MESON Chess Problem Database
Problem Display
PID: 204487 (3n4/K2R2b1/1P4Bn/N2Pk1P1/2p4p/p3r3/bqNP1Q2/B3r3 w - - 0 1)
Hertmann, Sandor
L'Echiquier, 1925
#2
11 + 11
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Bxd4#
- 1...Rxa1
- 2.Qxe3#
- 1...Rb1
- 2.Qxe3#
- 1...Rc1
- 2.Qxe3#
- 1...Rd1
- 2.Qxe3#
- 1...Rf1
- 2.Qxe3#
- 1...Rg1
- 2.Qxe3#
- 1...Rh1
- 2.Qxe3#
- 1...Rb3
- 2.Sxc4#
- 1...Rc3
- 2.Qd4#
- 1...Bb1
- 2.Sxc4#
- 1...Bf6
- 2.Qxf6#
- 1...Bf8
- 2.Qf6#
- 1...Sg4
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Shf7
- 2.Qf5#
- 1...Sg8
- 2.Qf5#
- 1...Sc6+
- 2.Sxc6#
- 1...Se6
- 2.Sc6#
- 1...Sb7
- 2.Sc6#
- 1...Sdf7
- 2.Sc6#
- 1...c3
- 2.d4#
- 1...Qd4
- Tries
- 1.Bxb2+?
- 1...Rc3
- 2.Bxc3#
- 2.Qd4#
- 2.Qh2#
- 1...c3
- 2.d4#
- 1...axb2!
- 1...Rc3
- 1.Rxd8?
- threat
- 2.Sc6#
- 1...Sf5
- 2.Qxf5#
- 1...Rf3!
- threat
- 1.dxe3?
- threat
- 2.Qh2#
- 2.Qf4#
- 1...Sc6+
- 2.Sxc6#
- 1...Rxe3
- 2.Qxe3#
- 1...Sf5
- 2.Qf4#
- 2.Qxf5#
- 1...Rg1
- 2.Qf4#
- 1...Rh1
- 2.Qf4#
- 1...Re2
- 2.Qf4#
- 1...Sg4
- 2.Qf4#
- 2.Qf5#
- 1...Se6
- 2.Sc6#
- 1...Rf1!
- threat
- 1.d4+?
- 1...Qxd4
- 2.Bxd4#
- 1...cxd4 ep!
- 1...Qxd4
- 1.Bxb2+?
- Keys
- 1.b7!
- threat
- 2.b8Q#
- 2.b8B#
- 1...Qd4+
- 2.Bxd4#
- 1...Sc6+
- 2.Sxc6#
- 1...Qxa1
- 2.b8Q#
- 2.b8B#
- 1...Rxa1
- 2.Qxe3#
- 1...Sxb7
- 2.Sc6#
- 1...Rf3
- 2.b8Q#
- 2.b8B#
- 1...Sf5
- 2.Qxf5#
- 1...Rf1
- 2.Qxe3#
- 2.b8Q#
- 2.b8B#
- 1...Qc3
- 2.b8Q#
- 2.b8B#
- 1...Rb1
- 2.Qxe3#
- 2.b8Q#
- 2.b8B#
- 1...Rc1
- 2.Qxe3#
- 2.b8Q#
- 2.b8B#
- 1...Rd1
- 2.Qxe3#
- 2.b8Q#
- 2.b8B#
- 1...Rg1
- 2.Qxe3#
- 2.b8Q#
- 2.b8B#
- 1...Rh1
- 2.Qxe3#
- 2.b8Q#
- 2.b8B#
- 1...R1e2
- 2.b8Q#
- 2.b8B#
- 1...R3e2
- 2.b8Q#
- 2.b8B#
- 1...Rb3
- 2.Sxc4#
- 1...Rc3
- 2.Qd4#
- 1...Rd3
- 2.b8Q#
- 2.b8B#
- 1...Rg3
- 2.b8Q#
- 2.b8B#
- 1...Rh3
- 2.b8Q#
- 2.b8B#
- 1...Re4
- 2.b8Q#
- 2.b8B#
- 1...Bb1
- 2.Sxc4#
- 2.b8Q#
- 2.b8B#
- 1...Bb3
- 2.b8Q#
- 2.b8B#
- 1...Bf6
- 2.Qxf6#
- 2.b8Q#
- 2.b8B#
- 1...Bf8
- 2.Qf6#
- 1...Bh8
- 2.b8Q#
- 2.b8B#
- 1...Sg4
- 2.Qf5#
- 2.b8Q#
- 2.b8B#
- 1...Shf7
- 2.Qf5#
- 1...Sg8
- 2.Qf5#
- 2.b8Q#
- 2.b8B#
- 1...Se6
- 2.Sc6#
- 1...Sdf7
- 2.Sc6#
- 1...c3
- 2.d4#
- 1...h3
- 2.b8Q#
- 2.b8B#
- threat
- 1.b7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 10
- Sets
- Q(c);OGATE,P_PINP(H)::B(A),XQ(c)
- R(a);N_GUARD,N_SPINQ(c),XB(A)::QAR2(D),XR(e)
- R(a);N_GUARD::QAR2(D),XR(e)
- R(e);S_CUTB(b)::S(E),XP(f)
- R(e);N_SPINQ(c),OGATE::QAB1(D)
- B(b);N_GUARD::S(E),XP(f)
- B(j);N_GUARD::QAB1(D),XB(j)
- B(j);N_GUARD::QAB1(D)
- S(i);N_GUARD::QAR1(D)
- S(i);N_GUARD::QAR1(D),XS(i)
- S(k);CHECK,N_GUARD::S(E),XS(k)
- S(k);N_GUARD::S(E)
- P(f);N_GUARD,N_SPINQ(c),S_CUTQ(c)::P(C)
- Tries
- Try
- B(A);CHECK,XQ(c)
- Vars
- P(f);P_SPINP(f)::P(C)
- Refutation
- P(d);XB(A)
- Try
- R(K);XS(k)
- Threat
- S(E)
- Vars
- S(i);N_GUARD::QAR1(D),XS(i)
- Refutation
- R(e);
- Try
- P(C);XR(e)
- Threat
- DUALS(2)
- Vars
- S(k);CHECK,N_GUARD::S(E),XS(k)
- R(a);OGATE,XP(C)::QAR2(D),XR(a)
- R(a);::QAB1(D)
- S(k);N_GUARD::S(E)
- Refutation
- R(a);
- Try
- P(C);CHECK,N_PINQ(c)
- Vars
- Q(c);OGATE,P_PINP(H),P_SPINQ(c),XP(C)::B(A),XQ(c)
- Refutation
- P(f);EP,P_SPINQ(c),XP(C)
- Try
- Actual
- P(H);
- Threat
- P=Q
- Vars
- Q(c);CHECK,OGATE::B(A),XQ(c)
- S(k);CHECK,N_GUARD::S(E),XS(k)
- Q(c);N_SPINQ(c),XB(A)::P=Q
- R(a);N_GUARD,N_SPINQ(c),XB(A)::QAR2(D),XR(e)
- S(k);N_GUARD,XP(H)::S(E)
- R(e);::P=Q
- S(i);N_GUARD::QAR1(D),XS(i)
- Q(c);::P=Q
- R(a);::P=Q
- R(e);S_CUTB(b)::S(E),XP(f)
- R(e);N_SPINQ(c),OGATE::QAB1(D)
- B(b);::P=Q
- B(j);N_GUARD::QAB1(D)
- B(j);::P=Q
- S(i);N_GUARD::QAR1(D)
- S(k);N_GUARD::S(E)
- P(f);N_GUARD,N_SPINQ(c),S_CUTQ(c)::P(C)
- P(g);::P=Q
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).