MESON Chess Problem Database
Problem Display
PID: 270424 (6B1/1pr3p1/p2Q1p2/2nP4/2Nk4/4RK2/bN1P1p2/B2n1r2 w - - 0 1)
Gurr, John
Sunday Referee, 1931
(First published on Sun Oct 4 1931)
#2
9 + 11
| 15239 | Valois Notebooks | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Rc6
- 2.dxc6#
- 1...Bxc4
- 2.Sxd1#
- 1...Sc3
- 2.dxc3#
- 1...Sb3
- 2.Rd3#
- 2.Re4#
- 1...Sd3
- 2.Rxd3#
- 2.Re4#
- 1...Sa4
- 2.Rd3#
- 2.Re4#
- 1...Se4
- 2.Rd3#
- 2.Rxe4#
- 1...Se6
- 2.Rd3#
- 2.Re4#
- 2.dxe6#
- 1...Sd7
- 2.Rd3#
- 2.Re4#
- 1...f5
- 2.Qe5#
- 1...g5
- 2.Qxf6#
- 1...g6
- 2.Qxf6#
- 1...Rc6
- Tries
- 1.Sa3?
- threat
- 2.Sxd1#
- 2.Sc2#
- 1...Bxd5+
- 2.Qxd5#
- 1...Sxb2
- 2.Bxb2#
- 1...Bb1
- 2.Sxd1#
- 1...Bb3
- 2.Sxd1#
- 1...Sc3
- 2.Sc2#
- 2.dxc3#
- 1...Sb3
- 2.Rd3#
- 2.Re4#
- 1...Sd3
- 2.Rxd3#
- 2.Re4#
- 1...Sa4
- 2.Rd3#
- 2.Re4#
- 1...Se4
- 2.Rd3#
- 2.Rxe4#
- 1...Se6
- 2.Rd3#
- 2.Re4#
- 1...Sd7
- 2.Rd3#
- 2.Re4#
- 1...Sxe3!
- threat
- 1.Sa5?
- threat
- 2.Sxd1#
- 1...Bxd5+
- 2.Qxd5#
- 1...Sxb2
- 2.Bxb2#
- 1...Sc3
- 2.dxc3#
- 1...Sb3
- 2.Rd3#
- 2.Re4#
- 1...Sd3
- 2.Rxd3#
- 2.Re4#
- 1...Sa4
- 2.Rd3#
- 2.Re4#
- 1...Se4
- 2.Rd3#
- 2.Rxe4#
- 1...Se6
- 2.Rd3#
- 2.Re4#
- 1...Sd7
- 2.Rd3#
- 2.Re4#
- 1...Sxe3!
- threat
- 1.Sb6?
- threat
- 2.Sxd1#
- 1...Bxd5+
- 2.Qxd5#
- 1...Sxb2
- 2.Bxb2#
- 1...Sc3
- 2.dxc3#
- 1...Sb3
- 2.Rd3#
- 2.Re4#
- 1...Sd3
- 2.Rxd3#
- 2.Re4#
- 1...Sa4
- 2.Rd3#
- 2.Re4#
- 1...Se4
- 2.Rd3#
- 2.Rxe4#
- 1...Se6
- 2.Rd3#
- 2.Re4#
- 1...Sd7
- 2.Rd3#
- 2.Re4#
- 1...Sxe3!
- threat
- 1.Qxc5+?
- 1...Rxc5
- 2.Rd3#
- 2.Re4#
- 1...Kxc5!
- 1...Rxc5
- 1.Sa3?
- Keys
- 1.Se5!
- threat
- 2.Sxd1#
- 1...Bxd5+
- 2.Qxd5#
- 1...Sxb2
- 2.Bxb2#
- 1...Sxe3
- 2.Sd1#
- 1...fxe5
- 2.Qxe5#
- 1...Sc3
- 2.dxc3#
- 1...Sb3
- 2.Rd3#
- 2.Re4#
- 1...Sd3
- 2.Rxd3#
- 2.Re4#
- 1...Sa4
- 2.Rd3#
- 2.Re4#
- 1...Se4
- 2.Rd3#
- 2.Rxe4#
- 1...Se6
- 2.Rd3#
- 2.Re4#
- 1...Sd7
- 2.Rd3#
- 2.Re4#
- threat
- 1.Se5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 5
- Sets
- R(j);OGATE::QAR(H)+P(G),XR(j)
- B(c);SBLOCK,XS(F)::B(A)+S(B),XS(a)
- S(a);OGATE::P(C),XS(a)
- P(h);N_GUARD::QAB1(H)
- P(k);N_GUARD::QAB(H),XP(h)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(c);CHECK,OGATE,P_SPINB(c),XP(G)::QAR1(H),XB(c)
- S(a);OGATE,P_SPINS(a),XS(B)::B(A),XS(a)
- B(c);::B(A)+S(B),XS(a)
- Refutation
- S(a);XR(D)
- Try
- S(F);
- Threat
- B(A)+S(B),XS(a)
- Vars
- B(c);CHECK,OGATE,P_SPINB(c),XP(G)::QAR1(H),XB(c)
- S(a);OGATE,P_SPINS(a),XS(B)::B(A),XS(a)
- S(a);OGATE::P(C),XS(a)
- Refutation
- S(a);XR(D)
- Try
- S(F);
- Threat
- B(A)+S(B),XS(a)
- Vars
- B(c);CHECK,OGATE,P_SPINB(c),XP(G)::QAR1(H),XB(c)
- S(a);OGATE,P_SPINS(a),XS(B)::B(A),XS(a)
- S(a);OGATE::P(C),XS(a)
- Refutation
- S(a);XR(D)
- Try
- Q(H);CHECK,XS(f)
- Refutation
- K(e);S_FLIGHT,XQ(H)
- Try
- Actual
- S(F);
- Threat
- B(A)+S(B),XS(a)
- Vars
- B(c);CHECK,OGATE,P_SPINB(c),XP(G)::QAR1(H),XB(c)
- S(a);OGATE,P_SPINS(a),XS(B)::B(A),XS(a)
- S(a);XR(D)::B(A)+S(B)
- P(h);OGATE,XS(F)::QAB1(H),XP(h)
- S(a);OGATE::P(C),XS(a)
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