MESON Chess Problem Database
Problem Display
PID: 230810 (2R2B2/1pN5/1P1n4/b1k1N3/8/2n3K1/2Q5/8 w - - 0 1)
Thursby, John Ormerod Scarlett
Preston Guardian, 1882
(First published on Wed Mar 22 1882)
#2
7 + 5
| 15239 | Valois Notebooks | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Kb4
- 2.Bxd6#
- 1...Kxb6
- 2.Qf2#
- 1...Bb4
- 2.Qf2#
- 1...Bxb6
- 2.Qxc3#
- 1...Kb4
- Tries
- 1.Kg2?
- 1...Kb4
- 2.Bxd6#
- 1...Kxb6
- 2.Qf2#
- 1...Bxb6
- 2.Qxc3#
- 1...Bb4
- 2.Qf2#
- 1...Kd4!
- 1...Kb4
- 1.Kh2?
- 1...Kb4
- 2.Bxd6#
- 1...Kxb6
- 2.Qf2#
- 1...Bxb6
- 2.Qxc3#
- 1...Bb4
- 2.Qf2#
- 1...Kd4!
- 1...Kb4
- 1.Kf3?
- 1...Kb4
- 2.Bxd6#
- 1...Kxb6
- 2.Qf2#
- 1...Bxb6
- 2.Qxc3#
- 1...Bb4
- 2.Qf2#
- 1...Kd4!
- 1...Kb4
- 1.Kh3?
- 1...Kb4
- 2.Bxd6#
- 1...Kxb6
- 2.Qf2#
- 1...Bxb6
- 2.Qxc3#
- 1...Bb4
- 2.Qf2#
- 1...Kd4!
- 1...Kb4
- 1.Kg4?
- 1...Kb4
- 2.Bxd6#
- 1...Kxb6
- 2.Qf2#
- 1...Bxb6
- 2.Qxc3#
- 1...Bb4
- 2.Qf2#
- 1...Kd4!
- 1...Kb4
- 1.Kh4?
- 1...Kb4
- 2.Bxd6#
- 1...Kxb6
- 2.Qf2#
- 1...Bxb6
- 2.Qxc3#
- 1...Bb4
- 2.Qf2#
- 1...Kd4!
- 1...Kb4
- 1.Bxd6+?
- 1...Kd4
- 2.Qd3#
- 1...Kxb6
- 2.Qf2#
- 1...Kxd6!
- 1...Kd4
- 1.Be7?
- 1...Kb4
- 2.Bxd6#
- 1...Kxb6
- 2.Qf2#
- 1...Bxb6
- 2.Qxc3#
- 1...Bb4
- 2.Qf2#
- 1...Kd4!
- 1...Kb4
- 1.Qxc3+?
- 1...Kxb6
- 2.Qd4#
- 2.Qe3#
- 1...Bxc3!
- 1...Kxb6
- 1.Kg2?
- Keys
- 1.Kf4!
- 1...Kb4
- 2.Bxd6#
- 1...Kd4
- 2.Qf2#
- 1...Kxb6
- 2.Qf2#
- 1...Bxb6
- 2.Qxc3#
- 1...Bb4
- 2.Qf2#
- 1...Kb4
- 1.Kf4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(c);N_SPINS(a),P_SPINS(d),S_FLIGHT::B(G),XS(d)
- K(c);N_SPINS(a),S_FLIGHT,XP(D)::QAB(A)
- B(b);SBLOCK::QAB(A)
- B(b);N_GUARD,SBLOCK,XP(D)::QAR2(A),XS(a)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- K(c);N_SPINS(a),P_SPINS(d),S_FLIGHT::B(G),XS(d)
- K(c);N_SPINS(a),S_FLIGHT,XP(D)::QAB(A)
- B(b);N_GUARD,SBLOCK,XP(D)::QAR2(A),XS(a)
- B(b);SBLOCK::QAB(A)
- Refutation
- K(c);N_SPINS(a),S_FLIGHT
- Try
- K(B);S_FLIGHT
- Vars
- K(c);N_SPINS(a),P_SPINS(d),S_FLIGHT::B(G),XS(d)
- K(c);N_SPINS(a),S_FLIGHT,XP(D)::QAB(A)
- B(b);N_GUARD,SBLOCK,XP(D)::QAR2(A),XS(a)
- B(b);SBLOCK::QAB(A)
- Refutation
- K(c);N_SPINS(a),S_FLIGHT
- Try
- K(B);P-FLIGHT
- Vars
- K(c);N_SPINS(a),P_SPINS(d),S_FLIGHT::B(G),XS(d)
- K(c);N_SPINS(a),S_FLIGHT,XP(D)::QAB(A)
- B(b);N_GUARD,SBLOCK,XP(D)::QAR2(A),XS(a)
- B(b);SBLOCK::QAB(A)
- Refutation
- K(c);N_SPINS(a),S_FLIGHT
- Try
- K(B);P-FLIGHT
- Vars
- K(c);N_SPINS(a),P_SPINS(d),S_FLIGHT::B(G),XS(d)
- K(c);N_SPINS(a),S_FLIGHT,XP(D)::QAB(A)
- B(b);N_GUARD,SBLOCK,XP(D)::QAR2(A),XS(a)
- B(b);SBLOCK::QAB(A)
- Refutation
- K(c);N_SPINS(a),S_FLIGHT
- Try
- K(B);P-FLIGHT
- Vars
- K(c);N_SPINS(a),P_SPINS(d),S_FLIGHT::B(G),XS(d)
- K(c);N_SPINS(a),S_FLIGHT,XP(D)::QAB(A)
- B(b);N_GUARD,SBLOCK,XP(D)::QAR2(A),XS(a)
- B(b);SBLOCK::QAB(A)
- Refutation
- K(c);N_SPINS(a),S_FLIGHT
- Try
- K(B);S_FLIGHT
- Vars
- K(c);N_SPINS(a),P_SPINS(d),S_FLIGHT::B(G),XS(d)
- K(c);N_SPINS(a),S_FLIGHT,XP(D)::QAB(A)
- B(b);N_GUARD,SBLOCK,XP(D)::QAR2(A),XS(a)
- B(b);SBLOCK::QAB(A)
- Refutation
- K(c);N_SPINS(a),S_FLIGHT
- Try
- B(G);CHECK,XS(d)
- Vars
- K(c);N_SPINS(a),S_FLIGHT::QAR1(A)
- K(c);N_SPINS(a),S_FLIGHT,XP(D)::QAB(A)
- Refutation
- K(c);N_SPINS(a),S_FLIGHT,XB(G)
- Try
- B(G);
- Vars
- K(c);N_SPINS(a),P_SPINS(d),S_FLIGHT::B(G),XS(d)
- K(c);N_SPINS(a),S_FLIGHT,XP(D)::QAB(A)
- B(b);N_GUARD,SBLOCK,XP(D)::QAR2(A),XS(a)
- B(b);SBLOCK::QAB(A)
- Refutation
- K(c);N_SPINS(a),S_FLIGHT
- Try
- Q(A);CHECK,P_PINS(d),XS(a)
- Refutation
- B(b);XQ(A)
- Try
- Actual
- K(B);S_FLIGHT
- Vars
- K(c);N_SPINS(a),P_SPINS(d),S_FLIGHT::B(G),XS(d)
- K(c);N_SPINS(a),S_FLIGHT::QAB(A)
- K(c);N_SPINS(a),S_FLIGHT,XP(D)::QAB(A)
- B(b);N_GUARD,SBLOCK,XP(D)::QAR2(A),XS(a)
- B(b);SBLOCK::QAB(A)
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