MESON Chess Problem Database
Problem Display
PID: 28921 (3R1K2/5N1b/n1B5/7R/N1k2rp1/P7/P2P1Q1q/1r4b1 w - - 0 1)
Shire, David J
British Chess Magazine, 1982
#2
10 + 8
| 3256 | David Shire Selected Chess Problems | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sb2#
- 2.Sb6#
- 2.Bb5#
- 1...Rc1
- 2.Sb2#
- 2.Sb6#
- 2.Bb5#
- 1...Rd1
- 2.Sb2#
- 2.Sb6#
- 2.Bb5#
- 1...Re1
- 2.Sb2#
- 2.Sb6#
- 2.Bb5#
- 1...Rf1
- 2.Sb2#
- 2.Sb6#
- 2.Bb5#
- 1...Rb2
- 2.Sxb2#
- 1...Rb5
- 2.Bxb5#
- 1...Rb6
- 2.Sxb6#
- 1...Rf3
- 2.Rd4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.d3#
- 1...Rf5
- 2.Rd4#
- 2.d3#
- 1...Rf6
- 2.Rd4#
- 1...Rxf7+
- 2.Qxf7#
- 1...Be4
- 2.Rd4#
- 1...Bf5
- 2.Se5#
- 1...Bg8
- 2.d3#
- 1...Sb4
- 2.Sb6#
- 2.Bb5#
- 2.Rc5#
- 1...Sc5
- 2.Rxc5#
- 1...Sc7
- 2.Rc5#
- 1...Sb8
- 2.Rc5#
- 1...Ra1
- Tries
- 1.Rf5?
- threat
- 2.Se5#
- 2.d3#
- 1...Rxf2
- 2.d3#
- 1...Rxf5
- 2.Rd4#
- 2.d3#
- 1...Bxf5
- 2.Se5#
- 1...Rd4
- 2.Rxd4#
- 1...Qg3
- 2.Se5#
- 1...Qh3
- 2.Se5#
- 1...Rd1
- 2.Sb2#
- 2.Sb6#
- 2.Se5#
- 2.Bb5#
- 1...Re1
- 2.Sb2#
- 2.Sb6#
- 2.Bb5#
- 2.d3#
- 1...Rb3
- 2.Se5#
- 1...Rb5
- 2.Bxb5#
- 2.d3#
- 1...Rf3
- 2.Rd4#
- 1...Re4
- 2.d3#
- 1...Sb4
- 2.Sb6#
- 2.Se5#
- 2.Bb5#
- 2.Rc5#
- 1...Sc5
- 2.Se5#
- 2.Rxc5#
- 1...Qh6+!
- threat
- 1.Qe2+?
- 1...Bd3
- 2.Qxd3#
- 2.Qe6#
- 1...Qxe2!
- 1...Bd3
- 1.Qxf4+?
- 1...Bd4
- 2.Se5#
- 2.Rxd4#
- 2.Qxd4#
- 1...Be4
- 2.Se5#
- 2.d3#
- 1...Qxf4!
- 1...Bd4
- 1.Rf5?
- Keys
- 1.Be4!
- threat
- 2.Rd4#
- 2.d3#
- 1...Rxf7+
- 2.Qxf7#
- 1...Qxf2
- 2.d3#
- 1...Qxh5
- 2.Qe2#
- 1...Rxf2
- 2.d3#
- 1...Rxe4
- 2.d3#
- 1...Bxf2
- 2.d3#
- 1...Bxe4
- 2.Rd4#
- 1...Rf5
- 2.Bd3#
- 1...Bf5
- 2.Sd6#
- 1...Sc5
- 2.Rxc5#
- 1...Qg3
- 2.Rd4#
- 1...Qh3
- 2.Rd4#
- 1...Rd1
- 2.Sb2#
- 2.Sb6#
- 2.Rd4#
- 1...Rb3
- 2.Rd4#
- 1...Rb8
- 2.d3#
- 1...Rf3
- 2.Rd4#
- 1...Sb4
- 2.Sb6#
- 2.Rc5#
- 2.Rd4#
- threat
- 1.Be4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 9
- REMOVED MATES = 8
- Sets
- R(a);N_GUARD::S(E),XR(a)
- R(a);N_GUARD::B(G),XR(a)
- R(e);N_GUARD::R1(I)
- R(e);N_GUARD,N_PINS(H)::R1(I),XR(e)
- R(e);N_PINS(H),S_CUTB(h)::P(B)
- R(e);CHECK,OGATE,XS(H)::QAB(C),XR(e)
- B(h);S_CUTR(e)::R1(I)
- B(h);N_PINS(H)::S(H)
- B(h);N_GUARD::P(B)
- S(g);N_GUARD::R1(F),XS(g)
- S(g);N_GUARD::R1(F)
- Tries
- Try
- R(F);N_SPINS(H)
- Threat
- DUALS(2)
- Vars
- R(e);XQ(C)::P(B)
- B(h);XR(F)::S(H)
- R(e);N_GUARD::R1(I),XR(e)
- Q(c);::S(H)
- R(a);::S(H)
- R(e);N_GUARD::R1(I)
- R(e);::P(B)
- Refutation
- Q(c);CHECK
- Try
- Q(C);CHECK
- Refutation
- Q(c);XQ(C)
- Try
- Q(C);CHECK,N_SPINS(H),XR(e)
- Refutation
- Q(c);P_PINS(H),XQ(C)
- Try
- Actual
- B(G);
- Threat
- DUALS(2)
- Vars
- R(e);CHECK,OGATE,XS(H)::QAB(C),XR(e)
- Q(c);XQ(C)::P(B)
- Q(c);N_GUARD,XR(F)::QAB(C)
- R(e);XQ(C)::P(B)
- R(e);N_PINS(H),XB(G)::P(B)
- B(b);XQ(C)::P(B)
- B(h);XB(G)::R1(I)
- R(e);S_CUTB(h)::B(G)
- B(h);N_PINS(H)::S(H)
- S(g);N_GUARD::R1(F),XS(g)
- Q(c);::R1(I)
- R(a);::R1(I)
- R(a);P_PINR(I)::P(B)
- R(e);::R1(I)
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