MESON Chess Problem Database
Problem Display
PID: 176389 (b2n1R2/6pK/4B1N1/r5kp/r2Q3p/3p4/1q1NP3/6b1 w - - 0 1)
Haring, Jacobus
Comm., Schach-Echo, 1983
#2
7 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Qxd8#
- 1...Qb1
- 2.Qxd8#
- 1...Qa2
- 2.Qxd8#
- 1...Qc2
- 2.Qxd8#
- 1...Qxd2
- 2.Qxd8#
- 1...Qb3
- 2.Qxd8#
- 1...Qb5
- 2.Qxd8#
- 1...Ra1
- 2.Qf4#
- 2.Qxh4#
- 1...Ra2
- 2.Qf4#
- 2.Qxh4#
- 1...Ra3
- 2.Qf4#
- 2.Qxh4#
- 1...Rd5
- 2.Sf3#
- 2.Se4#
- 1...Re5
- 2.Qxd8#
- 1...Rf5
- 2.Rxf5#
- 1...Ra6
- 2.Rf5#
- 1...Ra7
- 2.Rf5#
- 1...Bf3
- 2.Sxf3#
- 1...Be4
- 2.Sxe4#
- 1...Bd5
- 2.Rf5#
- 1...Sc6
- 2.Sf3#
- 2.Se4#
- 1...Sb7
- 2.Sf3#
- 2.Se4#
- 1...Qc1
- Tries
- 1.Sf4?
- threat
- 2.Sh3#
- 1...Be4+
- 2.Sxe4#
- 1...h3
- 2.Sxh3#
- 1...Bg2!
- threat
- 1.Se5?
- threat
- 2.Rf5#
- 2.Qxd8#
- 1...Be4+
- 2.Sxe4#
- 1...Qxd4
- 2.Rf5#
- 1...Rxd4
- 2.Rf5#
- 1...Rxe5
- 2.Qxd8#
- 1...Bxd4
- 2.Rf5#
- 1...Sf7
- 2.Sxf7#
- 1...Qa3
- 2.Rf5#
- 1...Qb4
- 2.Rf5#
- 1...Qb6
- 2.Rf5#
- 1...Qb7
- 2.Rf5#
- 1...Qb8
- 2.Rf5#
- 1...Rd5
- 2.Sdf3#
- 2.Se4#
- 2.Sef3#
- 2.Rf5#
- 1...Ra7
- 2.Rf5#
- 1...Bd5
- 2.Rf5#
- 1...Sc6
- 2.Sdf3#
- 2.Se4#
- 2.Sef3#
- 2.Sf7#
- 2.Rf5#
- 1...Sb7
- 2.Sdf3#
- 2.Se4#
- 2.Sef3#
- 2.Sf7#
- 2.Rf5#
- 1...g6
- 2.Qxd8#
- 1...Sxe6!
- threat
- 1.Qxg1+?
- 1...Bg2
- 2.Sf3#
- 1...Rg4!
- 1...Bg2
- 1.Qe3+?
- 1...Rf4
- 2.Qxf4#
- 1...Bxe3!
- 1...Rf4
- 1.Qd5+?
- 1...Qe5
- 2.Sf3#
- 1...Rxd5
- 2.Sf3#
- 1...Bxd5!
- 1...Qe5
- 1.Sf4?
- Keys
- 1.e4!
- threat
- 2.Sf3#
- 2.Qxg1#
- 1...Qxd4
- 2.Sf3#
- 1...Qxd2
- 2.Qxd8#
- 1...Rxd4
- 2.Sf3#
- 1...Bxd4
- 2.Sf3#
- 1...Bxe4
- 2.Sxe4#
- 1...Sxe6
- 2.Qxg1#
- 1...Rf5
- 2.Qxg1#
- 1...Qa1
- 2.Sf3#
- 1...Qc1
- 2.Sf3#
- 2.Qxd8#
- 1...Qb1
- 2.Sf3#
- 2.Qxd8#
- 1...Qb6
- 2.Sf3#
- 1...Qb8
- 2.Sf3#
- 1...Ra1
- 2.Sf3#
- 1...Bf2
- 2.Sf3#
- 1...Bh2
- 2.Sf3#
- 1...Be3
- 2.Sf3#
- 2.Qxe3#
- 1...Sf7
- 2.Sf3#
- threat
- 1.e4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 11
- REMOVED MATES = 11
- Sets
- Q(b);N_GUARD::QAB(C),XS(k)
- Q(b);N_GUARD,XS(A)::QAB(C),XS(k)
- R(f);S_CUTQ(b)::QAB(C),XS(k)
- R(f);N_GUARD::R1(G),XR(f)
- R(f);N_GUARD::R1(G)
- B(j);N_GUARD::S(A),XB(j)
- B(j);N_GUARD,P_PINS(E)::S(A),XB(j)
- B(j);S_CUTR(f)::R1(G)
- Tries
- Try
- S(E);
- Threat
- S(E)
- Vars
- B(j);CHECK,N_GUARD::S(A),XB(j)
- P(e);::S(E),XP(e)
- Refutation
- B(j);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- B(j);CHECK,N_GUARD::S(A),XB(j)
- Q(b);XQ(C)::R1(G)
- R(d);XQ(C)::R1(G)
- R(f);XS(E)::QAB(C),XS(k)
- B(a);XQ(C)::R1(G)
- S(k);N_GUARD::S(E),XS(k)
- Q(b);::R1(G)
- R(f);::R1(G)
- B(j);::R1(G)
- P(i);::QAB(C),XS(k)
- Refutation
- S(k);XB(D)
- Try
- Q(C);CHECK,XB(a)
- Vars
- B(j);P_SPINB(j)::S(A)
- Refutation
- R(d);P_SPINR(d)
- Try
- Q(C);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::QAB1(C),XR(d)
- Refutation
- B(a);XQ(C)
- Try
- Q(C);CHECK
- Vars
- Q(b);P_SPINQ(b)::S(A)
- R(f);XQ(C)::S(A)
- Refutation
- B(j);XQ(C)
- Try
- Actual
- P(B);
- Threat
- DUALS(2)
- Vars
- Q(b);XQ(C)::S(A)
- Q(b);N_GUARD,XS(A)::QAB(C),XS(k)
- R(d);XQ(C)::S(A)
- B(a);XQ(C)::S(A)
- B(j);P_PINS(E),XP(B)::S(A),XB(j)
- S(k);XB(D)::QAR(C),XB(a)
- R(f);::QAR(C),XB(a)
- Q(b);::S(A)
- R(d);::S(A)
- B(a);::S(A)
- S(k);::S(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).