MESON Chess Problem Database
Problem Display
PID: 153993 (8/p2r4/4N1p1/KNR5/2p2B1p/3kp1nR/b2p4/3Q3B w - - 0 1)
Shire, David J
The Problemist Supplement, 2014
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Rxd5#
- 1...Rb7
- 2.Rd5#
- 1...Rc7
- 2.Rd5#
- 1...Re7
- 2.Rd5#
- 1...Rf7
- 2.Rd5#
- 1...Rg7
- 2.Rd5#
- 1...Rh7
- 2.Rd5#
- 1...Sxh1
- 2.Rxe3#
- 1...Se2
- 2.Rxe3#
- 1...Se4
- 2.Rxe3#
- 1...Sh5
- 2.Rxe3#
- 1...e2
- 2.Qxd2#
- 1...c3
- 2.Rxc3#
- 1...Rd5
- Tries
- 1.Be4+?
- 1...Sxe4
- 2.Rxe3#
- 1...Kxe4!
- 1...Sxe4
- 1.Bxe3?
- threat
- 2.Qxd2#
- 1...Kxe3
- 2.Qf3#
- 1...Sf1
- 2.Sf4#
- 1...Se4
- 2.Sf4#
- 1...c3
- 2.Rxc3#
- 1...Sxh1!
- threat
- 1.Bg5?
- threat
- 2.Sf4#
- 1...Sxh1
- 2.Rxe3#
- 1...Rf7
- 2.Rd5#
- 1...Se2
- 2.Rxe3#
- 1...Sh5
- 2.Rxe3#
- 1...e2
- 2.Qxd2#
- 1...Rd4!
- threat
- 1.Re5?
- threat
- 2.Sc5#
- 2.Rxe3#
- 1...Rd5
- 2.Rxe3#
- 2.Rxd5#
- 1...Rc7
- 2.Rxe3#
- 2.Rd5#
- 1...Sf1
- 2.Sc5#
- 2.Be4#
- 1...Se4
- 2.Bxe4#
- 2.Rxe3#
- 1...Sf5
- 2.Sc5#
- 2.Be4#
- 1...e2
- 2.Sc5#
- 2.Be4#
- 2.Re3#
- 2.Qxd2#
- 1...c3!
- threat
- 1.Rf5?
- threat
- 2.Sc5#
- 1...Rd5
- 2.Rxd5#
- 1...Rc7
- 2.Rd5#
- 1...Se4
- 2.Rxe3#
- 1...c3!
- threat
- 1.Rg5?
- threat
- 2.Sc5#
- 1...Rd5
- 2.Rxd5#
- 1...Rc7
- 2.Rd5#
- 1...Se4
- 2.Rxe3#
- 1...c3!
- threat
- 1.Rh5?
- threat
- 2.Sc5#
- 1...Rd5
- 2.Rxd5#
- 1...Rc7
- 2.Rd5#
- 1...Se4
- 2.Rxe3#
- 1...c3!
- threat
- 1.Rc6?
- threat
- 2.Sc5#
- 1...Se4
- 2.Rxe3#
- 1...c3
- 2.Rxc3#
- 1...Rd5!
- threat
- 1.Qb1+?
- 1...Ke2
- 2.Rh2#
- 1...Bxb1!
- 1...Ke2
- 1.Be4+?
- Keys
- 1.Rxc4!
- threat
- 2.Rc3#
- 1...Kxc4
- 2.Qc2#
- 1...Bxc4
- 2.Sc5#
- 1...Sxh1
- 2.Qf1#
- 1...Rc7
- 2.Rd4#
- 1...Se2
- 2.Qc2#
- 1...Se4
- 2.Qf1#
- threat
- 1.Rxc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- R(j);N_GUARD::R(G),XR(j)
- R(j);N_GUARD::R(G)
- S(e);OGATE,XB(B)::R1(C),XP(d)
- S(e);OGATE::R1(C),XP(d)
- P(d);N_GUARD,P_SPINS(e)::QAR1(A),XP(b)
- P(f);OGATE::R1(G),XP(f)
- Tries
- Try
- B(B);CHECK
- Vars
- S(e);OGATE,XB(B)::R1(C),XP(d)
- Refutation
- K(c);N_SPINP(b),S_FLIGHT,XB(B)
- Try
- B(D);XP(d)
- Threat
- QAR1(A),XP(b)
- Vars
- K(c);N_SPINP(b),OGATEB,P-FLIGHT,P_SPINS(e),XB(D)::QAR1(A)
- S(e);::S(H)
- P(f);OGATE::R1(G),XP(f)
- Refutation
- S(e);XB(B)
- Try
- B(D);
- Threat
- S(H)
- Vars
- S(e);OGATE,XB(B)::R1(C),XP(d)
- R(j);N_GUARD::R(G)
- S(e);OGATE::R1(C),XP(d)
- P(d);N_GUARD,P_SPINS(e)::QAR1(A),XP(b)
- Refutation
- R(j);
- Try
- R(G);
- Threat
- DUALS(2)
- Refutation
- P(f);
- Try
- R(G);
- Threat
- S(H)
- Vars
- R(j);N_GUARD,P_PINS(F)::R(G),XR(j)
- R(j);N_GUARD::R(G)
- S(e);OGATE::R1(C),XP(d)
- Refutation
- P(f);
- Try
- R(G);
- Threat
- S(H)
- Vars
- R(j);N_GUARD,P_PINS(F)::R(G),XR(j)
- R(j);N_GUARD::R(G)
- S(e);OGATE::R1(C),XP(d)
- Refutation
- P(f);
- Try
- R(G);
- Threat
- S(H)
- Vars
- R(j);N_GUARD,P_PINS(F)::R(G),XR(j)
- R(j);N_GUARD::R(G)
- S(e);OGATE::R1(C),XP(d)
- Refutation
- P(f);
- Try
- R(G);
- Threat
- S(H)
- Vars
- S(e);OGATE::R1(C),XP(d)
- P(f);OGATE::R1(G),XP(f)
- Refutation
- R(j);P_PINS(F)
- Try
- Q(A);CHECK,N_PINP(b)
- Vars
- K(c);S_FLIGHT::R(C)
- Refutation
- B(a);XQ(A)
- Try
- Actual
- R(G);XP(f)
- Threat
- R1(G)
- Vars
- K(c);N_SPINP(b),S_FLIGHT,XR(G)::QAR2(A)
- B(a);SBLOCK,XR(G)::S(H)
- S(e);N_GUARD,S_CUTP(d),XB(B)::QAB(A)
- R(j);N_GUARD::R1(G)
- S(e);SBLOCK::QAB1(A)
- S(e);N_GUARD,S_CUTP(d)::QAB(A)
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