MESON Chess Problem Database
Problem Display
PID: 187661 (8/1p6/1n4R1/kB1p4/p2K4/Q7/8/8 w - - 0 1)
Richter, Emil
Cas, 1909
#2
4 + 5
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Sc4
- 2.Qxa4#
- 1...Sd7
- 2.Qxa4#
- 1...Sa8
- 2.Qxa4#
- 1...Sc8
- 2.Qxa4#
- 1...Sc4
- Tries
- 1.Kc5?
- threat
- 2.Qb4#
- 2.Qc3#
- 1...d4
- 2.Qb4#
- 1...Sd7+!
- threat
- 1.Bf1?
- threat
- 2.Qc5#
- 2.Qc3#
- 1...Sd7
- 2.Qc3#
- 1...Sa8
- 2.Qc3#
- 1...Sc8
- 2.Qc3#
- 1...Sc4!
- threat
- 1.Be2?
- threat
- 2.Qc5#
- 2.Qc3#
- 1...Sd7
- 2.Qc3#
- 1...Sa8
- 2.Qc3#
- 1...Sc8
- 2.Qc3#
- 1...Sc4!
- threat
- 1.Bd3?
- threat
- 2.Qc5#
- 2.Qc3#
- 1...Sd7
- 2.Qc3#
- 1...Sa8
- 2.Qc3#
- 1...Sc8
- 2.Qc3#
- 1...Sc4!
- threat
- 1.Bd7?
- 1...Ka6
- 2.Qxa4#
- 1...Sc4
- 2.Qc3#
- 2.Qxa4#
- 1...Sa8
- 2.Qc3#
- 2.Qxa4#
- 1...Sc8
- 2.Qc3#
- 2.Qxa4#
- 1...Sxd7!
- 1...Ka6
- 1.Be8?
- 1...Ka6
- 2.Qxa4#
- 1...Sc4
- 2.Qc3#
- 2.Qxa4#
- 1...Sa8
- 2.Qc3#
- 2.Qxa4#
- 1...Sc8
- 2.Qc3#
- 2.Qxa4#
- 1...Sd7!
- 1...Ka6
- 1.Rd6?
- 1...Sc4
- 2.Qxa4#
- 1...Sd7
- 2.Qxa4#
- 1...Sa8
- 2.Qxa4#
- 1...Sc8
- 2.Qxa4#
- 1...Kxb5!
- 1...Sc4
- 1.Re6?
- 1...Sc4
- 2.Qxa4#
- 1...Sd7
- 2.Qxa4#
- 1...Sa8
- 2.Qxa4#
- 1...Sc8
- 2.Qxa4#
- 1...Kxb5!
- 1...Sc4
- 1.Rf6?
- 1...Sc4
- 2.Qxa4#
- 1...Sd7
- 2.Qxa4#
- 1...Sa8
- 2.Qxa4#
- 1...Sc8
- 2.Qxa4#
- 1...Kxb5!
- 1...Sc4
- 1.Rh6?
- 1...Sc4
- 2.Qxa4#
- 1...Sd7
- 2.Qxa4#
- 1...Sa8
- 2.Qxa4#
- 1...Sc8
- 2.Qxa4#
- 1...Kxb5!
- 1...Sc4
- 1.Kc5?
- Keys
- 1.Ba6!
- 1...Kxa6
- 2.Qxa4#
- 1...bxa6
- 2.Qc5#
- 1...Sc4
- 2.Qc3#
- 1...Sd7
- 2.Qc3#
- 1...Sa8
- 2.Qc3#
- 1...Sc8
- 2.Qc3#
- 1...Kxa6
- 1.Ba6!
This is a version of 187617
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(d);N_GUARD::QAR1(A),XP(a)
- Tries
- Try
- K(B);S_FLIGHT
- Threat
- DUALS(2)
- Vars
- P(c);::QAB1(A)
- Refutation
- S(d);CHECK
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- S(d);::QAB(A)
- Refutation
- S(d);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- S(d);::QAB(A)
- Refutation
- S(d);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- S(d);::QAB(A)
- Refutation
- S(d);
- Try
- B(C);
- Vars
- K(b);P-FLIGHT,P_SPINS(d)::QAR2(A),XP(a)
- Refutation
- S(d);XB(C)
- Try
- B(C);
- Vars
- K(b);P-FLIGHT,P_SPINS(d)::QAR2(A),XP(a)
- Refutation
- S(d);
- Try
- R(D);
- Vars
- S(d);N_GUARD::QAR1(A),XP(a)
- Refutation
- K(b);N_SPINP(a),P-FLIGHT,XB(C)
- Try
- R(D);
- Vars
- S(d);N_GUARD::QAR1(A),XP(a)
- Refutation
- K(b);N_SPINP(a),P-FLIGHT,XB(C)
- Try
- R(D);
- Vars
- S(d);N_GUARD::QAR1(A),XP(a)
- Refutation
- K(b);N_SPINP(a),P-FLIGHT,XB(C)
- Try
- R(D);
- Vars
- S(d);N_GUARD::QAR1(A),XP(a)
- Refutation
- K(b);N_SPINP(a),P-FLIGHT,XB(C)
- Try
- Actual
- B(C);
- Vars
- K(b);P-FLIGHT,P_SPINS(d),XB(C)::QAR2(A),XP(a)
- P(e);SBLOCK,XB(C)::QAR2(A)
- S(d);::QAB(A)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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