MESON Chess Problem Database
Problem Display
PID: 169296 (3N1K2/3B4/kB6/qR6/1P6/1n6/8/Q7 w - - 0 1)
Tominic, Ivo
3rd Prize, SuperProblem 186. TT, 2017
#2
7 + 3
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Sc1
- 2.Qxa5#
- 1...Sd2
- 2.Qxa5#
- 1...Sd4
- 2.Qxa5#
- 1...Sc5
- 2.Qxa5#
- 1...Sc1
- Tries
- 1.Bg1?
- 1...Sxa1
- 2.Rxa5#
- 1...Sd4
- 2.Qxa5#
- 1...Sc5
- 2.Qxa5#
- 1...Qa2
- 2.Qf6#
- 1...Qa3
- 2.Qf6#
- 1...Qa4
- 2.Qf6#
- 1...Sc1
- 2.Rxa5#
- 2.Qxa5#
- 1...Sd2
- 2.Rxa5#
- 2.Qxa5#
- 1...Qxa1!
- 1...Sxa1
- 1.Bf2?
- 1...Sxa1
- 2.Rxa5#
- 1...Sd4
- 2.Qxa5#
- 1...Sc5
- 2.Qxa5#
- 1...Qa2
- 2.Qf6#
- 1...Qa3
- 2.Qf6#
- 1...Qa4
- 2.Qf6#
- 1...Sc1
- 2.Rxa5#
- 2.Qxa5#
- 1...Sd2
- 2.Rxa5#
- 2.Qxa5#
- 1...Qxa1!
- 1...Sxa1
- 1.Be3?
- 1...Sxa1
- 2.Rxa5#
- 1...Sd4
- 2.Qxa5#
- 1...Sc5
- 2.Qxa5#
- 1...Qa2
- 2.Qf6#
- 1...Qa3
- 2.Qf6#
- 1...Qa4
- 2.Qf6#
- 1...Sc1
- 2.Rxa5#
- 2.Qxa5#
- 1...Sd2
- 2.Rxa5#
- 2.Qxa5#
- 1...Qxa1!
- 1...Sxa1
- 1.Bc5?
- 1...Sxa1
- 2.Rxa5#
- 1...Sxc5
- 2.Qxa5#
- 1...Qa2
- 2.Qf6#
- 1...Qa3
- 2.Qf6#
- 1...Qa4
- 2.Qf6#
- 1...Sc1
- 2.Rxa5#
- 2.Qxa5#
- 1...Sd2
- 2.Rxa5#
- 2.Qxa5#
- 1...Sd4
- 2.Rxa5#
- 2.Qxa5#
- 1...Qxa1!
- 1...Sxa1
- 1.Rxa5+?
- 1...Sxa5
- 2.Qxa5#
- 1...Kxb6!
- 1...Sxa5
- 1.Qf1?
- threat
- 2.Bc8#
- 1...Qxb4+
- 2.Rxb4#
- 1...Qxb6
- 2.Ra5#
- 1...Qxb5
- 2.Qxb5#
- 1...Sc5!
- threat
- 1.Qa4?
- threat
- 2.Bc8#
- 1...Sc5
- 2.Qxa5#
- 1...Qxa4!
- threat
- 1.Bg1?
- Keys
- 1.Qf6!
- 1...Qxb4+
- 2.Bc5#
- 1...Qxb6
- 2.Qxb6#
- 1...Qxb5
- 2.Bc8#
- 1...Qa1
- 2.Bd4#
- 1...Qa2
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Bc5#
- 1...Qa3
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Bc5#
- 1...Qa4
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Bc5#
- 1...Sa1
- 2.Rxa5#
- 1...Sc1
- 2.Rxa5#
- 1...Sd2
- 2.Rxa5#
- 1...Sd4
- 2.Rxa5#
- 1...Sc5
- 2.Rxa5#
- 1...Qxb4+
- 1.Qf6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAR1(A),XQ(b)
- Tries
- Try
- B(D);
- Vars
- S(a);N_GUARD,N_SPINQ(b),XQ(A)::R1(C),XQ(b)
- S(a);N_GUARD::QAR1(A),XQ(b)
- Q(b);N_GUARD::QAR(A)
- Q(b);N_GUARD,P_PINP(B)::QAR(A)
- Refutation
- Q(b);N_SPINQ(b),XQ(A)
- Try
- B(D);
- Vars
- S(a);N_GUARD,N_SPINQ(b),XQ(A)::R1(C),XQ(b)
- S(a);N_GUARD::QAR1(A),XQ(b)
- Q(b);N_GUARD::QAR(A)
- Q(b);N_GUARD,P_PINP(B)::QAR(A)
- Refutation
- Q(b);N_SPINQ(b),XQ(A)
- Try
- B(D);
- Vars
- S(a);N_GUARD,N_SPINQ(b),XQ(A)::R1(C),XQ(b)
- S(a);N_GUARD::QAR1(A),XQ(b)
- Q(b);N_GUARD::QAR(A)
- Q(b);N_GUARD,P_PINP(B)::QAR(A)
- Refutation
- Q(b);N_SPINQ(b),XQ(A)
- Try
- B(D);
- Vars
- S(a);N_GUARD,N_SPINQ(b),XQ(A)::R1(C),XQ(b)
- S(a);N_GUARD,XB(D)::QAR1(A),XQ(b)
- Q(b);N_GUARD::QAR(A)
- Refutation
- Q(b);N_SPINQ(b),XQ(A)
- Try
- R(C);CHECK,XQ(b)
- Vars
- S(a);OGATE,P_SPINS(a),XR(C)::QAR1(A),XS(a)
- Refutation
- K(c);P-FLIGHT,XB(D)
- Try
- Q(A);N_PINQ(b)
- Threat
- B(E)
- Vars
- Q(b);CHECK,OGATE,XP(B)::QAB(A)+R(C),XQ(b)
- Q(b);SBLOCK,XB(D)::QAB(A)+R(C),DCHECK
- Q(b);OGATE,P_SPINQ(b),XR(C)::QAB1(A),XQ(b)
- Refutation
- S(a);
- Try
- Q(A);
- Threat
- B(E)
- Vars
- S(a);N_GUARD::QAR1(A),XQ(b)
- Refutation
- Q(b);N_SPINQ(b),XQ(A)
- Try
- Actual
- Q(A);N_PINQ(b)
- Vars
- Q(b);CHECK,N_GUARD,XP(B)::QAR(A)+B(D)
- Q(b);OGATE,P_SPINQ(b),XB(D)::QAR1(A),XQ(b)
- Q(b);SBLOCK,XR(C)::B(E)
- Q(b);N_GUARD::QAR(A)+B(D)
- S(a);N_GUARD::R1(C),XQ(b)
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).