MESON Chess Problem Database
Problem Display
PID: 250189 (6qB/4b2N/2BP4/3R1p2/2K1kP2/8/3P2P1/5Qnn w - - 0 1)
Hertmann, Sandor
2nd HM., Shakhmaty, 1927
#2
10 + 6
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxd5+
- 2.Bxd5#
- 1...Qxh7
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 1...Qxg2
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 1...Qg3
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 1...Qg4
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 1...Qg5
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 1...Qg6
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 1...Qg7
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 1...Qa8
- 2.Rd4#
- 2.Re5#
- 1...Qb8
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 1...Qc8
- 2.Rd4#
- 2.Re5#
- 1...Qd8
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 1...Qe8
- 2.Rd4#
- 2.Re5#
- 1...Qf8
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 1...Qxh8
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 1...Bxd6
- 2.Sf6#
- 1...Bf6
- 2.Sxf6#
- 1...Bf8
- 2.Sf6#
- 1...Se2
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sh3
- 2.Qf3#
- 1...Qxd5+
- Tries
- 1.Kc3?
- threat
- 2.Rd4#
- 2.Re5#
- 2.Qc4#
- 1...Qg3+
- 2.Rd3#
- 1...Qg7+
- 2.Rd4#
- 2.Re5#
- 1...Qxh8+
- 2.Rd4#
- 2.Re5#
- 1...Bf6+
- 2.Sxf6#
- 2.Rd4#
- 2.Re5#
- 1...Qxd5
- 2.Qc4#
- 1...Qxg2
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 1...Sf3
- 2.Rd4#
- 2.Qxf3#
- 1...Sf2
- 2.Rd4#
- 2.Qc4#
- 1...Se2+!
- threat
- 1.Kb4?
- threat
- 2.Rd4#
- 2.Qc4#
- 1...Qb8+
- 2.Rb5#
- 1...Qxd5
- 2.Qc4#
- 1...Qxg2
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 1...Qxh8
- 2.Rd3#
- 1...Sf3
- 2.Rd4#
- 2.Qxf3#
- 1...Qg7
- 2.Rd3#
- 1...Bf6
- 2.Sxf6#
- 1...Se2
- 2.Rd4#
- 2.Qf3#
- 1...Bxd6+!
- threat
- 1.Kc5?
- threat
- 2.Rd4#
- 2.Re5#
- 2.Qc4#
- 1...Qxd5+
- 2.Bxd5#
- 1...Qxg2
- 2.Rd3#
- 2.Rd4#
- 2.Re5#
- 1...Qxh8
- 2.Rd3#
- 2.Rd4#
- 2.Re5#
- 1...Sf3
- 2.Rd4#
- 2.Qxf3#
- 1...Sf2
- 2.Rd4#
- 2.Qc4#
- 1...Qg7
- 2.Rd3#
- 2.Rd4#
- 2.Re5#
- 1...Bf6
- 2.Sxf6#
- 2.Rd4#
- 2.Re5#
- 1...Se2
- 2.Rd4#
- 2.Qf3#
- 1...Bxd6+!
- threat
- 1.Sg5+?
- 1...Qxg5
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 1...Bxg5!
- 1...Qxg5
- 1.Bd4?
- threat
- 2.d3#
- 1...Qxd5+
- 2.Bxd5#
- 1...Sf3
- 2.Qxf3#
- 1...Qg3
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 1...Sf2!
- threat
- 1.Be5?
- threat
- 2.Qd3#
- 2.Qb1#
- 1...Qxd5+
- 2.Bxd5#
- 1...Qxg2
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Qd3#
- 1...Qg3
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 1...Qb8
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Qd3#
- 1...Se2
- 2.Qxe2#
- 2.Qb1#
- 2.Qf3#
- 1...Sf2!
- threat
- 1.Qe2+?
- 1...Kxf4
- 2.Be5#
- 1...Sxe2!
- 1...Kxf4
- 1.Qf2?
- threat
- 2.Qe3#
- 2.Qd4#
- 2.d3#
- 1...Qxd5+
- 2.Bxd5#
- 1...Qxg2
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 2.Qe3#
- 2.d3#
- 1...Qxh8
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 2.Qe3#
- 2.d3#
- 1...Sf3
- 2.Qe3#
- 2.Qxf3#
- 1...Qg3
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 2.Qd4#
- 1...Qg7
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 2.Qe3#
- 2.d3#
- 1...Bf6
- 2.Sxf6#
- 2.Qe3#
- 2.d3#
- 1...Se2
- 2.Qe3#
- 2.Qf3#
- 2.d3#
- 1...Sxf2!
- threat
- 1.dxe7?
- threat
- 2.Sf6#
- 1...Qxd5+
- 2.Bxd5#
- 1...Qxh7
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Qxh8
- 2.Sg5#
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Sf3
- 2.Qxf3#
- 1...Qe6
- 2.Sg5#
- 1...Qf7
- 2.Sg5#
- 1...Qg5
- 2.Sxg5#
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Qg6
- 2.Rd4#
- 2.Re5#
- 2.Rd6#
- 1...Qg7
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Qf8
- 2.Sg5#
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Sf2!
- threat
- 1.Kc3?
- Keys
- 1.Kb3!
- threat
- 2.Qc4#
- 1...Qg3+
- 2.Rd3#
- 1...Qb8+
- 2.Rb5#
- 1...Qxg2
- 2.Rd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 1...Qxh8
- 2.Rd3#
- 1...Sf3
- 2.Qxf3#
- 1...Qg7
- 2.Rd3#
- 1...Bf6
- 2.Sxf6#
- 1...Se2
- 2.Qf3#
- threat
- 1.Kb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- Q(f);CHECK,OGATE,P_SPINQ(f),XR(F)::B(G),XQ(f)
- B(e);N_GUARD,XP(H)::S(I)
- B(e);N_GUARD::S(I),XB(e)
- B(e);N_GUARD::S(I)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- Tries
- Try
- K(D);N_SPINR(F),P-FLIGHT
- Threat
- DUALS(3)
- Vars
- Q(f);CHECK,N_GUARD::B(G)+R(F)
- Q(f);P_SPINQ(f),XR(F)::QAR2(A)
- Refutation
- S(a);CHECK
- Try
- K(D);N_SPINR(F),P-FLIGHT,P_SPINP(H)
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK,N_GUARD::B(G)+R(F)
- Q(f);P_SPINQ(f),XR(F)::QAR2(A)
- Q(f);N_GUARD,XB(J)::B(G)+R(F)
- Q(f);N_GUARD::B(G)+R(F)
- B(e);N_GUARD,N_PINP(H)::S(I),XB(e)
- Refutation
- B(e);CHECK,XP(H)
- Try
- K(D);N_SPINR(F),P-FLIGHT,P_SPINP(H)
- Threat
- DUALS(3)
- Vars
- Q(f);CHECK,OGATE,P_SPINQ(f),XR(F)::B(G),XQ(f)
- Refutation
- B(e);CHECK,XP(H)
- Try
- S(I);CHECK
- Refutation
- B(e);XS(I)
- Try
- B(J);
- Threat
- P(B)
- Vars
- Q(f);CHECK,OGATE,P_SPINQ(f),XR(F)::B(G),XQ(f)
- S(a);N_GUARD::QAB1(A),XS(a)
- Refutation
- S(b);
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK,OGATE,P_SPINQ(f),XR(F)::B(G),XQ(f)
- Refutation
- S(b);
- Try
- Q(A);CHECK
- Vars
- K(c);P-FLIGHT,S_CUTS(a),XP(E)::B(J)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- Q(f);CHECK,OGATE,P_SPINQ(f),XR(F)::B(G),XQ(f)
- Refutation
- S(b);XQ(A)
- Try
- P(H);XB(e)
- Threat
- S(I)
- Vars
- Q(f);CHECK,OGATE,P_SPINQ(f),XR(F)::B(G),XQ(f)
- S(a);N_GUARD::QAB1(A),XS(a)
- Q(f);N_GUARD::S(I)
- Refutation
- S(b);
- Try
- Actual
- K(D);S_FLIGHT
- Threat
- QAR2(A)
- Vars
- Q(f);CHECK,N_PINR(F)::B(G)+R(F)
- Q(f);N_PINR(F),XB(J)::B(G)+R(F)
- S(a);N_GUARD::QAB1(A),XS(a)
- Q(f);N_PINR(F)::B(G)+R(F)
- B(e);N_GUARD::S(I),XB(e)
- S(a);N_GUARD::QAB1(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).