MESON Chess Problem Database
Problem Display
PID: 2308 (8/8/1n6/5Q2/N1N1R3/2Pk4/6b1/bK6 w - - 0 1)
Erlin, Konrad (AKA Erlinger, Konrad)
Source?, 0000
#2
6 + 4
SOLUTION
- SOUND
- Sets
- 1...Bxc3
- 2.Sc5#
- 1...Bf1
- 2.Qf3#
- 1...Bf3
- 2.Qxf3#
- 1...Bh3
- 2.Qf3#
- 1...Bxe4
- 2.Qf1#
- 1...Sxc4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sd7
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...Bxc3
- Tries
- 1.Kc1?
- threat
- 2.Se5#
- 1...Bb2+
- 2.Scxb2#
- 1...Bxc3
- 2.Sc5#
- 1...Bxe4
- 2.Qf1#
- 1...Sxc4
- 2.Qd5#
- 1...Sd7
- 2.Qd5#
- 1...Sxa4!
- threat
- 1.Scb2+?
- 1...Kd2
- 2.Qf2#
- 2.Qf4#
- 2.Qg5#
- 1...Bxb2!
- 1...Kd2
- 1.Re1+?
- 1...Be4
- 2.Qxe4#
- 2.Qf1#
- 1...Kxc4!
- 1...Be4
- 1.Rf4+?
- 1...Be4
- 2.Qxe4#
- 1...Ke2!
- 1...Be4
- 1.Rg4+?
- 1...Be4
- 2.Qxe4#
- 2.Qf1#
- 1...Ke2!
- 1...Be4
- 1.Rh4+?
- 1...Be4
- 2.Qxe4#
- 2.Qf1#
- 1...Ke2!
- 1...Be4
- 1.Re5+?
- 1...Be4
- 2.Qxe4#
- 2.Qf1#
- 1...Kxc4!
- 1...Be4
- 1.Re6+?
- 1...Be4
- 2.Qxe4#
- 2.Qf1#
- 1...Kxc4!
- 1...Be4
- 1.Re7+?
- 1...Be4
- 2.Qxe4#
- 2.Qf1#
- 1...Kxc4!
- 1...Be4
- 1.Re8+?
- 1...Be4
- 2.Qxe4#
- 2.Qf1#
- 1...Kxc4!
- 1...Be4
- 1.Qg4?
- threat
- 2.Re3#
- 2.Rd4#
- 2.Qe2#
- 1...Bxc3
- 2.Sc5#
- 2.Re3#
- 2.Qe2#
- 1...Sxa4
- 2.Re3#
- 1...Sxc4
- 2.Qe2#
- 1...Bf1
- 2.Re3#
- 2.Rd4#
- 2.Qf3#
- 1...Bf3
- 2.Re3#
- 2.Qxf3#
- 1...Sd5
- 2.Rd4#
- 2.Qe2#
- 1...Bxe4!
- threat
- 1.Qe6?
- threat
- 2.Re3#
- 2.Rd4#
- 1...Bxc3
- 2.Sc5#
- 1...Sxa4
- 2.Re3#
- 1...Sxc4
- 2.Rd4#
- 2.Qd5#
- 1...Sd5
- 2.Rd4#
- 2.Qxd5#
- 1...Bxe4!
- threat
- 1.Qf2?
- threat
- 2.Rd4#
- 2.Qe3#
- 2.Qd4#
- 2.Qc2#
- 2.Qe2#
- 1...Bxc3
- 2.Sc5#
- 2.Qe3#
- 2.Qc2#
- 2.Qe2#
- 1...Bxe4
- 2.Se5#
- 2.Qf1#
- 1...Sxa4
- 2.Qe3#
- 2.Qd4#
- 2.Qc2#
- 1...Sxc4
- 2.Rd4#
- 2.Qd4#
- 2.Qc2#
- 2.Qe2#
- 1...Bf1
- 2.Rd4#
- 2.Qe3#
- 2.Qd4#
- 2.Qc2#
- 2.Qf3#
- 1...Bf3
- 2.Rd4#
- 2.Qe3#
- 2.Qd4#
- 2.Qc2#
- 2.Qxf3#
- 1...Sd5
- 2.Rd4#
- 2.Qd4#
- 2.Qc2#
- 2.Qe2#
- 1...Kxe4!
- threat
- 1.Qf4?
- threat
- 2.Se5#
- 2.Re3#
- 2.Qe3#
- 1...Bxc3
- 2.Sc5#
- 2.Re3#
- 2.Qe3#
- 1...Bxe4
- 2.Qf1#
- 1...Sxa4
- 2.Re3#
- 2.Qe3#
- 1...Sd5
- 2.Se5#
- 1...Sd7
- 2.Re3#
- 2.Qe3#
- 1...Sxc4!
- threat
- 1.Qe5?
- threat
- 2.Sc5#
- 2.Rd4#
- 2.Qd4#
- 1...Bxc3
- 2.Sc5#
- 1...Sxa4
- 2.Qd4#
- 1...Sxc4
- 2.Rd4#
- 2.Qd4#
- 2.Qd5#
- 1...Sd7
- 2.Rd4#
- 2.Qd4#
- 2.Qd5#
- 1...Bxe4!
- threat
- 1.Qf6?
- threat
- 2.Sc5#
- 2.Qd4#
- 1...Bxc3
- 2.Sc5#
- 1...Bxe4
- 2.Qf1#
- 1...Sxa4
- 2.Qd4#
- 1...Sxc4
- 2.Qd4#
- 1...Sd7
- 2.Qd4#
- 1...Kxe4!
- threat
- 1.Kc1?
- Keys
- 1.Qf7!
- threat
- 2.Re3#
- 1...Kxe4
- 2.Sc5#
- 1...Bxc3
- 2.Sc5#
- 1...Bxe4
- 2.Qf1#
- 1...Sxc4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- threat
- 1.Qf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- B(a);SBLOCK,XP(B)::S(C)
- B(b);N_GUARD::QAR2(F)
- B(b);N_GUARD::QAR2(F),XB(b)
- B(b);N_GUARD,P_SPINB(b),SBLOCK,XR(E)::QAB(F)
- S(d);N_GUARD,XS(D)::QAR2(F)
- S(d);N_GUARD::QAR2(F),XS(d)
- S(d);N_GUARD::QAR2(F)
- Tries
- Try
- K(A);P-FLIGHT
- Threat
- S(D)
- Vars
- B(a);CHECK,N_GUARD::S(D),XB(a)
- B(a);SBLOCK,XP(B)::S(C)
- B(b);N_GUARD,P_SPINB(b),SBLOCK,XR(E)::QAB(F)
- S(d);N_GUARD,XS(D)::QAR2(F)
- S(d);N_GUARD::QAR2(F)
- Refutation
- S(d);XS(C)
- Try
- S(D);CHECK
- Refutation
- B(a);XS(D)
- Try
- R(E);CHECK
- Refutation
- K(c);S_FLIGHT,XS(D)
- Try
- R(E);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAB1(F),XB(b)
- Refutation
- K(c);S_FLIGHT
- Try
- R(E);CHECK
- Refutation
- K(c);S_FLIGHT
- Try
- R(E);CHECK
- Refutation
- K(c);S_FLIGHT
- Try
- R(E);CHECK
- Refutation
- K(c);S_FLIGHT,XS(D)
- Try
- R(E);CHECK
- Refutation
- K(c);S_FLIGHT,XS(D)
- Try
- R(E);CHECK
- Refutation
- K(c);S_FLIGHT,XS(D)
- Try
- R(E);CHECK
- Refutation
- K(c);S_FLIGHT,XS(D)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- S(d);XS(C)::R1(E)
- S(d);XS(D)::QAB1(F)
- Refutation
- B(b);XR(E)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- B(a);SBLOCK,XP(B)::S(C)
- S(d);XS(C)::R1(E)
- Refutation
- B(b);XR(E)
- Try
- Q(F);
- Threat
- DUALS(5)
- Refutation
- K(c);S_FLIGHT,XR(E)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- B(b);N_GUARD,SBLOCK,XR(E)::QAB(F)
- S(d);::S(D)
- Refutation
- S(d);XS(D)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- B(a);XP(B)::S(C)
- S(d);XS(C)::QAR1(F)
- Refutation
- B(b);XR(E)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- B(a);XP(B)::S(C)
- B(b);N_GUARD,SBLOCK,XR(E)::QAB(F)
- S(d);XS(C)::QAR1(F)
- S(d);XS(D)::QAR1(F)
- S(d);::QAR1(F)
- Refutation
- K(c);S_FLIGHT,XR(E)
- Try
- Actual
- Q(F);
- Threat
- R1(E)
- Vars
- K(c);S_FLIGHT,XR(E)::S(C)
- B(a);SBLOCK,XP(B)::S(C)
- B(b);N_GUARD,SBLOCK,XR(E)::QAB(F)
- S(d);N_GUARD,XS(D)::QAR2(F)
- S(d);N_GUARD::QAR2(F),XS(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).