MESON Chess Problem Database
Problem Display
PID: 78765 (8/1QqN1K2/1pn3R1/3k1B2/1R1B2rp/1P1N2pb/2P2b2/8 w - - 0 1)
Vaughan, Colin V
The Tablet, 1960
(First published on Sat May 28 1960)
#2
10 + 9
| 15239 | Valois Notebooks | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qf4
- 2.Sxb6#
- 2.Qxc6#
- 1...Qe5
- 2.Sxb6#
- 2.Qxc6#
- 1...Qd6
- 2.Sxb6#
- 1...Qb8
- 2.Sxb6#
- 2.Qxc6#
- 1...Qd8
- 2.Qxc6#
- 1...Qxd7+
- 2.Qxd7#
- 1...Qc8
- 2.Sxb6#
- 1...Rxd4
- 2.Rb5#
- 1...Bxd4
- 2.c4#
- 1...b5
- 2.Qxb5#
- 1...Qf4
- Tries
- 1.Sf4+?
- 1...Qxf4
- 2.Sxb6#
- 2.Qxc6#
- 1...Rxf4!
- 1...Qxf4
- 1.Bxf2?
- threat
- 2.Rb5#
- 1...Qxd7+
- 2.Qxd7#
- 1...Rxb4
- 2.Sxb4#
- 1...Rxg6
- 2.Rd4#
- 1...Qd6
- 2.Sxb6#
- 1...Rc4
- 2.bxc4#
- 1...b5
- 2.Rxb5#
- 2.Qxb5#
- 1...gxf2!
- threat
- 1.Be3?
- threat
- 2.Rb5#
- 1...Qxd7+
- 2.Qxd7#
- 1...Rxb4
- 2.Sxb4#
- 1...Rxg6
- 2.Rd4#
- 1...Qd6
- 2.Sxb6#
- 1...Rc4
- 2.bxc4#
- 1...b5
- 2.Rxb5#
- 2.Qxb5#
- 1...Bxe3!
- threat
- 1.Rd6+?
- 1...Qxd6
- 2.Sxb6#
- 1...Kxd6!
- 1...Qxd6
- 1.Qxc7?
- threat
- 2.Sxb6#
- 2.Sf6#
- 2.Rd6#
- 2.Qd6#
- 2.Qxc6#
- 1...Se5+
- 2.Qxe5#
- 1...Rxg6
- 2.Sf4#
- 2.Sxb6#
- 1...Bxd4
- 2.Rd6#
- 2.Qd6#
- 2.Qxc6#
- 2.c4#
- 1...Sxb4
- 2.Rd6#
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 1...Sxd4
- 2.Sxb6#
- 2.Sf6#
- 2.Rd6#
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.c4#
- 1...Sa5
- 2.Sxb6#
- 2.Sf6#
- 2.Rd6#
- 2.Qe5#
- 2.Qd6#
- 1...Sa7
- 2.Sxb6#
- 2.Sf6#
- 2.Rd6#
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 1...Se7
- 2.Sxb6#
- 2.Sf6#
- 2.Rd6#
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 1...Sb8
- 2.Sxb6#
- 2.Sf6#
- 2.Rd6#
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 1...b5
- 2.Sb6#
- 2.Sf6#
- 2.Rd6#
- 2.Qd6#
- 2.Qxc6#
- 1...Sd8+!
- threat
- 1.c3?
- threat
- 2.Rb5#
- 1...Qxd7+
- 2.Qxd7#
- 1...Bxd4
- 2.c4#
- 1...Qd6
- 2.Sxb6#
- 1...b5
- 2.Rxb5#
- 2.Qxb5#
- 1...Rxg6!
- threat
- 1.Sf4+?
- Keys
- 1.Be5!
- threat
- 2.Be6#
- 1...Qxd7+
- 2.Qxd7#
- 1...Qxe5
- 2.Qxc6#
- 1...Rxb4
- 2.Sxb4#
- 1...Rxg6
- 2.Sf4#
- 2.Be4#
- 2.c4#
- 1...Qd6
- 2.Rxd6#
- 1...Rc4
- 2.bxc4#
- 1...Rd4
- 2.Rb5#
- 1...Re4
- 2.Bxe4#
- 1...Rf4
- 2.Sxf4#
- 1...Rg5
- 2.Sf4#
- 2.Be4#
- 2.c4#
- 1...Bd4
- 2.c4#
- threat
- 1.Be5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 3
- Sets
- Q(i);N_PINS(I)::S(I),XP(g)
- Q(i);N_GUARD,N_PINS(I)::QAB1(H),XS(h)
- Q(i);CHECK,OGATE,XS(I)::QAR2(H),XQ(i)
- R(d);SBLOCK,XB(E)::R(D)
- B(a);SBLOCK,XB(E)::P(A)
- P(g);OGATE::QAR2(H),XP(g)
- Tries
- Try
- S(C);CHECK
- Refutation
- R(d);P_PINB(F),XS(C)
- Try
- B(E);XB(a)
- Threat
- R(D)
- Vars
- Q(i);CHECK,OGATE,XS(I)::QAR2(H),XQ(i)
- R(d);XR(D)::S(C),XR(d)
- R(d);N_GUARD,XR(G)::R1(D)
- Q(i);N_PINS(I)::S(I),XP(g)
- R(d);OGATE::P(B),XR(d)
- Refutation
- P(b);XB(E)
- Try
- B(E);
- Threat
- R(D)
- Vars
- Q(i);CHECK,OGATE,XS(I)::QAR2(H),XQ(i)
- R(d);XR(D)::S(C),XR(d)
- R(d);N_GUARD,XR(G)::R1(D)
- Q(i);N_PINS(I)::S(I),XP(g)
- R(d);OGATE::P(B),XR(d)
- Refutation
- B(a);XB(E)
- Try
- R(G);CHECK
- Vars
- Q(i);N_PINS(I),SBLOCK,XR(G)::S(I),XP(g)
- Refutation
- K(f);N_SPINS(h),P-FLIGHT,XR(G)
- Try
- Q(H);N_PINS(h),N_SPINS(I),XQ(i)
- Threat
- DUALS(5)
- Vars
- S(h);CHECK,N_GUARD::QAR1(H),XS(h)
- Refutation
- S(h);CHECK
- Try
- P(A);
- Threat
- R(D)
- Vars
- Q(i);CHECK,OGATE,XS(I)::QAR2(H),XQ(i)
- B(a);SBLOCK,XB(E)::P(A)
- Q(i);N_PINS(I)::S(I),XP(g)
- Refutation
- R(d);XR(G)
- Try
- Actual
- B(E);
- Threat
- B(F)
- Vars
- Q(i);CHECK,OGATE,XS(I)::QAR2(H),XQ(i)
- Q(i);N_GUARD,N_PINS(I),XB(E)::QAB1(H),XS(h)
- R(d);XR(D)::S(C),XR(d)
- Q(i);N_GUARD,N_PINS(I)::R1(G),XQ(i)
- R(d);OGATE::P(B),XR(d)
- R(d);S_CUTB(a)::R(D)
- R(d);N_GUARD::B(F),XR(d)
- R(d);N_GUARD,P_PINB(F)::S(C),XR(d)
- B(a);S_CUTR(d)::P(A)
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