MESON Chess Problem Database
Problem Display
PID: 9399 (8/bR6/QqN1B3/2k2K2/1N2p1R1/6B1/1n1P4/8 w - - 0 1)
Cornelis, HW
HM., La Strategie, 1902
#2
9 + 5
SOLUTION
- SOUND
- Sets
- 1...Qa5
- 2.Qxa5#
- 1...Qc7
- 2.Rb5#
- 2.Qb5#
- 1...Qd8
- 2.Rb5#
- 2.Qb5#
- 1...Qb5
- 2.Rxb5#
- 2.Qxb5#
- 1...Bb8
- 2.Qxb6#
- 1...Sd1
- 2.Qc4#
- 1...Sd3
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...e3
- 2.d4#
- 1...Qa5
- Tries
- 1.Kxe4?
- threat
- 2.Rg5#
- 2.d4#
- 1...Qxc6+
- 2.Qxc6#
- 1...Qc7
- 2.Rb5#
- 2.Qb5#
- 2.d4#
- 1...Qd8
- 2.Rb5#
- 2.Qb5#
- 1...Bb8
- 2.Qxb6#
- 2.d4#
- 1...Sd3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 2.d4#
- 1...Qxb4+!
- threat
- 1.Kg6?
- threat
- 2.Rg5#
- 1...Qc7
- 2.Rb5#
- 2.Qb5#
- 1...Qd8
- 2.Rb5#
- 2.Qb5#
- 1...Bb8
- 2.Qxb6#
- 1...Sd3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Qxc6!
- threat
- 1.Sd3+?
- 1...Kxc6
- 2.Rc7#
- 1...Sxd3
- 2.Qc4#
- 1...exd3!
- 1...Kxc6
- 1.Bf2+?
- 1...Kd6
- 2.Rd7#
- 1...e3!
- 1...Kd6
- 1.Rxe4?
- threat
- 2.d4#
- 1...Qd8
- 2.Rb5#
- 2.Qb5#
- 1...Sd3
- 2.Rc4#
- 2.Qc4#
- 1...Qxb4!
- threat
- 1.Rg5?
- threat
- 2.Kxe4#
- 2.Kg4#
- 2.Kf6#
- 2.Kg6#
- 1...Qxb4
- 2.Kg4#
- 2.Kf6#
- 2.Kg6#
- 1...Qc7
- 2.Rb5#
- 2.Qb5#
- 1...Qd8
- 2.Rb5#
- 2.Qb5#
- 1...Bb8
- 2.Qxb6#
- 1...Sd3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...e3
- 2.Ke4#
- 2.Kg4#
- 2.Kf6#
- 2.Kg6#
- 2.d4#
- 1...Qxc6!
- threat
- 1.Rxb6?
- threat
- 2.Rb5#
- 2.Qb5#
- 2.Qa5#
- 1...Sc4
- 2.Rb5#
- 2.Qb5#
- 1...Bxb6!
- threat
- 1.Qa5+?
- 1...Qb5
- 2.Rxb5#
- 2.Qxb5#
- 1...Qxa5!
- 1...Qb5
- 1.Kxe4?
- Keys
- 1.Sd4!
- 1...Qxe6+
- 2.Sxe6#
- 1...Kxb4
- 2.Bd6#
- 1...Kxd4
- 2.Bf2#
- 1...Qxb4
- 2.Qd6#
- 1...Qxa6
- 2.Sb3#
- 1...Qxb7
- 2.Qd6#
- 1...Qa5
- 2.Sb3#
- 2.Qd6#
- 1...Qc7
- 2.Sb3#
- 1...Qd8
- 2.Sb3#
- 1...Qb5
- 2.Qd6#
- 1...Qc6
- 2.Sb3#
- 1...Qd6
- 2.Sb3#
- 2.Qxd6#
- 1...Bb8
- 2.Qxb6#
- 1...Sd1
- 2.Qc4#
- 1...Sd3
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...e3
- 2.Sb3#
- 1...Qxe6+
- 1.Sd4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 10
- REMOVED MATES = 1
- Sets
- Q(d);N_GUARD::QAR2(F),XQ(d)
- B(e);N_GUARD::QAB1(F),XQ(d)
- S(a);N_GUARD::QAR1(F)
- S(a);N_GUARD::QAR1(F),XS(a)
- P(b);N_GUARD::P(A)
- Tries
- Try
- K(E);S_FLIGHT,XP(b)
- Threat
- DUALS(2)
- Vars
- Q(d);CHECK,OGATE,XS(G)::QAR1(F),XQ(d)
- S(a);N_GUARD::QAR1(F)
- Refutation
- Q(d);CHECK,XS(C)
- Try
- K(E);S_FLIGHT
- Threat
- R(D)
- Vars
- B(e);N_GUARD::QAB1(F),XQ(d)
- S(a);N_GUARD::QAR1(F)
- S(a);N_GUARD::QAR1(F),XS(a)
- Refutation
- Q(d);P_PINB(H),XS(G)
- Try
- S(C);CHECK
- Vars
- K(c);P-FLIGHT,P_SPINQ(d),XS(G)::R1(I)
- S(a);XS(C)::QAR1(F)
- Refutation
- P(b);XS(C)
- Try
- B(B);CHECK
- Vars
- K(c);S_FLIGHT::R1(I)
- Refutation
- P(b);P_SPINP(b)
- Try
- R(D);XP(b)
- Threat
- P(A)
- Refutation
- Q(d);XS(C)
- Try
- R(D);
- Threat
- DUALS(4)
- Vars
- B(e);N_GUARD::QAB1(F),XQ(d)
- S(a);N_GUARD::QAR1(F)
- S(a);N_GUARD::QAR1(F),XS(a)
- Refutation
- Q(d);XS(G)
- Try
- R(I);XQ(d)
- Threat
- DUALS(3)
- Refutation
- B(e);XR(I)
- Try
- Q(F);CHECK
- Refutation
- Q(d);XQ(F)
- Try
- Actual
- S(G);
- Vars
- Q(d);CHECK,XB(H)::S(G),XQ(d)
- K(c);P_SPINQ(d),S_FLIGHT,XS(C)::B(B)
- K(c);OGATEB,P_SPINP(b),S_FLIGHT,XS(G)::B(B)
- Q(d);OGATE,XS(C)::QAB1(F)
- Q(d);XQ(F)::S(G)
- Q(d);OGATE,XR(I)::QAB1(F)
- Q(d);::S(G)
- Q(d);OGATE::QAB1(F)
- B(e);N_GUARD::QAB1(F),XQ(d)
- S(a);N_GUARD::QAR1(F)
- S(a);N_GUARD::QAR1(F),XS(a)
- P(b);::S(G)
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).