MESON Chess Problem Database
Problem Display
PID: 218538 (3n3Q/2N1p3/pKPkP1b1/2Nr2p1/1P4P1/2p5/2PbP3/3R4 w - - 0 1)
Hawkins, Xenophon
Detroit Free Press, 1881
#2
11 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rd4
- 2.Qxd4#
- 1...Rxc5
- 2.bxc5#
- 1...Re5
- 2.Qxd8#
- 1...Rf5
- 2.Se4#
- 1...Bc1
- 2.Rxd5#
- 1...Be1
- 2.Rxd5#
- 1...Be3
- 2.Rxd5#
- 1...Bf4
- 2.Rxd5#
- 1...Bxc2
- 2.Se8#
- 1...Bd3
- 2.Se8#
- 1...Be4
- 2.Sxe4#
- 2.Se8#
- 1...Bf5
- 2.Se8#
- 1...Bh5
- 2.Se4#
- 1...Bf7
- 2.Se4#
- 1...Bh7
- 2.Se8#
- 1...Be8
- 2.Se4#
- 2.Sxe8#
- 1...Sxc6
- 2.Sb7#
- 1...Sxe6
- 2.Sb7#
- 1...Sb7
- 2.Sxb7#
- 1...Sf7
- 2.Sb7#
- 2.Se8#
- 1...a5
- 2.Sb5#
- 1...Rd4
- Tries
- 1.Rxd2?
- threat
- 2.Rxd5#
- 2.Qh2#
- 1...Rxd2
- 2.Qh2#
- 1...Sxc6
- 2.Sb7#
- 2.Rxd5#
- 1...Sxe6
- 2.Sb7#
- 2.Rxd5#
- 1...Rd3
- 2.Qh2#
- 1...Rd4
- 2.Rxd4#
- 2.Qxd4#
- 2.Qh2#
- 1...Bd3
- 2.Se8#
- 1...Be4
- 2.Sxe4#
- 2.Se8#
- 2.Qh2#
- 1...Bh5
- 2.Se4#
- 2.Rxd5#
- 1...Bh7
- 2.Se8#
- 2.Rxd5#
- 1...Sf7
- 2.Sb7#
- 2.Se8#
- 2.Rxd5#
- 1...cxd2!
- threat
- 1.Qd4?
- threat
- 2.Qxd5#
- 1...Be4
- 2.Sxe4#
- 2.Se8#
- 1...Rxd4!
- threat
- 1.Qh2+?
- 1...Bf4
- 2.Rxd5#
- 1...Re5!
- 1...Bf4
- 1.Rxd2?
- Keys
- 1.e3!
- 1...Rxc5
- 2.bxc5#
- 1...Bxe3
- 2.Rxd5#
- 1...Bxc2
- 2.Se8#
- 1...Sxc6
- 2.Sb7#
- 1...Sxe6
- 2.Sb7#
- 1...Rd3
- 2.Qh2#
- 1...Rd4
- 2.Qxd4#
- 1...Re5
- 2.Qxd8#
- 1...Rf5
- 2.Se4#
- 1...Bc1
- 2.Rxd5#
- 2.Qh2#
- 1...Be1
- 2.Rxd5#
- 1...Bd3
- 2.Se8#
- 1...Be4
- 2.Sxe4#
- 2.Se8#
- 1...Bf5
- 2.Se8#
- 1...Bh5
- 2.Se4#
- 1...Bf7
- 2.Se4#
- 1...Bh7
- 2.Se8#
- 1...Be8
- 2.Se4#
- 2.Sxe8#
- 1...Sb7
- 2.Sxb7#
- 1...Sf7
- 2.Sb7#
- 2.Se8#
- 1...a5
- 2.Sb5#
- 1...Rxc5
- 1.e3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- R(c);OGATEB::QAR2(K),XR(c)
- R(c);OGATE,P_SPINB(a),XS(F)::P(D),XR(c)
- R(c);P_SPINB(a),SBLOCK::QAR2(K),XS(i)
- R(c);P_SPINB(a),S_CUTB(g)::S(F)
- B(a);OGATE,P_SPINR(c)::R1(A),XR(c)
- B(a);OGATE,P_PINS(F),P_SPINR(c)::R1(A),XR(c)
- B(g);N_GUARD,XP(B)::S(J)
- B(g);N_GUARD::S(J)
- B(g);N_GUARD::S(F)
- S(i);N_GUARD,XP(H)::S(F)
- S(i);N_GUARD,XP(I)::S(F)
- S(i);N_GUARD::S(F),XS(i)
- P(e);N_GUARD::S(J)
- Tries
- Try
- R(A);P_PINR(c),XB(a)
- Threat
- DUALS(2)
- Vars
- R(c);N_SPINR(c),XR(A)::QAB(K)
- R(c);::QAB(K)
- B(g);N_GUARD,N_SPINR(c)::S(J)
- Refutation
- P(b);N_SPINR(c),XR(A)
- Try
- Q(K);P_PINR(c)
- Threat
- QAR1(K),XR(c)
- Refutation
- R(c);N_SPINR(c),XQ(K)
- Try
- Q(K);CHECK
- Vars
- B(a);OGATE,P_SPINB(a),P_SPINR(c)::R1(A),XR(c)
- Refutation
- R(c);P_SPINB(a),P_SPINR(c)
- Try
- Actual
- P(C);
- Vars
- R(c);OGATE,P_SPINB(a),XS(F)::P(D),XR(c)
- B(a);OGATE,P_PINS(F),P_SPINR(c),XP(C)::R1(A),XR(c)
- B(g);N_GUARD,XP(B)::S(J)
- S(i);N_GUARD,XP(H)::S(F)
- S(i);N_GUARD,XP(I)::S(F)
- R(c);N_GUARD::QAB(K)
- R(c);OGATEB::QAR2(K),XR(c)
- R(c);P_SPINB(a),SBLOCK::QAR2(K),XS(i)
- R(c);P_SPINB(a),S_CUTB(g)::S(F)
- B(a);OGATE,P_SPINR(c)::R1(A),XR(c)
- B(g);N_GUARD::S(J)
- B(g);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
- P(e);N_GUARD::S(J)
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).