MESON Chess Problem Database
Problem Display
PID: 53047 (8/3N4/1p5B/2ppp3/5r2/1B1kPp1R/1P3Q2/5K2 w - - 0 1)
den Hertog, Herman Johannes
Tijdschrift vd NSB, 1893
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Ke4
- 2.Bc2#
- 1...Ra4
- 2.Qc2#
- 1...Rb4
- 2.Qc2#
- 1...Rd4
- 2.Qc2#
- 1...Re4
- 2.Qc2#
- 1...Rg4
- 2.Qc2#
- 1...Rh4
- 2.Qc2#
- 1...Rf5
- 2.Qc2#
- 1...Rf6
- 2.Qc2#
- 1...Rf7
- 2.Qc2#
- 1...Rf8
- 2.Qc2#
- 1...c4
- 2.Bc2#
- 1...e4
- 2.Se5#
- 1...b5
- 2.Sxc5#
- 1...Ke4
- Tries
- 1.Sxb6?
- threat
- 2.Bc2#
- 1...Ke4
- 2.Bc2#
- 1...Rc4!
- threat
- 1.Bxf4?
- threat
- 2.Qc2#
- 1...Ke4
- 2.Bc2#
- 2.Qc2#
- 1...exf4!
- threat
- 1.Rh4?
- 1...Ke4
- 2.Bc2#
- 1...Rxh4
- 2.Qc2#
- 1...Rc4
- 2.Sxe5#
- 1...Ra4
- 2.Sxe5#
- 2.Bc2#
- 2.Qc2#
- 1...Rb4
- 2.Sxe5#
- 2.Bc2#
- 2.Qc2#
- 1...Rd4
- 2.Sxe5#
- 2.Qc2#
- 1...Re4
- 2.Qc2#
- 1...Rg4
- 2.Qc2#
- 1...Rf5
- 2.Bc2#
- 2.Qc2#
- 1...Rf6
- 2.Sxe5#
- 2.Bc2#
- 2.Qc2#
- 1...Rf7
- 2.Sxe5#
- 2.Bc2#
- 2.Qc2#
- 1...Rf8
- 2.Sxe5#
- 2.Bc2#
- 2.Qc2#
- 1...c4
- 2.Bc2#
- 1...e4
- 2.Se5#
- 1...b5
- 2.Sxc5#
- 1...d4!
- 1...Ke4
- 1.Qd2+?
- 1...Ke4
- 2.Bc2#
- 1...Kxd2!
- 1...Ke4
- 1.Qe2+?
- 1...Ke4
- 2.Bc2#
- 1...fxe2+!
- 1...Ke4
- 1.exf4?
- 1...Ke4
- 2.Bc2#
- 1...c4
- 2.Bc2#
- 1...d4
- 2.Qe2#
- 1...e4
- 2.Se5#
- 1...b5
- 2.Sxc5#
- 1...exf4!
- 1...Ke4
- 1.Sxb6?
- Keys
- 1.e4!
- 1...Kxe4
- 2.Bc2#
- 1...Rxe4
- 2.Qd2#
- 1...dxe4
- 2.Sxe5#
- 1...Rg4
- 2.Qe3#
- 1...Rh4
- 2.Qe3#
- 1...Rf5
- 2.Qe3#
- 1...Rf6
- 2.Qe3#
- 1...Rf7
- 2.Qe3#
- 1...Rf8
- 2.Qe3#
- 1...c4
- 2.Bc2#
- 1...d4
- 2.Qe2#
- 1...b5
- 2.Sxc5#
- 1...Kxe4
- 1.e4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 7
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- K(a);S_FLIGHT::B(D)
- R(c);::QAB1(C)
- R(c);SBLOCK::QAB1(C)
- P(d);SBLOCK::B(D)
- P(f);SBLOCK::S(H)
- P(g);N_GUARD::S(H),XP(d)
- Tries
- Try
- S(H);XP(g)
- Threat
- B(D)
- Vars
- K(a);S_FLIGHT::B(D)
- Refutation
- R(c);
- Try
- B(G);XR(c)
- Threat
- QAB1(C)
- Refutation
- P(f);XB(G)
- Try
- R(F);
- Vars
- K(a);P_SPINR(c),S_FLIGHT::B(D)
- R(c);XR(F)::QAB1(C)
- R(c);::S(H),XP(f)
- R(c);::QAB1(C)
- P(d);SBLOCK::B(D)
- P(f);SBLOCK::S(H)
- P(g);N_GUARD::S(H),XP(d)
- Refutation
- P(e);
- Try
- Q(C);CHECK
- Vars
- K(a);S_FLIGHT::B(D)
- Refutation
- K(a);P-FLIGHT,XQ(C)
- Try
- Q(C);CHECK
- Vars
- K(a);S_FLIGHT::B(D)
- Refutation
- P(b);CHECK,XQ(C)
- Try
- P(E);P_PINP(b),XR(c)
- Vars
- K(a);N_SPINP(b),S_FLIGHT::B(D)
- P(d);SBLOCK::B(D)
- P(e);SBLOCK::QAB1(C)
- P(f);SBLOCK::S(H)
- P(g);N_GUARD::S(H),XP(d)
- Refutation
- P(f);XP(E)
- Try
- Actual
- P(E);P_PINP(b)
- Vars
- K(a);N_SPINP(b),S_FLIGHT,XP(E)::B(D)
- R(c);SBLOCK,XP(E)::QAR1(C)
- P(e);SBLOCK,XP(E)::S(H),XP(f)
- R(c);::QAR1(C)
- P(d);SBLOCK::B(D)
- P(e);SBLOCK::QAB1(C)
- P(g);N_GUARD::S(H),XP(d)
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).