MESON Chess Problem Database
Problem Display
PID: 213818 (8/3pB1K1/1p6/1P2kP1R/1N4p1/3Bp1P1/1b2P2N/4Q3 w - - 0 1)
Pitkanen, Jorma
Suomen Shakki, 2000
#2
11 + 6
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Sxg4#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Bf6#
- 1...Ba1
- Tries
- 1.Kg6?
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Sxg4#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Bf6#
- 1...Kd4!
- 1...Ba1
- 1.Kf7?
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Sxg4#
- 2.f6#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Bf6#
- 1...Kd4!
- 1...Ba1
- 1.Bc2?
- 1...d6
- 2.Bf6#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Sxg4#
- 1...d5
- 2.Sc6#
- 1...Kd4!
- 1...d6
- 1.Rh3?
- 1...gxh3
- 2.Sf3#
- 1...d6
- 2.Bf6#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Sxg4#
- 1...d5
- 2.Sc6#
- 1...Kd4!
- 1...gxh3
- 1.Rg5?
- 1...d6
- 2.Bf6#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Sxg4#
- 1...d5
- 2.Sc6#
- 1...Kd4!
- 1...d6
- 1.Rh6?
- 1...d6
- 2.Bf6#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Sxg4#
- 2.Bd6#
- 1...d5
- 2.Sc6#
- 1...Kd4!
- 1...d6
- 1.Rh7?
- 1...d6
- 2.Bf6#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Sxg4#
- 1...d5
- 2.Sc6#
- 1...Kd4!
- 1...d6
- 1.Rh8?
- 1...d6
- 2.Bf6#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Sxg4#
- 1...d5
- 2.Sc6#
- 1...Kd4!
- 1...d6
- 1.Qd2?
- threat
- 2.Qxe3#
- 2.Qxb2#
- 1...Kd4
- 2.Qxb2#
- 1...Ba1
- 2.Qxe3#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 2.Qxe3#
- 1...Bc3
- 2.Qxc3#
- 2.Qxe3#
- 1...Bd4
- 2.Sxg4#
- 1...d5
- 2.Sc6#
- 2.Qxe3#
- 1...exd2!
- threat
- 1.Qa1?
- threat
- 2.Qxb2#
- 1...Kd4
- 2.Qxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Sxg4#
- 1...d5
- 2.Sc6#
- 1...Bxa1!
- threat
- 1.Qc1?
- threat
- 2.Qxb2#
- 2.Qxe3#
- 1...Kd4
- 2.Bf6#
- 2.Qxb2#
- 1...Ba1
- 2.Qxe3#
- 2.Qxa1#
- 1...Ba3
- 2.Qxe3#
- 2.Qc3#
- 1...Bc3
- 2.Qxe3#
- 2.Qxc3#
- 1...Bd4
- 2.Sxg4#
- 1...d5
- 2.Sc6#
- 2.Qxe3#
- 1...Bxc1!
- threat
- 1.Qh1?
- threat
- 2.Qe4#
- 2.Qd5#
- 1...d5
- 2.Sc6#
- 2.Qxd5#
- 1...Kd4!
- threat
- 1.f6+?
- 1...Kd4
- 2.Sc2#
- 2.Rd5#
- 1...Ke6!
- 1...Kd4
- 1.Kg6?
- Keys
- 1.Rh4!
- 1...Kd4
- 2.Sf3#
- 1...d6
- 2.Bf6#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Sxg4#
- 1...d5
- 2.Sc6#
- 1...Kd4
- 1.Rh4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(a);OGATEB::QAB(A),XB(a)
- B(a);N_GUARD::QAB(A)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);SBLOCK::S(C),XP(c)
- P(f);N_GUARD,SBLOCK::S(F)
- P(f);SBLOCK::B(J)
- Tries
- Try
- K(K);P-FLIGHT
- Vars
- B(a);OGATEB::QAB(A),XB(a)
- B(a);N_GUARD::QAB(A)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);SBLOCK::S(C),XP(c)
- P(f);N_GUARD,SBLOCK::S(F)
- P(f);SBLOCK::B(J)
- Refutation
- K(d);S_FLIGHT
- Try
- K(K);P-FLIGHT
- Vars
- B(a);OGATEB::QAB(A),XB(a)
- B(a);N_GUARD::QAB(A)
- B(a);N_GUARD::QAB(A),XB(a)
- P(f);N_GUARD,SBLOCK::S(F)
- P(f);SBLOCK::B(J)
- Refutation
- K(d);S_FLIGHT
- Try
- B(D);
- Vars
- P(f);SBLOCK::B(J)
- B(a);OGATEB::QAB(A),XB(a)
- B(a);N_GUARD::QAB(A)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);SBLOCK::S(C),XP(c)
- P(f);N_GUARD,SBLOCK::S(F)
- Refutation
- K(d);S_FLIGHT
- Try
- R(I);
- Vars
- P(c);N_GUARD,XR(I)::S(C)
- P(f);SBLOCK::B(J)
- B(a);OGATEB::QAB(A),XB(a)
- B(a);N_GUARD::QAB(A)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);SBLOCK::S(C),XP(c)
- P(f);N_GUARD,SBLOCK::S(F)
- Refutation
- K(d);S_FLIGHT
- Try
- R(I);
- Vars
- P(f);SBLOCK::B(J)
- B(a);OGATEB::QAB(A),XB(a)
- B(a);N_GUARD::QAB(A)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);SBLOCK::S(C),XP(c)
- P(f);N_GUARD,SBLOCK::S(F)
- Refutation
- K(d);S_FLIGHT
- Try
- R(I);
- Vars
- P(f);SBLOCK::B(J)
- B(a);OGATEB::QAB(A),XB(a)
- B(a);N_GUARD::QAB(A)
- B(a);N_GUARD::QAB(A),XB(a)
- P(f);N_GUARD,SBLOCK::S(F)
- Refutation
- K(d);S_FLIGHT
- Try
- R(I);
- Vars
- P(f);SBLOCK::B(J)
- B(a);OGATEB::QAB(A),XB(a)
- B(a);N_GUARD::QAB(A)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);SBLOCK::S(C),XP(c)
- P(f);N_GUARD,SBLOCK::S(F)
- Refutation
- K(d);S_FLIGHT
- Try
- R(I);
- Vars
- P(f);SBLOCK::B(J)
- B(a);OGATEB::QAB(A),XB(a)
- B(a);N_GUARD::QAB(A)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);SBLOCK::S(C),XP(c)
- P(f);N_GUARD,SBLOCK::S(F)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- K(d);S_FLIGHT::QAB(A),XB(a)
- B(a);::QAR2(A),XP(b)
- B(a);N_GUARD::QAB(A)
- B(a);SBLOCK::S(C),XP(c)
- Refutation
- P(b);XQ(A)
- Try
- Q(A);P_PINB(a)
- Threat
- QAB(A),XB(a)
- Vars
- K(d);S_FLIGHT::QAB(A),XB(a)
- B(a);OGATE::QAB(A),XB(a)
- B(a);::S(C),XP(c)
- P(f);N_GUARD,SBLOCK::S(F)
- Refutation
- B(a);N_SPINB(a),XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(a);SBLOCK::S(C),XP(c)
- Refutation
- B(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Refutation
- K(d);S_FLIGHT
- Try
- P(H);CHECK
- Refutation
- K(d);P-FLIGHT,P_PINP(H)
- Try
- Actual
- R(I);
- Vars
- K(d);P_SPINP(c),S_FLIGHT::S(C)
- P(f);SBLOCK::B(J)
- B(a);OGATEB::QAB(A),XB(a)
- B(a);N_GUARD::QAB(A)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);SBLOCK::S(C),XP(c)
- P(f);N_GUARD,SBLOCK::S(F)
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).