MESON Chess Problem Database
Problem Display
PID: 198272 (8/6p1/3KRp2/2QN1kpP/6N1/3q3P/1prBpP2/1B1bR3 w - - 0 1)
Stimson, James Frank (Ua Tane)
Rivista del Club Argentino de Ajedrez, 1920
#2
11 + 9
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Qc4
- 2.Sge3#
- 2.Se7#
- 1...Qe4
- 2.Se7#
- 1...Qb5
- 2.Sge3#
- 2.Se7#
- 1...Qa6+
- 2.Sb6#
- 1...Qa3
- 2.Sb4#
- 2.Se7#
- 1...Qb3
- 2.Se7#
- 1...Qc3
- 2.Sxc3#
- 2.Se7#
- 1...Qe3
- 2.Sgxe3#
- 1...Qf3
- 2.Se7#
- 1...Qg3+
- 2.Sf4#
- 1...Qxh3
- 2.Sdxf6#
- 1...Qxd5+
- 2.Qxd5#
- 1...Rc1
- 2.Se3#
- 2.Bxd3#
- 1...Rxd2
- 2.Se3#
- 1...Rc3
- 2.Se3#
- 1...Rc4
- 2.Se3#
- 1...Rxc5
- 2.Se3#
- 2.Bxd3#
- 1...g6
- 2.Sh6#
- 1...Qc4
- Tries
- 1.Bxc2?
- threat
- 2.Se3#
- 2.Bxd3#
- 1...Qxc2
- 2.Sge3#
- 2.Sc3#
- 2.Se7#
- 1...b1Q
- 2.Se3#
- 1...b1B
- 2.Se3#
- 1...Qe4
- 2.Sge3#
- 2.Sc3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sdxf6#
- 2.Sc7#
- 2.Se7#
- 2.Bxe4#
- 1...Bxc2!
- threat
- 1.Re7?
- 1...Qa6+
- 2.Sb6#
- 1...Qg3+
- 2.Sf4#
- 1...Qxd5+
- 2.Qxd5#
- 1...Qxd2
- 2.Qc8#
- 1...Qxh3
- 2.Sdxf6#
- 2.Qc8#
- 1...Rxd2
- 2.Se3#
- 2.Qc8#
- 1...Rxc5
- 2.Se3#
- 2.Bxd3#
- 1...Qc4
- 2.Sge3#
- 1...Qb5
- 2.Sge3#
- 1...Qa3
- 2.Sb4#
- 1...Qb3
- 2.Qc8#
- 1...Qc3
- 2.Sxc3#
- 1...Qe3
- 2.Sgxe3#
- 1...Qf3
- 2.Qc8#
- 1...Qd4
- 2.Qc8#
- 1...Rc1
- 2.Se3#
- 2.Bxd3#
- 1...Rc3
- 2.Se3#
- 1...Rc4
- 2.Se3#
- 1...g6
- 2.Sh6#
- 1...Qe4!
- 1...Qa6+
- 1.Qxc2?
- threat
- 2.Se3#
- 2.Qxd3#
- 1...Qxc2
- 2.Sge3#
- 2.Se7#
- 1...Qe4
- 2.Sge3#
- 2.Se7#
- 2.Qxe4#
- 1...Bxc2!
- threat
- 1.Bxc2?
- Keys
- 1.Re8!
- 1...Qa6+
- 2.Sb6#
- 1...Qg3+
- 2.Sf4#
- 1...Qxd5+
- 2.Qxd5#
- 1...Qxd2
- 2.Qc8#
- 1...Qxh3
- 2.Sdxf6#
- 2.Qc8#
- 1...Rxd2
- 2.Se3#
- 2.Qc8#
- 1...Rxc5
- 2.Se3#
- 2.Bxd3#
- 1...Qe4
- 2.Se7#
- 1...Qc4
- 2.Sge3#
- 1...Qb5
- 2.Sge3#
- 1...Qa3
- 2.Sb4#
- 1...Qb3
- 2.Qc8#
- 1...Qc3
- 2.Sxc3#
- 1...Qe3
- 2.Sgxe3#
- 1...Qf3
- 2.Qc8#
- 1...Qd4
- 2.Qc8#
- 1...Rc1
- 2.Se3#
- 2.Bxd3#
- 1...Rc3
- 2.Se3#
- 1...Rc4
- 2.Se3#
- 1...g6
- 2.Sh6#
- 1...Qa6+
- 1.Re8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 6
- REMOVED MATES = 2
- Sets
- Q(e);N_PINS(H)::QAR(G)+S(H),DCHECK
- Q(e);CHECK,N_PINS(H),P_SPINR(c)::QAR(G)+S(H)
- Q(e);N_PINS(H),P_SPINR(c)::QAR(G)+S(H),DCHECK
- Q(e);N_GUARD,N_PINS(H),P_SPINR(c)::S(F),XQ(e)
- Q(e);N_PINS(H),P_SPINR(c),XP(E)::QAR(G)+S(H),XP(h)
- Q(e);CHECK,OGATE,P_SPINQ(e),P_SPINR(c),XS(H)::QAR2(G),XQ(e)
- R(c);P_SPINQ(e),XB(C)::S(F)
- R(c);P_SPINQ(e)::S(F)
- P(i);N_GUARD::S(F)
- Tries
- Try
- B(A);P_PINQ(e),XR(c)
- Threat
- DUALS(2)
- Vars
- P(b);::S(F)
- Refutation
- B(a);N_SPINQ(e),XB(A)
- Try
- R(K);
- Vars
- Q(e);CHECK,N_PINS(H),P_SPINR(c)::QAR(G)+S(H)
- Q(e);CHECK,OGATE,P_SPINQ(e),P_SPINR(c),XS(H)::QAR2(G),XQ(e)
- Q(e);P_SPINR(c),XB(C)::QAB(G)
- Q(e);N_GUARD,N_PINS(H),P_SPINR(c)::S(F)
- Q(e);N_PINS(H),P_PINQ(G),P_SPINR(c)::QAR(G)+S(H)
- Q(e);N_PINS(H),P_SPINR(c)::QAB(G)
- Q(e);N_PINS(H),P_SPINR(c)::QAR(G)+S(H),XQ(e)
- Q(e);N_GUARD,N_PINS(H),P_SPINR(c)::S(F),XQ(e)
- Q(e);P_SPINR(c)::QAB(G)
- R(c);P_SPINQ(e)::S(F)
- P(i);N_GUARD::S(F)
- Refutation
- Q(e);N_PINS(H)
- Try
- Q(G);P_PINQ(e),XR(c)
- Threat
- DUALS(2)
- Refutation
- B(a);N_SPINQ(e),XQ(G)
- Try
- Actual
- R(K);
- Vars
- Q(e);CHECK,N_PINS(H),P_SPINR(c)::QAR(G)+S(H)
- Q(e);CHECK,OGATE,P_SPINQ(e),P_SPINR(c),XS(H)::QAR2(G),XQ(e)
- Q(e);P_SPINR(c),XB(C)::QAB(G)
- Q(e);N_PINS(H),SBLOCK::QAR(G)+S(H),DCHECK
- Q(e);N_GUARD,N_PINS(H),P_SPINR(c)::S(F)
- Q(e);N_PINS(H),P_PINQ(G),P_SPINR(c)::QAR(G)+S(H)
- Q(e);N_PINS(H),P_SPINR(c)::QAB(G)
- Q(e);N_PINS(H),P_SPINR(c)::QAR(G)+S(H),XQ(e)
- Q(e);N_GUARD,N_PINS(H),P_SPINR(c)::S(F),XQ(e)
- Q(e);P_SPINR(c)::QAB(G)
- R(c);P_SPINQ(e)::S(F)
- P(i);N_GUARD::S(F)
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).