MESON Chess Problem Database
Problem Display
PID: 94868 (k7/P1B5/R1q5/3N4/4Q3/5K2/8/8 w - - 0 1)
Pypa, Volodimir Iosifovich
Magadanskaya Pravda, 1945
#2
6 + 2
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kb7
- 2.a8Q#
- 1...Qa4
- 2.Sb6#
- 1...Qb5
- 2.Sb6#
- 1...Qxd5
- 2.Qxd5#
- 1...Qb7
- 2.Sb6#
- 1...Qd7
- 2.Sb6#
- 1...Qe8
- 2.Sb6#
- 1...Qc1
- 2.Sc3#
- 2.Sb6#
- 1...Qc2
- 2.Sb6#
- 1...Qc3+
- 2.Sxc3#
- 1...Qc4
- 2.Sb6#
- 1...Qc5
- 2.Sb6#
- 1...Qb6
- 2.Sxb6#
- 1...Qd6
- 2.Sb6#
- 1...Qe6
- 2.Sb6#
- 1...Qf6+
- 2.Sxf6#
- 1...Qg6
- 2.Sb6#
- 1...Qh6
- 2.Sb6#
- 2.Sf6#
- 1...Qxc7
- 2.Sb6#
- 2.Sxc7#
- 1...Kb7
- Tries
- 1.Bh2?
- 1...Qc3+
- 2.Sxc3#
- 1...Qf6+
- 2.Sxf6#
- 1...Kb7
- 2.a8Q#
- 1...Qxd5
- 2.Qxd5#
- 1...Qa4
- 2.Sb6#
- 2.Sc7#
- 1...Qb5
- 2.Sb6#
- 2.Sc7#
- 1...Qb7
- 2.Sb6#
- 2.Sc7#
- 1...Qd7
- 2.Sb6#
- 2.Sc7#
- 1...Qe8
- 2.Sb6#
- 2.Sc7#
- 1...Qc1
- 2.Sc3#
- 2.Sb6#
- 2.Sc7#
- 1...Qc2
- 2.Sb6#
- 2.Sc7#
- 1...Qc4
- 2.Sb6#
- 2.Sc7#
- 1...Qc5
- 2.Sb6#
- 2.Sc7#
- 1...Qb6
- 2.Sxb6#
- 2.Sc7#
- 1...Qd6
- 2.Sb6#
- 2.Sc7#
- 1...Qe6
- 2.Sb6#
- 2.Sc7#
- 1...Qg6
- 2.Sb6#
- 2.Sc7#
- 1...Qh6
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qc7
- 2.Sb6#
- 2.Sxc7#
- 1...Qc8
- 2.Sb6#
- 2.Sc7#
- 1...Qxa6!
- 1...Qc3+
- 1.Bg3?
- 1...Qc3+
- 2.Sxc3#
- 1...Qf6+
- 2.Sxf6#
- 1...Kb7
- 2.a8Q#
- 1...Qxd5
- 2.Qxd5#
- 1...Qa4
- 2.Sb6#
- 2.Sc7#
- 1...Qb5
- 2.Sb6#
- 2.Sc7#
- 1...Qb7
- 2.Sb6#
- 2.Sc7#
- 1...Qd7
- 2.Sb6#
- 2.Sc7#
- 1...Qe8
- 2.Sb6#
- 2.Sc7#
- 1...Qc1
- 2.Sc3#
- 2.Sb6#
- 2.Sc7#
- 1...Qc2
- 2.Sb6#
- 2.Sc7#
- 1...Qc4
- 2.Sb6#
- 2.Sc7#
- 1...Qc5
- 2.Sb6#
- 2.Sc7#
- 1...Qb6
- 2.Sxb6#
- 2.Sc7#
- 1...Qd6
- 2.Sb6#
- 2.Sc7#
- 1...Qe6
- 2.Sb6#
- 2.Sc7#
- 1...Qg6
- 2.Sb6#
- 2.Sc7#
- 1...Qh6
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qc7
- 2.Sb6#
- 2.Sxc7#
- 1...Qc8
- 2.Sb6#
- 2.Sc7#
- 1...Qxa6!
- 1...Qc3+
- 1.Bf4?
- 1...Qc3+
- 2.Sxc3#
- 1...Kb7
- 2.a8Q#
- 1...Qxd5
- 2.Qxd5#
- 1...Qa4
- 2.Sb6#
- 2.Sc7#
- 1...Qb5
- 2.Sb6#
- 2.Sc7#
- 1...Qb7
- 2.Sb6#
- 2.Sc7#
- 1...Qd7
- 2.Sb6#
- 2.Sc7#
- 1...Qe8
- 2.Sb6#
- 2.Sc7#
- 1...Qc1
- 2.Sc3#
- 2.Sb6#
- 2.Sc7#
- 1...Qc2
- 2.Sb6#
- 2.Sc7#
- 1...Qc4
- 2.Sb6#
- 2.Sc7#
- 1...Qc5
- 2.Sb6#
- 2.Sc7#
- 1...Qb6
- 2.Sxb6#
- 2.Sc7#
- 1...Qd6
- 2.Sb6#
- 2.Sc7#
- 1...Qe6
- 2.Sb6#
- 2.Sc7#
- 1...Qf6
- 2.Sb6#
- 2.Sxf6#
- 2.Sc7#
- 1...Qg6
- 2.Sb6#
- 2.Sc7#
- 1...Qh6
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qc7
- 2.Sb6#
- 2.Sxc7#
- 1...Qc8
- 2.Sb6#
- 2.Sc7#
- 1...Qxa6!
- 1...Qc3+
- 1.Ba5?
- 1...Qc3+
- 2.Sxc3#
- 1...Qf6+
- 2.Sxf6#
- 1...Kb7
- 2.a8Q#
- 1...Qxd5
- 2.Qxd5#
- 1...Qa4
- 2.Sb6#
- 2.Sc7#
- 1...Qb5
- 2.Sb6#
- 2.Sc7#
- 1...Qb7
- 2.Sb6#
- 2.Sc7#
- 1...Qd7
- 2.Sb6#
- 2.Sc7#
- 1...Qe8
- 2.Sb6#
- 2.Sc7#
- 1...Qc1
- 2.Sc3#
- 2.Sb6#
- 2.Sc7#
- 1...Qc2
- 2.Sb6#
- 2.Sc7#
- 1...Qc4
- 2.Sb6#
- 2.Sc7#
- 1...Qc5
- 2.Sb6#
- 2.Sc7#
- 1...Qb6
- 2.Sxb6#
- 2.Sc7#
- 1...Qd6
- 2.Sb6#
- 2.Sc7#
- 1...Qe6
- 2.Sb6#
- 2.Sc7#
- 1...Qg6
- 2.Sb6#
- 2.Sc7#
- 1...Qh6
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qc7
- 2.Sb6#
- 2.Sxc7#
- 1...Qc8
- 2.Sb6#
- 2.Sc7#
- 1...Qxa6!
- 1...Qc3+
- 1.Be5?
- 1...Qc3+
- 2.Sxc3#
- 1...Qf6+
- 2.Sxf6#
- 1...Kb7
- 2.a8Q#
- 1...Qxd5
- 2.Qxd5#
- 1...Qa4
- 2.Sb6#
- 2.Sc7#
- 1...Qb5
- 2.Sb6#
- 2.Sc7#
- 1...Qb7
- 2.Sb6#
- 2.Sc7#
- 1...Qd7
- 2.Sb6#
- 2.Sc7#
- 1...Qe8
- 2.Sb6#
- 2.Sc7#
- 1...Qc1
- 2.Sc3#
- 2.Sb6#
- 2.Sc7#
- 1...Qc2
- 2.Sb6#
- 2.Sc7#
- 1...Qc4
- 2.Sb6#
- 2.Sc7#
- 1...Qc5
- 2.Sb6#
- 2.Sc7#
- 1...Qb6
- 2.Sxb6#
- 2.Sc7#
- 1...Qd6
- 2.Sb6#
- 2.Sc7#
- 1...Qe6
- 2.Sb6#
- 2.Sc7#
- 1...Qg6
- 2.Sb6#
- 2.Sc7#
- 1...Qh6
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qc7
- 2.Sb6#
- 2.Sxc7#
- 1...Qc8
- 2.Sb6#
- 2.Sc7#
- 1...Qxa6!
- 1...Qc3+
- 1.Bd6?
- 1...Qc3+
- 2.Sxc3#
- 1...Kb7
- 2.a8Q#
- 1...Qxd5
- 2.Qxd5#
- 1...Qxd6
- 2.Sb6#
- 2.Sc7#
- 1...Qa4
- 2.Sb6#
- 2.Sc7#
- 1...Qb5
- 2.Sb6#
- 2.Sc7#
- 1...Qb7
- 2.Sb6#
- 2.Sc7#
- 1...Qd7
- 2.Sb6#
- 2.Sc7#
- 1...Qe8
- 2.Sb6#
- 2.Sc7#
- 1...Qc1
- 2.Sc3#
- 2.Sb6#
- 2.Sc7#
- 1...Qc2
- 2.Sb6#
- 2.Sc7#
- 1...Qc4
- 2.Sb6#
- 2.Sc7#
- 1...Qc5
- 2.Sb6#
- 2.Sc7#
- 1...Qb6
- 2.Sxb6#
- 2.Sc7#
- 1...Qc7
- 2.Sb6#
- 2.Sxc7#
- 1...Qc8
- 2.Sb6#
- 2.Sc7#
- 1...Qxa6!
- 1...Qc3+
- 1.Bb8?
- 1...Qc3+
- 2.Sxc3#
- 1...Qf6+
- 2.Sxf6#
- 1...Qxd5
- 2.Qxd5#
- 1...Qxa6
- 2.Sb6#
- 2.Sc7#
- 1...Qa4
- 2.Sb6#
- 2.Sc7#
- 1...Qb5
- 2.Sb6#
- 2.Sc7#
- 1...Qb7
- 2.Sb6#
- 2.Sc7#
- 1...Qd7
- 2.Sb6#
- 2.Sc7#
- 1...Qe8
- 2.Sb6#
- 2.Sc7#
- 1...Qc1
- 2.Sc3#
- 2.Sb6#
- 2.Sc7#
- 1...Qc2
- 2.Sb6#
- 2.Sc7#
- 1...Qc4
- 2.Sb6#
- 2.Sc7#
- 1...Qc5
- 2.Sb6#
- 2.Sc7#
- 1...Qb6
- 2.Sxb6#
- 2.Sc7#
- 1...Qd6
- 2.Sb6#
- 2.Sc7#
- 1...Qe6
- 2.Sb6#
- 2.Sc7#
- 1...Qg6
- 2.Sb6#
- 2.Sc7#
- 1...Qh6
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qc7
- 2.Sb6#
- 2.Sxc7#
- 1...Qc8
- 2.Sb6#
- 2.Sc7#
- 1...Kb7!
- 1...Qc3+
- 1.Bd8?
- 1...Qc3+
- 2.Sxc3#
- 1...Qf6+
- 2.Sxf6#
- 1...Kb7
- 2.a8Q#
- 1...Qxd5
- 2.Qxd5#
- 1...Qa4
- 2.Sb6#
- 2.Sc7#
- 1...Qb5
- 2.Sb6#
- 2.Sc7#
- 1...Qb7
- 2.Sb6#
- 2.Sc7#
- 1...Qd7
- 2.Sb6#
- 2.Sc7#
- 1...Qe8
- 2.Sb6#
- 2.Sc7#
- 1...Qc1
- 2.Sc3#
- 2.Sb6#
- 2.Sc7#
- 1...Qc2
- 2.Sb6#
- 2.Sc7#
- 1...Qc4
- 2.Sb6#
- 2.Sc7#
- 1...Qc5
- 2.Sb6#
- 2.Sc7#
- 1...Qb6
- 2.Sxb6#
- 2.Sc7#
- 1...Qd6
- 2.Sb6#
- 2.Sc7#
- 1...Qe6
- 2.Sb6#
- 2.Sc7#
- 1...Qg6
- 2.Sb6#
- 2.Sc7#
- 1...Qh6
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qc7
- 2.Sb6#
- 2.Sxc7#
- 1...Qc8
- 2.Sb6#
- 2.Sc7#
- 1...Qxa6!
- 1...Qc3+
- 1.Ra5?
- 1...Qc3+
- 2.Sxc3#
- 1...Qf6+
- 2.Sxf6#
- 1...Kb7
- 2.a8Q#
- 1...Qxd5
- 2.Qxd5#
- 1...Qxc7
- 2.Sb6#
- 2.Sxc7#
- 1...Qa4
- 2.Sb6#
- 1...Qb5
- 2.Sb6#
- 1...Qb7
- 2.Sb6#
- 1...Qd7
- 2.Sb6#
- 1...Qe8
- 2.Sb6#
- 1...Qc1
- 2.Sc3#
- 2.Sb6#
- 1...Qc2
- 2.Sb6#
- 1...Qc4
- 2.Sb6#
- 1...Qc5
- 2.Sb6#
- 1...Qb6
- 2.Sxb6#
- 1...Qd6
- 2.Sb6#
- 1...Qe6
- 2.Sb6#
- 1...Qg6
- 2.Sb6#
- 1...Qh6
- 2.Sb6#
- 2.Sf6#
- 1...Qa6!
- 1...Qc3+
- 1.Qe8+?
- 1...Kb7
- 2.a8Q#
- 1...Qxe8!
- 1...Kb7
- 1.Bh2?
- Keys
- 1.Bb6!
- 1...Qc3+
- 2.Sxc3#
- 1...Qf6+
- 2.Sxf6#
- 1...Kb7
- 2.a8Q#
- 1...Qxd5
- 2.Qxd5#
- 1...Qxb6
- 2.Sxb6#
- 2.Sc7#
- 1...Qa4
- 2.Sc7#
- 1...Qb5
- 2.Sc7#
- 1...Qb7
- 2.Sc7#
- 1...Qd7
- 2.Sc7#
- 1...Qe8
- 2.Sc7#
- 1...Qc1
- 2.Sc3#
- 2.Sc7#
- 1...Qc2
- 2.Sc7#
- 1...Qc4
- 2.Sc7#
- 1...Qc5
- 2.Sc7#
- 1...Qd6
- 2.Sc7#
- 1...Qe6
- 2.Sc7#
- 1...Qg6
- 2.Sc7#
- 1...Qh6
- 2.Sf6#
- 2.Sc7#
- 1...Qc7
- 2.Sxc7#
- 1...Qc8
- 2.Sc7#
- 1...Qc3+
- 1.Bb6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 11
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- K(b);OGATE,S_FLIGHT::P=Q
- Q(a);::QAB(B)+S(C),DCHECK
- Q(a);OGATE,P_PINQ(B),P_SPINQ(a),XS(C)::QAB(B),XQ(a)
- Q(a);::S(C)
- Q(a);CHECK::QAB(B)+S(C),XQ(a)
- Q(a);::QAB(B)+S(C),DCHECK,XQ(a)
- Tries
- Try
- B(F);
- Vars
- Q(a);CHECK::QAB(B)+S(C),XQ(a)
- K(b);OGATE,S_FLIGHT::P=Q
- Q(a);OGATE,P_PINQ(B),P_SPINQ(a),XS(C)::QAB(B),XQ(a)
- Refutation
- Q(a);XR(D)
- Try
- B(F);
- Vars
- Q(a);CHECK::QAB(B)+S(C),XQ(a)
- K(b);OGATE,S_FLIGHT::P=Q
- Q(a);OGATE,P_PINQ(B),P_SPINQ(a),XS(C)::QAB(B),XQ(a)
- Refutation
- Q(a);XR(D)
- Try
- B(F);
- Vars
- Q(a);CHECK::QAB(B)+S(C),XQ(a)
- K(b);OGATE,S_FLIGHT::P=Q
- Q(a);OGATE,P_PINQ(B),P_SPINQ(a),XS(C)::QAB(B),XQ(a)
- Refutation
- Q(a);XR(D)
- Try
- B(F);
- Vars
- Q(a);CHECK::QAB(B)+S(C),XQ(a)
- K(b);OGATE,S_FLIGHT::P=Q
- Q(a);OGATE,P_PINQ(B),P_SPINQ(a),XS(C)::QAB(B),XQ(a)
- Refutation
- Q(a);XR(D)
- Try
- B(F);
- Vars
- Q(a);CHECK::QAB(B)+S(C),XQ(a)
- K(b);OGATE,S_FLIGHT::P=Q
- Q(a);OGATE,P_PINQ(B),P_SPINQ(a),XS(C)::QAB(B),XQ(a)
- Refutation
- Q(a);XR(D)
- Try
- B(F);
- Vars
- Q(a);CHECK::QAB(B)+S(C),XQ(a)
- K(b);OGATE,S_FLIGHT::P=Q
- Q(a);OGATE,P_PINQ(B),P_SPINQ(a),XS(C)::QAB(B),XQ(a)
- Refutation
- Q(a);XR(D)
- Try
- B(F);
- Vars
- Q(a);CHECK::QAB(B)+S(C),XQ(a)
- Q(a);OGATE,P_PINQ(B),P_SPINQ(a),XS(C)::QAB(B),XQ(a)
- Refutation
- K(b);S_FLIGHT
- Try
- B(F);
- Vars
- Q(a);CHECK::QAB(B)+S(C),XQ(a)
- K(b);OGATE,S_FLIGHT::P=Q
- Q(a);OGATE,P_PINQ(B),P_SPINQ(a),XS(C)::QAB(B),XQ(a)
- Refutation
- Q(a);XR(D)
- Try
- R(D);
- Vars
- Q(a);CHECK::QAB(B)+S(C),XQ(a)
- K(b);OGATE,S_FLIGHT::P=Q
- Q(a);OGATE,P_PINQ(B),P_SPINQ(a),XS(C)::QAB(B),XQ(a)
- Q(a);::QAB(B)+S(C),DCHECK
- Q(a);::S(C)
- Q(a);::QAB(B)+S(C),DCHECK,XQ(a)
- Refutation
- Q(a);
- Try
- Q(B);CHECK,P_SPINS(C)
- Vars
- K(b);OGATE,S_FLIGHT::P=Q
- Refutation
- Q(a);N_PINS(C),XQ(B)
- Try
- Actual
- B(F);
- Vars
- Q(a);CHECK::QAB(B)+S(C),XQ(a)
- K(b);OGATE,S_FLIGHT::P=Q
- Q(a);OGATE,P_PINQ(B),P_SPINQ(a),XS(C)::QAB(B),XQ(a)
- Q(a);::QAB(B)+S(C),DCHECK
- Q(a);::S(C)
- Q(a);::QAB(B)+S(C),DCHECK,XQ(a)
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).