MESON Chess Problem Database
Problem Display
PID: 175881 (8/5P2/1pK2Q2/4p1r1/nRN1k1P1/3pPp1r/1N4P1/2q3B1 w - - 0 1)
Moen, Kabe
The Problemist Supplement, 2018
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Qxb2
- 2.Sxb2#
- 2.Sd2#
- 2.Sd6#
- 1...Qd2
- 2.Sxd2#
- 2.Sd6#
- 1...Qxe3
- 2.Sd2#
- 2.Sxe3#
- 2.Sd6#
- 1...Qa1
- 2.Sd2#
- 2.Sa3#
- 2.Sa5#
- 2.Sxe5#
- 2.Sxb6#
- 2.Sd6#
- 1...Qb1
- 2.Sd2#
- 2.Sa3#
- 2.Sa5#
- 2.Sxe5#
- 2.Sxb6#
- 2.Sd6#
- 1...Qd1
- 2.Sd2#
- 2.Sa3#
- 2.Sa5#
- 2.Sxe5#
- 2.Sxb6#
- 2.Sd6#
- 1...Qe1
- 2.Sd2#
- 2.Sd6#
- 1...Qf1
- 2.Sd2#
- 2.Sa3#
- 2.Sa5#
- 2.Sxe5#
- 2.Sxb6#
- 2.Sd6#
- 1...Qxc4+
- 2.Rxc4#
- 1...Rh1
- 2.Qxf3#
- 2.gxf3#
- 1...Rh2
- 2.Qxf3#
- 2.gxf3#
- 1...Rh4
- 2.Qxf3#
- 2.gxf3#
- 1...Rhh5
- 2.Qxf3#
- 2.gxf3#
- 1...Rh6
- 2.gxf3#
- 1...Rh7
- 2.Qxf3#
- 2.gxf3#
- 1...Rh8
- 2.Qxf3#
- 2.gxf3#
- 1...Rxg4
- 2.Qxe5#
- 1...Rf5
- 2.Qxf5#
- 1...Rg6
- 2.Qxg6#
- 1...Rg7
- 2.Qxe5#
- 2.Qf5#
- 1...Rg8
- 2.Qxe5#
- 2.Qf5#
- 1...Sc3
- 2.Sd2#
- 2.Sa3#
- 2.Sa5#
- 2.Sxe5#
- 2.Sxb6#
- 2.Sd6#
- 1...Sc5
- 2.Sd2#
- 2.Sd6#
- 1...Qxb2
- Tries
- 1.Kb7?
- threat
- 2.Qc6#
- 1...Kd5
- 2.Qc6#
- 1...Qxe3
- 2.Sxe3#
- 1...Rxg4
- 2.Qxe5#
- 1...Rh6
- 2.Qxf3#
- 1...Rg6
- 2.Qxe5#
- 1...Sc3
- 2.Sxb6#
- 1...Sc5+!
- threat
- 1.Kd7?
- threat
- 2.Qc6#
- 1...Kd5
- 2.Qc6#
- 1...Qxe3
- 2.Sxe3#
- 1...Rxg4
- 2.Qxe5#
- 1...Rh6
- 2.Qxf3#
- 1...Rg6
- 2.Qxe5#
- 1...Sc3
- 2.Sxb6#
- 1...Sc5+!
- threat
- 1.Sd1?
- threat
- 2.Sf2#
- 1...Qxc4+
- 2.Rxc4#
- 1...Qxe3
- 2.Sd2#
- 2.Scxe3#
- 2.Sd6#
- 1...Qxd1
- 2.Sb2#
- 2.Sd2#
- 2.Sa3#
- 2.Sa5#
- 2.Sxe5#
- 2.Sxb6#
- 2.Sd6#
- 1...Qb2
- 2.Scxb2#
- 2.Sd2#
- 2.Sd6#
- 1...Qd2
- 2.Sxd2#
- 2.Sd6#
- 1...f2
- 2.Sxf2#
- 1...Qc2!
- threat
- 1.Qd6?
- threat
- 2.Qxd3#
- 2.Qd5#
- 1...Qxc4+
- 2.Rxc4#
- 1...Qxb2
- 2.Sxb2#
- 2.Sd2#
- 2.Qd5#
- 1...Qxe3
- 2.Sd2#
- 2.Sxe3#
- 1...Rxg4
- 2.Qxe5#
- 2.Qxd3#
- 1...Sxb2
- 2.Qd5#
- 1...fxg2
- 2.Qd5#
- 1...Qd2
- 2.Sxd2#
- 2.Qd5#
- 1...Qb1
- 2.Sd2#
- 2.Sa3#
- 2.Sa5#
- 2.Sxe5#
- 2.Sxb6#
- 2.Qd5#
- 1...Qd1
- 2.Sd2#
- 2.Sa3#
- 2.Sa5#
- 2.Sxe5#
- 2.Sxb6#
- 2.Qd5#
- 1...Qf1
- 2.Sd2#
- 2.Sa3#
- 2.Sa5#
- 2.Sxe5#
- 2.Sxb6#
- 2.Qd5#
- 1...Qc2
- 2.Qd5#
- 1...Qc3
- 2.Qd5#
- 1...Rg6
- 2.Qxg6#
- 1...Sc3
- 2.Sd2#
- 2.Sa3#
- 2.Sa5#
- 2.Sxe5#
- 2.Sxb6#
- 2.Qxd3#
- 1...Sc5
- 2.Sd2#
- 2.Qd5#
- 1...d2
- 2.Qd3#
- 2.Qd5#
- 1...Rh6!
- threat
- 1.Qe6?
- threat
- 2.Qd5#
- 1...Qxc4+
- 2.Rxc4#
- 2.Qxc4#
- 1...Qxe3
- 2.Sd2#
- 2.Sxe3#
- 2.Sd6#
- 1...Rxg4
- 2.Qxg4#
- 2.Qxe5#
- 1...Rg6
- 2.Qxg6#
- 1...Sc3
- 2.Sd2#
- 2.Sa3#
- 2.Sa5#
- 2.Sxe5#
- 2.Sxb6#
- 2.Sd6#
- 1...Rh6!
- threat
- 1.Qg6+?
- 1...Rf5
- 2.Qxf5#
- 1...Rxg6+!
- 1...Rf5
- 1.Kb7?
- Keys
- 1.Kc7!
- threat
- 2.Qc6#
- 1...Kd5
- 2.Qc6#
- 1...Qxe3
- 2.Sxe3#
- 1...Rxg4
- 2.Qxe5#
- 1...Rh6
- 2.Qxf3#
- 1...Rg6
- 2.Qxe5#
- 1...Sc3
- 2.Sxb6#
- threat
- 1.Kc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- Q(a);CHECK,OGATE,P_SPINQ(a),XS(F)::R(E),XQ(a)
- R(d);N_GUARD,P_PINQ(I)::P(C),XP(c)
- R(h);N_GUARD,XP(G)::QAR1(I),XP(g)
- R(h);N_GUARD::QAB1(I),XR(h)
- R(h);N_GUARD,P_PINQ(I)::QAB(I),XR(h)
- Tries
- Try
- K(H);N_SPINS(F),S_FLIGHT
- Threat
- QAB(I)
- Vars
- K(f);S_FLIGHT::QAB1(I)
- Q(a);XP(D)::R(E)+S(F),XQ(a)
- R(h);N_GUARD,XP(G)::QAR1(I),XP(g)
- R(d);N_GUARD::QAB1(I),XP(c)
- R(h);N_GUARD::QAR1(I),XP(g)
- S(e);S_CUTQ(a)::R(E)+S(F),XP(i)
- Refutation
- S(e);CHECK
- Try
- K(H);N_SPINS(F),S_FLIGHT
- Threat
- QAB(I)
- Vars
- K(f);S_FLIGHT::QAB1(I)
- Q(a);XP(D)::R(E)+S(F),XQ(a)
- R(h);N_GUARD,XP(G)::QAR1(I),XP(g)
- R(d);N_GUARD::QAB1(I),XP(c)
- R(h);N_GUARD::QAR1(I),XP(g)
- S(e);S_CUTQ(a)::R(E)+S(F),XP(i)
- Refutation
- S(e);CHECK
- Try
- S(B);
- Threat
- S(B)
- Vars
- Q(a);CHECK,OGATE,P_SPINQ(a),XS(F)::R(E),XQ(a)
- P(c);::S(B),XP(c)
- Refutation
- Q(a);
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,OGATE,P_SPINQ(a),XS(F)::R(E),XQ(a)
- S(e);XS(B)::QAB1(I)
- P(c);XP(C)::QAB1(I)
- Q(a);::QAB1(I)
- R(h);N_GUARD,P_PINQ(I)::QAB(I),XR(h)
- Refutation
- R(d);P_PINQ(I)
- Try
- Q(I);P_PINP(g)
- Threat
- QAB1(I)
- Vars
- R(h);N_GUARD,P_PINQ(I)::QAB(I),XR(h)
- Refutation
- R(d);P_PINQ(I)
- Try
- Q(I);CHECK
- Vars
- R(h);N_GUARD,P_SPINR(h)::QAB1(I),XR(h)
- Refutation
- R(h);CHECK,XQ(I)
- Try
- Actual
- K(H);P-FLIGHT
- Threat
- QAB(I)
- Vars
- K(f);S_FLIGHT::QAB1(I)
- Q(a);N_PINS(F),XP(D)::R(E)+S(F),XQ(a)
- R(h);N_GUARD,XP(G)::QAR1(I),XP(g)
- R(d);N_GUARD::QAB1(I),XP(c)
- R(h);N_GUARD::QAR1(I),XP(g)
- S(e);N_PINS(F)::R(E)+S(F),XP(i)
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).