MESON Chess Problem Database
Problem Display
PID: 224466 (3B4/8/6K1/3pkp2/1P6/3Q1B2/8/8 w - - 0 1)
Robbins, Alexander Henry
Philadelphia Times, 1887
#2
5 + 3
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kf4
- 2.Bc7#
- 1...Kd6
- 2.Qxd5#
- 1...Ke6
- 2.Qxd5#
- 1...f4
- 2.Qxd5#
- 1...Kf4
- Tries
- 1.Kg5?
- threat
- 2.Qxd5#
- 1...Kd6
- 2.Qxd5#
- 1...Ke6
- 2.Qxd5#
- 1...d4!
- threat
- 1.Kh5?
- 1...Kf4
- 2.Bc7#
- 1...Kd6
- 2.Qxd5#
- 1...Ke6
- 2.Qxd5#
- 1...f4
- 2.Qxd5#
- 1...d4!
- 1...Kf4
- 1.Kh6?
- 1...Kf4
- 2.Bc7#
- 1...Kd6
- 2.Qxd5#
- 1...Ke6
- 2.Qxd5#
- 1...f4
- 2.Qxd5#
- 1...d4!
- 1...Kf4
- 1.Kf7?
- threat
- 2.Bc7#
- 1...Kd6
- 2.Qxd5#
- 1...Kf4!
- threat
- 1.Be7?
- threat
- 2.Qe3#
- 1...Kf4
- 2.Bd6#
- 1...d4
- 2.Qxf5#
- 1...f4
- 2.Qxd5#
- 1...Ke6!
- threat
- 1.Qe2+?
- 1...Kd4
- 2.Bf6#
- 1...Kf4
- 2.Bc7#
- 1...Kd6!
- 1...Kd4
- 1.Qc4?
- 1...Kd6
- 2.Qxd5#
- 1...Ke6
- 2.Qxd5#
- 1...d4
- 2.Bc7#
- 1...f4
- 2.Qxd5#
- 1...dxc4!
- 1...Kd6
- 1.Qxf5+?
- 1...Kd6
- 2.Qxd5#
- 1...Kd4!
- 1...Kd6
- 1.Qd2?
- 1...Kd6
- 2.Qxd5#
- 1...Ke6
- 2.Qxd5#
- 1...f4
- 2.Qxd5#
- 1...d4!
- 1...Kd6
- 1.Qd4+?
- 1...Kd6
- 2.Qxd5#
- 1...Ke6
- 2.Qxd5#
- 1...Kxd4!
- 1...Kd6
- 1.b5?
- 1...Kf4
- 2.Bc7#
- 1...Kd6
- 2.Qxd5#
- 1...Ke6
- 2.Qxd5#
- 1...f4
- 2.Qxd5#
- 1...d4!
- 1...Kf4
- 1.Kg5?
- Keys
- 1.Qb3!
- 1...Kd4
- 2.Bf6#
- 1...Kf4
- 2.Bc7#
- 1...Kd6
- 2.Qxd5#
- 1...Ke6
- 2.Qxd5#
- 1...d4
- 2.Bc7#
- 1...f4
- 2.Qxd5#
- 1...Kd4
- 1.Qb3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(b);S_FLIGHT::B(E)
- K(b);P_SPINP(a),S_FLIGHT::QAR1(A),XP(a)
- K(b);P-FLIGHT::QAB1(A),XP(a)
- P(c);SBLOCK::QAR1(A),XP(a)
- Tries
- Try
- K(D);P-FLIGHT
- Threat
- QAR1(A),XP(a)
- Vars
- K(b);P_SPINP(a),S_FLIGHT::QAR1(A),XP(a)
- K(b);P-FLIGHT::QAB1(A),XP(a)
- Refutation
- P(a);
- Try
- K(D);S_FLIGHT
- Vars
- K(b);S_FLIGHT::B(E)
- K(b);P_SPINP(a),S_FLIGHT::QAR1(A),XP(a)
- K(b);P-FLIGHT::QAB1(A),XP(a)
- P(c);SBLOCK::QAR1(A),XP(a)
- Refutation
- P(a);
- Try
- K(D);P-FLIGHT
- Vars
- K(b);S_FLIGHT::B(E)
- K(b);P_SPINP(a),S_FLIGHT::QAR1(A),XP(a)
- K(b);P-FLIGHT::QAB1(A),XP(a)
- P(c);SBLOCK::QAR1(A),XP(a)
- Refutation
- P(a);
- Try
- K(D);S_FLIGHT
- Threat
- B(E)
- Vars
- K(b);P_SPINP(a),S_FLIGHT::QAR1(A),XP(a)
- Refutation
- K(b);S_FLIGHT
- Try
- B(E);
- Threat
- QAR2(A)
- Vars
- K(b);S_FLIGHT::B(E)
- P(a);SBLOCK::QAR1(A),XP(c)
- P(c);SBLOCK::QAR1(A),XP(a)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(A);CHECK
- Vars
- K(b);S_FLIGHT::B(E)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(A);
- Vars
- K(b);S_FLIGHT::QAR1(A),XP(a)
- K(b);P-FLIGHT,P_SPINP(a)::QAB1(A),XP(a)
- P(a);::B(E)
- P(c);SBLOCK::QAR1(A),XP(a)
- Refutation
- P(a);XQ(A)
- Try
- Q(A);CHECK,XP(c)
- Vars
- K(b);OGATE,S_FLIGHT::QAR1(A),XP(a)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(A);
- Vars
- K(b);P_SPINP(a),S_FLIGHT::QAR1(A),XP(a)
- K(b);P-FLIGHT::QAB1(A),XP(a)
- P(c);SBLOCK::QAR1(A),XP(a)
- Refutation
- P(a);
- Try
- Q(A);CHECK
- Vars
- K(b);P_SPINP(a),S_FLIGHT::QAR1(A),XP(a)
- K(b);P-FLIGHT::QAB1(A),XP(a)
- Refutation
- K(b);S_FLIGHT,XQ(A)
- Try
- P(C);
- Vars
- K(b);S_FLIGHT::B(E)
- K(b);P_SPINP(a),S_FLIGHT::QAR1(A),XP(a)
- K(b);P-FLIGHT::QAB1(A),XP(a)
- P(c);SBLOCK::QAR1(A),XP(a)
- Refutation
- P(a);
- Try
- Actual
- Q(A);
- Vars
- K(b);S_FLIGHT::B(E)
- K(b);S_FLIGHT::QAR1(A),XP(a)
- K(b);P-FLIGHT,P_SPINP(a)::QAB1(A),XP(a)
- P(a);SBLOCK::B(E)
- P(c);SBLOCK::QAR1(A),XP(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).