MESON Chess Problem Database
Problem Display
PID: 201567 (8/4N3/p3p3/K6p/4knbR/2PN2Q1/2n2P2/6B1 w - - 0 1)
Mari, Alberto
Kagans Ty., 1922
#2
8 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bd1
- 2.Rxf4#
- 1...Be2
- 2.Rxf4#
- 1...Bf3
- 2.Qg6#
- 1...Bh3
- 2.Rxf4#
- 1...Bf5
- 2.Rxf4#
- 1...Sa1
- 2.Qe3#
- 1...Se1
- 2.Qe3#
- 1...Sa3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sb4
- 2.Qe3#
- 1...Sd4
- 2.Qe3#
- 1...Se2
- 2.Sc5#
- 1...Sg2
- 2.Sc5#
- 1...Sxd3
- 2.f3#
- 1...Sh3
- 2.Sc5#
- 1...Sd5
- 2.Sc5#
- 1...Sg6
- 2.Sc5#
- 1...e5
- 2.Sc5#
- 1...Bd1
- Tries
- 1.Ka4?
- 1...Sxd3
- 2.f3#
- 1...Bf3
- 2.Qg6#
- 1...Se3
- 2.Qxe3#
- 1...Bd1
- 2.Rxf4#
- 1...Be2
- 2.Rxf4#
- 1...Bh3
- 2.Rxf4#
- 1...Bf5
- 2.Rxf4#
- 1...Sa1
- 2.Qe3#
- 1...Se1
- 2.Qe3#
- 1...Sa3
- 2.Qe3#
- 1...Sb4
- 2.Qe3#
- 1...Sd4
- 2.Qe3#
- 1...Se2
- 2.Sc5#
- 1...Sg2
- 2.Sc5#
- 1...Sh3
- 2.Sc5#
- 1...Sd5
- 2.Sc5#
- 1...Sg6
- 2.Sc5#
- 1...e5
- 2.Sc5#
- 1...a5!
- 1...Sxd3
- 1.Kxa6?
- 1...Sxd3
- 2.f3#
- 1...Bf3
- 2.Qg6#
- 1...Se3
- 2.Qxe3#
- 1...Bd1
- 2.Rxf4#
- 1...Be2
- 2.Rxf4#
- 1...Bh3
- 2.Rxf4#
- 1...Bf5
- 2.Rxf4#
- 1...Sa1
- 2.Qe3#
- 1...Se1
- 2.Qe3#
- 1...Sa3
- 2.Qe3#
- 1...Sd4
- 2.Qe3#
- 1...Se2
- 2.Sc5#
- 1...Sg2
- 2.Sc5#
- 1...Sh3
- 2.Sc5#
- 1...Sd5
- 2.Sc5#
- 1...Sg6
- 2.Sc5#
- 1...e5
- 2.Sc5#
- 1...Sb4+!
- 1...Sxd3
- 1.Se5?
- 1...Bd1
- 2.Qxf4#
- 1...Be2
- 2.Qxf4#
- 1...Bf3
- 2.Qxf4#
- 1...Bh3
- 2.Qxf4#
- 1...Bf5
- 2.Qxf4#
- 1...Sa1
- 2.Qe3#
- 1...Se1
- 2.Qe3#
- 1...Sa3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sb4
- 2.Qe3#
- 1...Sd4
- 2.Qe3#
- 1...Se2
- 2.f3#
- 1...Sg2
- 2.f3#
- 1...Sd3
- 2.f3#
- 1...Sh3
- 2.f3#
- 1...Sd5
- 2.f3#
- 1...Sg6
- 2.f3#
- 1...Kxe5!
- 1...Bd1
- 1.Rxg4?
- threat
- 2.Rxf4#
- 1...Se3
- 2.Qxe3#
- 1...e5
- 2.Sc5#
- 1...hxg4!
- threat
- 1.f3+?
- 1...Bxf3
- 2.Qg6#
- 1...Kxd3!
- 1...Bxf3
- 1.Ka4?
- Keys
- 1.Bh2!
- 1...Sxd3
- 2.Qg2#
- 1...Bf3
- 2.Qg6#
- 1...Se3
- 2.Qxe3#
- 1...e5
- 2.Sc5#
- 1...Bd1
- 2.Rxf4#
- 1...Be2
- 2.Rxf4#
- 1...Bh3
- 2.Rxf4#
- 1...Bf5
- 2.Rxf4#
- 1...Sa1
- 2.Qe3#
- 1...Se1
- 2.Qe3#
- 1...Sa3
- 2.Qe3#
- 1...Sb4
- 2.Qe3#
- 1...Sd4
- 2.Qe3#
- 1...Se2
- 2.Sc5#
- 1...Sg2
- 2.Sc5#
- 1...Sh3
- 2.Sc5#
- 1...Sd5
- 2.Sc5#
- 1...Sg6
- 2.Sc5#
- 1...Sxd3
- 1.Bh2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(d);OGATE,P_SPINS(c)::R1(F),XS(c)
- B(d);OGATE,P_SPINS(c),SBLOCK::QAB(E)
- S(a);N_GUARD::QAR1(E)
- S(a);N_GUARD::QAR1(E),XS(a)
- S(c);P_SPINB(d)::S(D)
- S(c);P_SPINB(d),SBLOCK,XS(D)::P(B)
- P(g);SBLOCK::S(D)
- Tries
- Try
- K(G);P-FLIGHT
- Vars
- S(c);P_SPINB(d),SBLOCK,XS(D)::P(B)
- B(d);OGATE,P_SPINS(c),SBLOCK::QAB(E)
- S(a);N_GUARD::QAR1(E),XS(a)
- B(d);OGATE,P_SPINS(c)::R1(F),XS(c)
- S(a);N_GUARD::QAR1(E)
- S(c);P_SPINB(d)::S(D)
- P(g);SBLOCK::S(D)
- Refutation
- P(f);
- Try
- K(G);P-FLIGHT,XP(f)
- Vars
- S(c);P_SPINB(d),SBLOCK,XS(D)::P(B)
- B(d);OGATE,P_SPINS(c),SBLOCK::QAB(E)
- S(a);N_GUARD::QAR1(E),XS(a)
- B(d);OGATE,P_SPINS(c)::R1(F),XS(c)
- B(d);OGATE,P_PINS(D),P_SPINS(c)::R1(F),XS(c)
- S(a);N_GUARD::QAR1(E)
- S(c);P_SPINB(d)::S(D)
- P(g);SBLOCK::S(D)
- Refutation
- S(a);CHECK
- Try
- S(D);
- Vars
- B(d);P_SPINS(c)::QAR1(E),XS(c)
- S(a);N_GUARD::QAR1(E)
- S(a);N_GUARD::QAR1(E),XS(a)
- S(c);P_SPINB(d)::P(B)
- Refutation
- K(b);P-FLIGHT,P_SPINS(c),XS(D)
- Try
- R(F);P_PINS(c),XB(d)
- Threat
- R1(F),XS(c)
- Vars
- S(a);N_GUARD::QAR1(E),XS(a)
- P(g);SBLOCK::S(D)
- Refutation
- P(e);N_SPINS(c),XR(F)
- Try
- P(B);CHECK
- Vars
- B(d);OGATE,P_SPINS(c),SBLOCK,XP(B)::QAB(E)
- Refutation
- K(b);S_FLIGHT,XS(D)
- Try
- Actual
- B(A);
- Vars
- S(c);N_GUARD,P_SPINB(d),SBLOCK,XS(D)::QAB(E)
- B(d);OGATE,P_SPINS(c),SBLOCK::QAB(E)
- S(a);N_GUARD::QAR1(E),XS(a)
- P(g);SBLOCK::S(D)
- B(d);OGATE,P_SPINS(c)::R1(F),XS(c)
- S(a);N_GUARD::QAR1(E)
- S(c);P_SPINB(d)::S(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).