MESON Chess Problem Database
Problem Display
PID: 173102 (8/1p6/pP1p4/Q1prp3/2PpB3/N2K4/p7/kNB5 w - - 0 1)
Barulin, Mikhail Mikhailovich
64 Shakhmatnoe obozrenie, 1927
#2
8 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...axb1Q+
- 2.Sc2#
- 1...axb1S
- 2.Sc2#
- 1...axb1B+
- 2.Sc2#
- 1...axb1R
- 2.Sc2#
- 2.Sb5#
- 1...axb1Q+
- Tries
- 1.Kc2?
- threat
- 2.Bb2#
- 1...axb1Q+
- 2.Sxb1#
- 1...axb1B+
- 2.Sxb1#
- 1...axb1S
- 2.Sxb1#
- 1...axb1R
- 2.Sxb1#
- 2.Sb5#
- 1...d3+!
- threat
- 1.Ke2?
- 1...axb1Q
- 2.Sxb1#
- 2.Sc2#
- 1...axb1S
- 2.Sxb1#
- 2.Sc2#
- 1...axb1B
- 2.Sxb1#
- 2.Sc2#
- 1...axb1R
- 2.Sxb1#
- 2.Sc2#
- 2.Sb5#
- 1...d3+!
- 1...axb1Q
- 1.Bh1?
- 1...axb1Q+
- 2.Sc2#
- 1...axb1B+
- 2.Sc2#
- 1...axb1S
- 2.Sc2#
- 1...axb1R
- 2.Sc2#
- 2.Sb5#
- 1...e4+!
- 1...axb1Q+
- 1.Bg2?
- 1...axb1Q+
- 2.Sc2#
- 1...axb1B+
- 2.Sc2#
- 1...axb1S
- 2.Sc2#
- 1...axb1R
- 2.Sc2#
- 2.Sb5#
- 1...e4+!
- 1...axb1Q+
- 1.Bf3?
- 1...axb1Q+
- 2.Sc2#
- 1...axb1B+
- 2.Sc2#
- 1...axb1S
- 2.Sc2#
- 1...axb1R
- 2.Sc2#
- 2.Sb5#
- 1...e4+!
- 1...axb1Q+
- 1.Bxd5?
- 1...axb1Q+
- 2.Sc2#
- 1...axb1B+
- 2.Sc2#
- 1...axb1S
- 2.Sc2#
- 1...axb1R
- 2.Sc2#
- 2.Sb5#
- 1...e4+!
- 1...axb1Q+
- 1.Bf5?
- 1...axb1Q+
- 2.Sc2#
- 1...axb1B+
- 2.Sc2#
- 1...axb1S
- 2.Sc2#
- 1...axb1R
- 2.Sc2#
- 2.Sb5#
- 1...e4+!
- 1...axb1Q+
- 1.Bg6?
- 1...axb1Q+
- 2.Sc2#
- 1...axb1B+
- 2.Sc2#
- 1...axb1S
- 2.Sc2#
- 1...axb1R
- 2.Sc2#
- 2.Sb5#
- 1...e4+!
- 1...axb1Q+
- 1.Bh7?
- 1...axb1Q+
- 2.Sc2#
- 1...axb1B+
- 2.Sc2#
- 1...axb1S
- 2.Sc2#
- 1...axb1R
- 2.Sc2#
- 2.Sb5#
- 1...e4+!
- 1...axb1Q+
- 1.Qb4?
- threat
- 2.Sc2#
- 2.Bb2#
- 2.Qb2#
- 1...axb1Q+
- 2.Qxb1#
- 1...axb1B+
- 2.Qxb1#
- 1...axb1S
- 2.Qxb1#
- 2.Qb2#
- 1...axb1R
- 2.Qxb1#
- 1...cxb4!
- threat
- 1.Qa4?
- 1...axb1Q+
- 2.Sc2#
- 1...axb1B+
- 2.Sc2#
- 1...axb1S
- 2.Sc2#
- 1...axb1R
- 2.Sc2#
- 2.Sb5#
- 1...a5!
- 1...axb1Q+
- 1.Qb5?
- threat
- 2.Sc2#
- 2.Bb2#
- 2.Qb2#
- 1...axb1Q+
- 2.Qxb1#
- 1...axb1B+
- 2.Qxb1#
- 1...axb1S
- 2.Qxb1#
- 2.Qb2#
- 1...axb1R
- 2.Qxb1#
- 1...axb5!
- threat
- 1.Qxa6?
- 1...axb1Q+
- 2.Sc2#
- 1...axb1B+
- 2.Sc2#
- 1...axb1S
- 2.Sc2#
- 1...axb1R
- 2.Sc2#
- 1...bxa6!
- 1...axb1Q+
- 1.cxd5?
- 1...axb1Q+
- 2.Sc2#
- 1...axb1B+
- 2.Sc2#
- 1...axb1S
- 2.Sc2#
- 1...axb1R
- 2.Sc2#
- 2.Sc4#
- 2.Sb5#
- 1...c4+!
- 1...axb1Q+
- 1.Kc2?
- Keys
- 1.Kd2!
- 1...axb1S+
- 2.Sxb1#
- 1...axb1Q
- 2.Sxb1#
- 2.Sc2#
- 1...axb1B
- 2.Sxb1#
- 2.Sc2#
- 1...axb1R
- 2.Sxb1#
- 2.Sc2#
- 2.Sb5#
- 1...d3
- 2.Qc3#
- 1...axb1S+
- 1.Kd2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- P(b);CHECK,SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- P(b);SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- Tries
- Try
- K(D);S_FLIGHT
- Threat
- B(B)
- Vars
- P(b);CHECK,XS(A)::QAR(G)+S(C),XQ(b)
- P(b);CHECK,XS(A)::QAR(G)+S(C),XB(b)
- P(b);XS(A)::QAR(G)+S(C),XS(b)
- Refutation
- P(c);CHECK
- Try
- K(D);S_FLIGHT
- Refutation
- P(c);CHECK
- Try
- B(F);
- Vars
- P(b);CHECK,SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- P(b);SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- Refutation
- P(f);CHECK
- Try
- B(F);
- Vars
- P(b);CHECK,SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- P(b);SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- Refutation
- P(f);CHECK
- Try
- B(F);
- Vars
- P(b);CHECK,SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- P(b);SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- Refutation
- P(f);CHECK
- Try
- B(F);XR(e)
- Vars
- P(b);CHECK,SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- P(b);SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- Refutation
- P(f);CHECK
- Try
- B(F);
- Vars
- P(b);CHECK,SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- P(b);SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- Refutation
- P(f);CHECK
- Try
- B(F);
- Vars
- P(b);CHECK,SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- P(b);SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- Refutation
- P(f);CHECK
- Try
- B(F);
- Vars
- P(b);CHECK,SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- P(b);SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- Refutation
- P(f);CHECK
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- P(b);CHECK,OGATE,XS(A)::QAR1(G),XQ(b)
- P(b);CHECK,OGATE,XS(A)::QAR1(G),XB(b)
- P(b);OGATE,XS(A)::QAR1(G),XR(b)
- Refutation
- P(d);XQ(G)
- Try
- Q(G);
- Vars
- P(b);CHECK,SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- P(b);SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- Refutation
- P(g);
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- P(b);CHECK,OGATE,XS(A)::QAR1(G),XQ(b)
- P(b);CHECK,OGATE,XS(A)::QAR1(G),XB(b)
- P(b);OGATE,XS(A)::QAR1(G),XR(b)
- Refutation
- P(g);XQ(G)
- Try
- Q(G);XP(g)
- Vars
- P(b);CHECK,SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- P(b);SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- Refutation
- P(i);XQ(G)
- Try
- P(E);XR(e)
- Vars
- P(b);CHECK,SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- P(b);SBLOCK,XS(A)::QAR(G)+S(C),DCHECK
- Refutation
- P(d);CHECK
- Try
- Actual
- K(D);P-FLIGHT
- Vars
- P(b);CHECK,XS(A)::QAR(G)+S(C),XS(b)
- P(c);N_GUARD::QAB(G)
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).