 2.Rb5#
- 2.Qc4#
- 2.Qd4#
- 1...Be3
- 2.Qc4#
- 1...Rb1
- 2.Qxf3#
- 2.Qe6#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Rc1
- 2.Qxf3#
- 2.Qe6#
- 2.Qd4#
- 2.Qe4#
- 1...Rd1
- 2.Rb5#
- 2.Qxf3#
- 2.Qe6#
- 2.Qc4#
- 2.Qe4#
- 1...Re1
- 2.Rb5#
- 2.Qc4#
- 2.Qd4#
- 1...Rb3
- 2.Qe6#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Rc3
- 2.Qe6#
- 2.Qd4#
- 2.Qe4#
- 1...Rd3
- 2.Rb5#
- 2.Qe6#
- 2.Qc4#
- 2.Qe4#
- 1...Rf4
- 2.Qe6#
- 1...Rf5
- 2.Rb5#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Rf6
- 2.Rb5#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Bf4
- 2.Qe6#
- 2.Qg8#
- 1...Bf6
- 2.Rb5#
- 2.Qe6#
- 2.Qc4#
- 2.Qe4#
- 2.Qg8#
- 1...Be7
- 2.Qe6#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Rf7+!
- threat
- 1.Qxg5+?
- 1...Rf5
- 2.Qd2#
- 1...hxg5!
- 1...Rf5
- 1.Bb6?
- Keys
- 1.Ba7!
- threat
- 2.Rd4#
- 1...Rd1
- 2.Qxf3#
- 1...Be3
- 2.Qa2#
- 1...Bf6
- 2.Qg8#
- threat
- 1.Ba7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- R(a);N_GUARD::QAB(B),XR(b)
- B(e);OGATE::QAB(B)
- Tries
- Try
- B(A);
- Threat
- R1(C)
- Vars
- R(a);N_GUARD::QAB(B),XR(b)
- B(e);::QAB(B)
- B(e);OGATE::QAB(B)
- Refutation
- P(g);XB(A)
- Try
- Q(B);N_PINR(b),XR(a)
- Threat
- DUALS(3)
- Vars
- R(b);CHECK,OGATE::QAB(B),XR(b)
- B(e);::QAB1(B)
- R(b);::QAR2(B)
- Refutation
- R(b);XQ(B)
- Try
- Q(B);N_PINR(b)
- Threat
- DUALS(5)
- Vars
- R(b);::QAB1(B)
- B(e);::QAB1(B)
- Refutation
- R(b);CHECK
- Try
- Q(B);CHECK,N_PINR(b)
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAR2(B),XR(b)
- Refutation
- B(e);XQ(B)
- Try
- Q(B);N_PINR(b)
- Threat
- DUALS(6)
- Vars
- B(e);::QAB1(B)
- Refutation
- R(b);CHECK
- Try
- Q(B);N_PINR(b)
- Threat
- DUALS(5)
- Vars
- B(e);::QAB1(B)
- R(b);::QAB1(B)
- Refutation
- R(b);CHECK
- Try
- Q(B);CHECK,N_PINR(b),XB(e)
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAR(B)
- Refutation
- P(f);XQ(B)
- Try
- Actual
- B(A);
- Threat
- R1(C)
- Vars
- R(a);N_GUARD::QAB(B),XR(b)
- B(e);::QAB(B)
- B(e);OGATE::QAB(B)
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).