MESON Chess Problem Database
Problem Display
PID: 110748 (2n5/8/8/3p1N2/2pPkNP1/1pP1P2R/bP2nR1p/K3Q1br w - - 0 1)
Hartong, Jan
1st HM., Jaarboek, 1943
#2
11 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bxf2
- 2.Qxh1#
- 1...Bb1
- 2.Qxb1#
- 1...Sc1
- 2.Sg3#
- 1...Sxc3
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sxd4
- 2.exd4#
- 1...Sxf4
- 2.exf4#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Se7
- 2.Sd6#
- 1...Bxf2
- Tries
- 1.Se6?
- threat
- 2.Sc5#
- 1...Sxd4
- 2.exd4#
- 1...Kd3!
- threat
- 1.Sg3+?
- 1...Kxe3
- 2.Qxe2#
- 1...Sxg3!
- 1...Kxe3
- 1.Rxe2?
- 1...Bf2
- 2.Qxh1#
- 1...Bb1
- 2.Qxb1#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Se7
- 2.Sd6#
- 1...Bxe3!
- 1...Bf2
- 1.Rhf3?
- 1...Sxc3
- 2.Sg3#
- 1...Sxd4
- 2.exd4#
- 1...Sxf4
- 2.exf4#
- 1...Sc1
- 2.Sg3#
- 1...Bb1
- 2.Qxb1#
- 1...Sg3
- 2.Sxg3#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Se7
- 2.Sd6#
- 1...Bxf2!
- 1...Sxc3
- 1.Rh6?
- threat
- 2.Re6#
- 1...Bxf2
- 2.Qxh1#
- 1...Sxd4
- 2.exd4#
- 1...Sxf4!
- threat
- 1.Rh7?
- 1...Bxf2
- 2.Qxh1#
- 1...Sxc3
- 2.Sg3#
- 1...Sxd4
- 2.exd4#
- 1...Sc1
- 2.Sg3#
- 1...Bb1
- 2.Qxb1#
- 1...Sg3
- 2.Sxg3#
- 1...Sb6
- 2.Re7#
- 1...Sd6
- 2.Re7#
- 1...Sa7
- 2.Re7#
- 1...Se7
- 2.Rxe7#
- 1...Sxf4!
- 1...Bxf2
- 1.Qf1?
- threat
- 2.Qg2#
- 1...Bxf2
- 2.Qxh1#
- 1...Sxf4
- 2.Rxf4#
- 1...Sxd4!
- threat
- 1.Se6?
- Keys
- 1.Qd1!
- 1...Bxf2
- 2.Qxh1#
- 1...Sxc3
- 2.Qf3#
- 1...Sxd4
- 2.Qxd4#
- 1...Sxf4
- 2.Rxf4#
- 1...Sc1
- 2.Qf3#
- 1...Bb1
- 2.Qxb1#
- 1...Sg3
- 2.Qf3#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Se7
- 2.Sd6#
- 1...Bxf2
- 1.Qd1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(a);OGATE,P_PINQ(B),XR(D)::QAB(B),XR(b)
- B(c);N_GUARD::QAB(B),XB(c)
- S(d);N_GUARD::S(K)
- S(d);N_GUARD,XP(E)::S(K)
- S(d);N_GUARD::S(K),XS(d)
- S(d);OGATE,XP(H)::QAR(B)+P(F),XS(d)
- S(d);OGATE,XS(I)::QAR(B)+P(F),XS(d)
- S(j);N_GUARD::S(K)
- S(j);N_GUARD::S(K),XS(j)
- Tries
- Try
- S(I);
- Threat
- S(I)
- Vars
- S(d);OGATE,XP(H)::QAR(B)+P(F),XS(d)
- Refutation
- K(h);S_FLIGHT
- Try
- S(K);CHECK
- Vars
- K(h);P-FLIGHT,P_SPINS(d),XP(F)::QAR1(B),XS(d)
- Refutation
- S(d);XS(K)
- Try
- R(D);XS(d)
- Vars
- B(a);OGATE,P_PINQ(B)::QAB(B),XR(b)
- B(c);N_GUARD::QAB(B),XB(c)
- S(j);N_GUARD::S(K)
- S(j);N_GUARD::S(K),XS(j)
- Refutation
- B(a);P_PINQ(B),P_SPINB(a),XP(F)
- Try
- R(G);
- Vars
- S(d);N_GUARD,XP(E)::S(K)
- S(d);OGATE,XP(H)::QAR(B)+P(F),XS(d)
- S(d);OGATE,XS(I)::QAR(B)+P(F),XS(d)
- S(d);N_GUARD::S(K)
- B(c);N_GUARD::QAB(B),XB(c)
- S(d);N_GUARD::S(K),XS(d)
- S(j);N_GUARD::S(K)
- S(j);N_GUARD::S(K),XS(j)
- Refutation
- B(a);P_PINQ(B),XR(D)
- Try
- R(G);
- Threat
- R(G)
- Vars
- B(a);OGATE,P_PINQ(B),XR(D)::QAB(B),XR(b)
- S(d);OGATE,XP(H)::QAR(B)+P(F),XS(d)
- Refutation
- S(d);XS(I)
- Try
- R(G);
- Vars
- B(a);OGATE,P_PINQ(B),XR(D)::QAB(B),XR(b)
- S(d);N_GUARD,XP(E)::S(K)
- S(d);OGATE,XP(H)::QAR(B)+P(F),XS(d)
- S(d);N_GUARD::S(K)
- B(c);N_GUARD::QAB(B),XB(c)
- S(d);N_GUARD::S(K),XS(d)
- S(j);N_GUARD::R(G)
- S(j);N_GUARD::R(G),XS(j)
- Refutation
- S(d);XS(I)
- Try
- Q(B);
- Threat
- QAB(B)
- Vars
- B(a);OGATE,P_PINQ(B),XR(D)::QAB(B),XR(b)
- S(d);OGATE,XS(I)::R1(D),XS(d)
- Refutation
- S(d);XP(H)
- Try
- Actual
- Q(B);
- Vars
- B(a);OGATE,P_PINQ(B),XR(D)::QAB(B),XR(b)
- S(d);OGATE,XP(E)::QAB1(B)
- S(d);OGATE,XP(H)::QAR1(B),XS(d)
- S(d);OGATE,XS(I)::R1(D),XS(d)
- S(d);OGATE::QAB1(B)
- B(c);N_GUARD::QAB(B),XB(c)
- S(j);N_GUARD::S(K)
- S(j);N_GUARD::S(K),XS(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).