MESON Chess Problem Database
Problem Display
PID: 231186 (8/8/n1N5/4p3/Q2p4/pr3B1K/Rnk1P3/R3B3 w - - 0 1)
Easter, Norris
Western Morning News, 1927
(First published on Sat Dec 17 1927)
#2
8 + 7
| 6490 | yacpdb | 2021 |
| 15239 | Valois Notebooks | 2024 |
SOLUTION
- SOUND
- Sets
- 1...Sb4
- 2.Sxb4#
- 1...Sc5
- 2.Sb4#
- 1...Sc7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...e4
- 2.Sxd4#
- 1...Sb4
- Tries
- 1.Kg2?
- 1...Sb4
- 2.Sxb4#
- 1...Sc5
- 2.Sb4#
- 1...Sc7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...e4
- 2.Sxd4#
- 1...d3!
- 1...Sb4
- 1.Kh2?
- 1...Sb4
- 2.Sxb4#
- 1...Sc5
- 2.Sb4#
- 1...Sc7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...e4
- 2.Sxd4#
- 1...d3!
- 1...Sb4
- 1.Kg3?
- 1...Sb4
- 2.Sxb4#
- 1...Sc5
- 2.Sb4#
- 1...Sc7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...e4
- 2.Sxd4#
- 1...d3!
- 1...Sb4
- 1.Kg4?
- 1...Sb4
- 2.Sxb4#
- 1...Sc5
- 2.Sb4#
- 1...Sc7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...e4
- 2.Sxd4#
- 1...d3!
- 1...Sb4
- 1.Kh4?
- 1...Sb4
- 2.Sxb4#
- 1...Sc5
- 2.Sb4#
- 1...Sc7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...e4
- 2.Sxd4#
- 1...d3!
- 1...Sb4
- 1.Rxa3?
- threat
- 2.Qxb3#
- 1...Sc5
- 2.Sb4#
- 1...Sxa4!
- threat
- 1.Qxd4?
- threat
- 2.Qd1#
- 2.Qd2#
- 1...exd4
- 2.Sxd4#
- 1...Rc3
- 2.Qxc3#
- 2.Qd1#
- 1...Rd3
- 2.Qxd3#
- 1...Re3
- 2.Qd1#
- 1...Rb4
- 2.Qc3#
- 2.Qd1#
- 2.Qd3#
- 1...Rb5
- 2.Qc3#
- 2.Qd1#
- 2.Qd3#
- 2.Qc4#
- 1...Rb6
- 2.Qc3#
- 2.Qd1#
- 2.Qd3#
- 2.Qc4#
- 1...Rb7
- 2.Qc3#
- 2.Qd1#
- 2.Qd3#
- 2.Qc4#
- 1...Rb8
- 2.Qc3#
- 2.Qd1#
- 2.Qd3#
- 2.Qc4#
- 1...Rxf3+!
- threat
- 1.e3?
- 1...Kd3
- 2.Qxb3#
- 1...dxe3
- 2.Be4#
- 1...d3
- 2.Bd1#
- 1...Sb4
- 2.Sxb4#
- 1...Sc5
- 2.Sb4#
- 1...Sc7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...e4!
- 1...Kd3
- 1.Kg2?
- Keys
- 1.e4!
- 1...Kd3
- 2.Qxb3#
- 1...dxe4 ep
- 2.Be4#
- 1...d3
- 2.Bd1#
- 1...Sb4
- 2.Sxb4#
- 1...Sc5
- 2.Sb4#
- 1...Sc7
- 2.Sb4#
- 1...Sb8
- 2.Sb4#
- 1...Kd3
- 1.e4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
- P(f);N_GUARD::S(H),XP(e)
- Tries
- Try
- K(F);N_SPINB(E),S_FLIGHT
- Vars
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
- P(f);N_GUARD::S(H),XP(e)
- Refutation
- P(e);
- Try
- K(F);N_SPINB(E),P-FLIGHT
- Vars
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
- P(f);N_GUARD::S(H),XP(e)
- Refutation
- P(e);
- Try
- K(F);P-FLIGHT
- Vars
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
- P(f);N_GUARD::S(H),XP(e)
- Refutation
- P(e);N_PINB(E)
- Try
- K(F);N_SPINB(E),S_FLIGHT
- Vars
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
- P(f);N_GUARD::S(H),XP(e)
- Refutation
- P(e);
- Try
- K(F);N_SPINB(E),P-FLIGHT
- Vars
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
- P(f);N_GUARD::S(H),XP(e)
- Refutation
- P(e);
- Try
- R(C);N_PINS(a),XP(c)
- Threat
- QAB1(G),XR(d)
- Vars
- S(g);N_GUARD::S(H)
- Refutation
- S(a);N_SPINR(d),XQ(G)
- Try
- Q(G);N_PINR(d),XP(e)
- Threat
- DUALS(2)
- Vars
- P(f);XQ(G)::S(H),XP(f)
- R(d);N_GUARD::QAB1(G),XR(d)
- R(d);::QAB1(G)
- Refutation
- R(d);CHECK,XB(E)
- Try
- P(D);N_SPINB(E)
- Vars
- K(b);N_SPINR(d),N_SPINS(a),S_FLIGHT::QAR2(G),XR(d)
- P(e);N_GUARD,XP(D)::B(E)
- P(e);SBLOCK::B(E)
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
- Refutation
- P(f);
- Try
- Actual
- P(D);
- Vars
- K(b);N_PINB(E),N_SPINR(d),N_SPINS(a),S_FLIGHT::QAR2(G),XR(d)
- P(e);EP,N_PINB(E),XP(D)::B(E)
- P(e);N_PINB(E),SBLOCK::B(E)
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
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