MESON Chess Problem Database
Problem Display
PID: 64389 (8/2p3R1/2p4K/4R3/p1Bp4/Pr1N1k1p/Q7/6nn w - - 0 1)
Schumer, Jacob
Chess Amateur (The), 1910
#2
7 + 9
SOLUTION
- SOUND
- Sets
- 1...Se2
- 2.Qxe2#
- 1...Sf2
- 2.Qxf2#
- 1...Sg3
- 2.Qf2#
- 1...h2
- 2.Qg2#
- 1...c5
- 2.Bd5#
- 1...Se2
- Tries
- 1.Bxb3?
- 1...Se2
- 2.Qxe2#
- 1...Sf2
- 2.Qxf2#
- 1...Sg3
- 2.Qf2#
- 1...h2
- 2.Qg2#
- 1...c5
- 2.Bd5#
- 1...axb3!
- 1...Se2
- 1.Bb5?
- threat
- 2.Bxc6#
- 1...Rxd3
- 2.Qf7#
- 1...Rxb5
- 2.Qf7#
- 1...Rc3
- 2.Qf7#
- 1...Sf2
- 2.Qxf2#
- 1...Sg3
- 2.Qf2#
- 1...c5
- 2.Bc6#
- 1...cxb5!
- threat
- 1.Ba6?
- 1...Rxa3
- 2.Qf7#
- 1...Rxd3
- 2.Qf7#
- 1...Rb1
- 2.Qf7#
- 1...Rb2
- 2.Qf7#
- 1...Rc3
- 2.Qf7#
- 1...Rb4
- 2.Qf7#
- 1...Rb5
- 2.Qf7#
- 1...Rb6
- 2.Qf7#
- 1...Rb7
- 2.Qf7#
- 1...Rb8
- 2.Qf7#
- 1...Se2
- 2.Qxe2#
- 1...Sf2
- 2.Qxf2#
- 1...Sg3
- 2.Qf2#
- 1...h2
- 2.Qg2#
- 1...c5!
- 1...Rxa3
- 1.Bf7?
- threat
- 2.Bh5#
- 1...Sf2
- 2.Qxf2#
- 1...Sg3
- 2.Qf2#
- 1...Rxd3!
- threat
- 1.Rf5+?
- 1...Ke3
- 2.Re7#
- 1...Ke4!
- 1...Ke3
- 1.Qd2?
- threat
- 2.Se1#
- 2.Qf4#
- 1...Rb1
- 2.Qf4#
- 1...Se2
- 2.Qxe2#
- 1...Sg3
- 2.Se1#
- 2.Qf2#
- 1...Rxd3!
- threat
- 1.Qh2?
- threat
- 2.Se1#
- 2.Qf4#
- 2.Qxh1#
- 1...Rb1
- 2.Qf4#
- 2.Qxh1#
- 1...Rb2
- 2.Se1#
- 2.Qf4#
- 1...Se2
- 2.Se1#
- 2.Qxh1#
- 2.Qxe2#
- 1...Sf2
- 2.Se1#
- 2.Rg3#
- 2.Qg3#
- 2.Qf4#
- 2.Qxf2#
- 1...Sg3
- 2.Rxg3#
- 2.Qxg3#
- 2.Qf2#
- 1...Rxd3!
- threat
- 1.Bxb3?
- Keys
- 1.Bg8!
- 1...Rxa3
- 2.Qf7#
- 1...Rxd3
- 2.Qf7#
- 1...Rb1
- 2.Qf7#
- 1...Rb2
- 2.Qf7#
- 1...Rc3
- 2.Qf7#
- 1...Rb4
- 2.Qf7#
- 1...Rb5
- 2.Qf7#
- 1...Rb6
- 2.Qf7#
- 1...Rb7
- 2.Qf7#
- 1...Rb8
- 2.Qf7#
- 1...Se2
- 2.Qxe2#
- 1...Sf2
- 2.Qxf2#
- 1...Sg3
- 2.Qf2#
- 1...h2
- 2.Qg2#
- 1...c5
- 2.Bd5#
- 1...Rxa3
- 1.Bg8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAB1(A),XS(a)
- S(b);N_GUARD::QAR1(A),XS(b)
- S(b);N_GUARD::QAR1(A)
- P(e);N_GUARD::QAB1(A)
- P(h);N_GUARD::B(D)
- Tries
- Try
- B(D);XR(c)
- Vars
- S(a);N_GUARD::QAB1(A),XS(a)
- S(b);N_GUARD::QAR1(A),XS(b)
- S(b);N_GUARD::QAR1(A)
- P(e);N_GUARD::QAB1(A)
- P(h);N_GUARD::B(D)
- Refutation
- P(f);XB(D)
- Try
- B(D);
- Threat
- B(D),XP(h)
- Vars
- R(c);OGATE,XS(C)::QAR(A)
- R(c);OGATE,XB(D)::QAR(A)
- R(c);OGATE::QAR(A)
- S(b);N_GUARD::QAR1(A),XS(b)
- S(b);N_GUARD::QAR1(A)
- P(h);::B(D)
- Refutation
- P(h);XB(D)
- Try
- B(D);
- Vars
- R(c);OGATE,XP(B)::QAR(A)
- R(c);OGATE,XS(C)::QAR(A)
- R(c);OGATE::QAR(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- S(b);N_GUARD::QAR1(A),XS(b)
- S(b);N_GUARD::QAR1(A)
- P(e);N_GUARD::QAB1(A)
- Refutation
- P(h);
- Try
- B(D);
- Threat
- B(D)
- Vars
- S(b);N_GUARD::QAR1(A),XS(b)
- S(b);N_GUARD::QAR1(A)
- Refutation
- R(c);XS(C)
- Try
- R(E);CHECK
- Vars
- K(d);P-FLIGHT::R(G)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(c);::QAR1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- Refutation
- R(c);XS(C)
- Try
- Q(A);
- Threat
- DUALS(3)
- Refutation
- R(c);XS(C)
- Try
- Actual
- B(D);
- Vars
- R(c);OGATE,XP(B)::QAR(A)
- R(c);OGATE,XS(C)::QAR(A)
- R(c);OGATE::QAR(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- S(b);N_GUARD::QAR1(A),XS(b)
- S(b);N_GUARD::QAR1(A)
- P(e);N_GUARD::QAB1(A)
- P(h);N_GUARD::B(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).