MESON Chess Problem Database
Problem Display
PID: 187063 (8/5rN1/2p4K/2QN1PR1/r3k1p1/2P1p1B1/4Pb1n/8 w - - 0 1)
Barnes, Barry Peter
The Problemist Supplement, 2018
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qd4#
- 2.Qc4#
- 1...Ra2
- 2.Qd4#
- 2.Qc4#
- 1...Ra3
- 2.Qd4#
- 2.Qc4#
- 1...Rc4
- 2.Qxc4#
- 1...Rd4
- 2.Qxd4#
- 1...Ra5
- 2.Qd4#
- 2.Qc4#
- 1...Ra6
- 2.Qd4#
- 2.Qc4#
- 1...Raa7
- 2.Qd4#
- 2.Qc4#
- 1...Ra8
- 2.Qd4#
- 2.Qc4#
- 1...Rf6+
- 2.Sxf6#
- 1...Rfa7
- 2.Sf6#
- 1...Rb7
- 2.Sf6#
- 1...Rc7
- 2.Sf6#
- 1...Rd7
- 2.Sf6#
- 1...Re7
- 2.Sf6#
- 1...Rxg7
- 2.Sf6#
- 1...Sf1
- 2.Rxg4#
- 1...Sf3
- 2.Rxg4#
- 1...Ra1
- Tries
- 1.Sb4?
- threat
- 2.Qd4#
- 2.Qc4#
- 2.Qe5#
- 2.Qxc6#
- 1...Rxb4
- 2.Qe5#
- 2.Qxc6#
- 1...Rxf5
- 2.Qd4#
- 2.Qc4#
- 2.Qxf5#
- 1...Bxg3
- 2.Qd4#
- 1...Ra5
- 2.Qd4#
- 2.Qc4#
- 1...Ra6
- 2.Qd4#
- 2.Qc4#
- 2.Qe5#
- 1...Rc7
- 2.Qd4#
- 2.Qc4#
- 2.Qe5#
- 1...Rd7
- 2.Qe5#
- 1...Re7
- 2.Qd4#
- 2.Qxe7#
- 2.Qc4#
- 2.Qxc6#
- 1...Sf3
- 2.Rxg4#
- 2.Qxc6#
- 1...Rf6+!
- threat
- 1.Qb4+?
- 1...Kxd5
- 2.f6#
- 1...Rxb4!
- 1...Kxd5
- 1.Qe7+?
- 1...Rxe7
- 2.Sf6#
- 1...Kxd5!
- 1...Rxe7
- 1.Qxc6?
- threat
- 2.Sb4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Qe6#
- 1...Rf6+
- 2.Sxf6#
- 1...Rxf5
- 2.Sf6#
- 1...Rb4
- 2.Sxb4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Qe6#
- 1...Rc4
- 2.Sf6#
- 2.Qxc4#
- 2.Qe6#
- 1...Rd4
- 2.Sf6#
- 2.Qe6#
- 1...Ra5
- 2.Sf6#
- 2.Qc4#
- 2.Qe6#
- 1...Ra6
- 2.Sb6#
- 2.Sf6#
- 1...Rc7
- 2.Sf6#
- 2.Sxc7#
- 2.Qe6#
- 1...Rd7
- 2.Sf6#
- 2.Qe6#
- 1...Re7
- 2.Sb4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Sxe7#
- 1...Sf3
- 2.Sb4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Rxg4#
- 1...Bxg3!
- threat
- 1.c4?
- threat
- 2.Sc3#
- 1...Rf6+
- 2.Sxf6#
- 1...Rxc4
- 2.Qxc4#
- 1...Bxg3
- 2.Qxe3#
- 1...cxd5
- 2.Qxd5#
- 1...Be1
- 2.Qxe3#
- 1...Ra3!
- threat
- 1.Sb4?
- Keys
- 1.f6!
- threat
- 2.Re5#
- 1...Rxf6+
- 2.Sxf6#
- 1...Bxg3
- 2.Qxe3#
- 1...Re7
- 2.Qxe7#
- 1...Sf3
- 2.Rxg4#
- threat
- 1.f6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- R(d);N_GUARD::QAR2(D),XR(d)
- R(d);N_GUARD::QAR1(D),XR(d)
- R(h);CHECK,N_GUARD::S(E),XR(h)
- R(h);N_GUARD::S(E)
- R(h);N_GUARD,XS(I)::S(E)
- S(b);N_GUARD::R(G),XP(f)
- Tries
- Try
- S(E);
- Threat
- DUALS(4)
- Vars
- B(a);XB(C)::QAR1(D)
- R(h);::QAR1(D)
- Refutation
- R(h);CHECK
- Try
- Q(D);CHECK
- Vars
- K(e);S_FLIGHT,XS(E)::R(G)+P(F)
- Refutation
- R(d);XQ(D)
- Try
- Q(D);CHECK
- Vars
- R(h);XQ(D)::S(E)
- Refutation
- K(e);S_FLIGHT,XS(E)
- Try
- Q(D);XP(g)
- Threat
- DUALS(6)
- Vars
- R(h);CHECK::QAB(D)+S(E),DCHECK,XR(h)
- R(h);XP(F)::QAB(D)+S(E),DCHECK
- Refutation
- B(a);XB(C)
- Try
- P(B);
- Threat
- S(E)
- Vars
- R(h);CHECK,N_GUARD::S(E),XR(h)
- R(d);OGATE,XP(B)::QAR2(D),XR(d)
- B(a);N_GUARD,XB(C)::QAR1(D),XP(c)
- P(g);OGATE,XS(E)::QAB1(D),XP(g)
- B(a);N_GUARD::QAR1(D),XP(c)
- Refutation
- R(d);
- Try
- Actual
- P(F);
- Threat
- R1(G)
- Vars
- R(h);CHECK,XP(F)::S(E),XR(h)
- B(a);N_GUARD,XB(C)::QAR1(D),XP(c)
- R(h);N_GUARD::QAR(D),XR(h)
- S(b);N_GUARD::R(G),XP(f)
Developed and maintained by Brian Stephenson.
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CSS/Javascript (jQuery, Bootstrap & DataTables).