MESON Chess Problem Database
Problem Display
PID: 176255 (1B3Qn1/3N1q2/6Pr/pK2R3/Rb3kpP/4p1n1/6P1/1bN5 w - - 0 1)
Hoek, Willem
Schach-Echo, 1972
#2
10 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Ba2
- 2.Sd3#
- 1...Bd3+
- 2.Sxd3#
- 1...Be4
- 2.Rc5#
- 1...Bf5
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...Sf1
- 2.Se2#
- 1...Sh1
- 2.Se2#
- 1...Se2
- 2.Sxe2#
- 1...Se4
- 2.Se2#
- 1...Sf5
- 2.Se2#
- 1...Sh5
- 2.Se2#
- 1...Sf6
- 2.Qxh6#
- 1...Se7
- 2.Qxh6#
- 1...Ba2
- Tries
- 1.Sc5?
- threat
- 2.Se6#
- 2.Rd5#
- 2.Rg5#
- 2.Rh5#
- 1...Bd3+
- 2.S1xd3#
- 2.S5xd3#
- 1...Qxf8
- 2.Se6#
- 1...Rxh4
- 2.Se6#
- 2.Rd5#
- 2.Rh5#
- 1...Sf1
- 2.Se2#
- 2.Rd5#
- 2.Rg5#
- 2.Rh5#
- 1...Sh1
- 2.Se2#
- 2.Rd5#
- 2.Rg5#
- 2.Rh5#
- 1...Se2
- 2.Sxe2#
- 2.Rd5#
- 2.Rg5#
- 2.Rh5#
- 1...Se4
- 2.Se2#
- 1...Sf5
- 2.Se2#
- 2.Re4#
- 1...Sh5
- 2.Se2#
- 2.Rd5#
- 2.Rg5#
- 2.Rxh5#
- 1...Qf5
- 2.Se6#
- 2.Re4#
- 2.Rd5#
- 2.Rxf5#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...Rh5
- 2.Se6#
- 2.Rg5#
- 2.Rxh5#
- 1...Ba2
- 2.S1d3#
- 2.S5d3#
- 2.Rd5#
- 2.Rg5#
- 2.Rh5#
- 1...Bf5
- 2.Re4#
- 2.Re7#
- 1...Sf6
- 2.Qxh6#
- 1...e2
- 2.Se6#
- 1...Rxg6!
- threat
- 1.Ba7?
- threat
- 2.Bxe3#
- 1...Bd3+
- 2.Sxd3#
- 1...Sf1
- 2.Se2#
- 1...Sh1
- 2.Se2#
- 1...Se2
- 2.Sxe2#
- 1...Se4
- 2.Se2#
- 1...Sf5
- 2.Se2#
- 1...Sh5
- 2.Se2#
- 1...e2
- 2.Be3#
- 1...Be4!
- threat
- 1.Rxb4+?
- 1...Be4
- 2.Sd3#
- 2.Rc5#
- 2.Rd5#
- 2.Rg5#
- 2.Rh5#
- 1...Se4
- 2.Se2#
- 2.Rc5#
- 2.Rd5#
- 2.Rg5#
- 2.Rh5#
- 1...axb4!
- 1...Be4
- 1.Qxf7+?
- 1...Bf5
- 2.Sd3#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...Sf5
- 2.Se2#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...Sf6!
- 1...Bf5
- 1.Sc5?
- Keys
- 1.Sb6!
- threat
- 2.Sd5#
- 1...Bd3+
- 2.Sxd3#
- 1...Sf1
- 2.Se2#
- 1...Sh1
- 2.Se2#
- 1...Se2
- 2.Sxe2#
- 1...Se4
- 2.Se2#
- 1...Sf5
- 2.Se2#
- 1...Sh5
- 2.Se2#
- 1...Ba2
- 2.Sd3#
- 1...Be4
- 2.Rc5#
- 1...Bf5
- 2.Re7#
- 1...Sf6
- 2.Qxh6#
- 1...Se7
- 2.Qxh6#
- threat
- 1.Sb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD::S(A)
- B(a);CHECK,N_GUARD::S(A),XB(a)
- B(a);N_SPINB(d),SBLOCK::B(I)+R(F)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- S(c);N_GUARD,N_SPINB(d)::S(A)
- S(c);N_GUARD,N_SPINQ(i)::S(A)
- S(j);N_GUARD,N_SPINQ(i)::QAB(J),XR(h)
- S(j);N_GUARD::QAB(J),XR(h)
- Tries
- Try
- S(H);
- Threat
- DUALS(4)
- Vars
- Q(i);N_SPINQ(i),XQ(J)::S(H)
- S(c);N_GUARD,N_SPINB(d)::S(A)
- S(j);N_GUARD,N_SPINQ(i)::QAB(J),XR(h)
- P(b);::S(H)
- Refutation
- R(h);XP(G)
- Try
- B(I);
- Threat
- B(I),XP(b)
- Vars
- B(a);CHECK,N_GUARD::S(A),XB(a)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- S(c);N_GUARD,N_SPINB(d)::S(A)
- S(c);N_GUARD,N_SPINQ(i)::S(A)
- P(b);::B(I)
- Refutation
- B(a);N_SPINB(d)
- Try
- R(C);CHECK,XB(d)
- Refutation
- P(g);XR(C)
- Try
- Q(J);CHECK,XQ(i)
- Refutation
- S(j);P_SPINS(j)
- Try
- Actual
- S(H);
- Threat
- S(H)
- Vars
- B(a);CHECK,N_GUARD::S(A),XB(a)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- S(c);N_GUARD,N_SPINB(d)::S(A)
- S(c);N_GUARD,N_SPINQ(i)::S(A)
- B(a);N_GUARD::S(A)
- B(a);N_SPINB(d),SBLOCK::B(I)+R(F)
- B(a);N_SPINQ(i),SBLOCK::B(I)+R(F)
- S(j);N_GUARD,N_SPINQ(i)::QAB(J),XR(h)
- S(j);N_GUARD::QAB(J),XR(h)
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).