MESON Chess Problem Database
Problem Display
PID: 267671 (8/1p1NK3/2p5/R3NQBb/2pk4/8/1P2n3/1r2R1b1 w - - 0 1)
Janev, Zoran
The Problemist, 1999
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Rxd1#
- 1...Bf3
- 2.Sxf3#
- 1...Bg6
- 2.Sf3#
- 1...Bf7
- 2.Sf3#
- 1...Be8
- 2.Sf3#
- 1...Sc1
- 2.Re4#
- 2.Qe4#
- 2.Qf4#
- 1...Sf4
- 2.Re4#
- 2.Qe4#
- 2.Qxf4#
- 1...c3
- 2.Qd3#
- 1...b5
- 2.Sxc6#
- 1...b6
- 2.Sxc6#
- 1...Rd1
- Tries
- 1.Sg4?
- threat
- 2.Bf6#
- 1...c3
- 2.Ra4#
- 1...Bh2
- 2.Be3#
- 1...Bxg4!
- threat
- 1.Sc5?
- threat
- 2.Se6#
- 2.Qe4#
- 1...Kd5
- 2.Sf3#
- 2.Qe4#
- 1...b5
- 2.Sxc6#
- 1...Bf3
- 2.Se6#
- 2.Sxf3#
- 1...Bg6
- 2.Se6#
- 2.Sf3#
- 1...Bf7
- 2.Sf3#
- 2.Qe4#
- 1...Sc3
- 2.Se6#
- 1...Sg3
- 2.Se6#
- 2.Qd7#
- 1...Sf4
- 2.Qe4#
- 1...Rxb2!
- threat
- 1.Bf6?
- threat
- 2.Sg4#
- 1...Ke3
- 2.Sxc4#
- 1...Bg4
- 2.Sxg4#
- 1...c3
- 2.Qd3#
- 1...Bh2!
- threat
- 1.Rxe2?
- threat
- 2.Rd2#
- 2.Re4#
- 2.Qe4#
- 2.Qf4#
- 1...Bxe2
- 2.Qf4#
- 1...c5
- 2.Rd2#
- 2.Qe4#
- 1...b5
- 2.Sxc6#
- 2.Rd2#
- 2.Qe4#
- 1...Rd1
- 2.Re4#
- 2.Qe4#
- 2.Qf4#
- 1...Re1
- 2.Rd2#
- 2.Qe4#
- 2.Qf4#
- 1...Rf1
- 2.Rd2#
- 2.Re4#
- 2.Qe4#
- 1...Bh2
- 2.Be3#
- 2.Rd2#
- 2.Re4#
- 2.Qe4#
- 2.Qf2#
- 1...Be3
- 2.Bxe3#
- 1...Bf3
- 2.Sxf3#
- 2.Rd2#
- 1...Bg6
- 2.Sf3#
- 2.Rd2#
- 2.Re4#
- 1...c3
- 2.Re4#
- 2.Qd3#
- 2.Qe4#
- 2.Qf4#
- 1...Rxb2!
- threat
- 1.Rd5+?
- 1...Kxd5
- 2.Sf3#
- 1...cxd5!
- 1...Kxd5
- 1.Qg4+?
- 1...Sf4
- 2.Qxg1#
- 2.Qxf4#
- 1...Bxg4!
- 1...Sf4
- 1.Qf2+?
- 1...Ke4
- 2.Sf6#
- 2.Qf4#
- 1...Bxf2!
- 1...Ke4
- 1.Sg4?
- Keys
- 1.Ra4!
- threat
- 2.Qd3#
- 1...Kd5
- 2.Sf3#
- 1...Rd1
- 2.Rxd1#
- 1...Bg6
- 2.Sf3#
- 1...Sc1
- 2.Qe4#
- 1...Sf4
- 2.Qe4#
- threat
- 1.Ra4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 6
- Sets
- R(a);N_GUARD::R(A),XR(a)
- B(f);N_GUARD::S(D),XB(f)
- B(f);N_GUARD::S(D)
- P(d);N_GUARD::QAR1(E)
- P(h);N_GUARD::S(D),XP(g)
- Tries
- Try
- S(D);
- Threat
- B(F)
- Vars
- P(d);OGATEB::R(C)
- B(b);N_GUARD::B(F)
- Refutation
- B(f);XS(D)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- P(h);N_GUARD::S(D),XP(g)
- S(c);::S(G)
- S(c);::QAR1(E)
- Refutation
- R(a);XP(B)
- Try
- B(F);
- Threat
- B(F)+S(D)
- Vars
- K(e);N_GUARD,P_SPINS(c),S_FLIGHT::S(D),XP(d)
- B(f);::B(F)+S(D),XB(f)
- P(d);N_GUARD::QAR1(E)
- Refutation
- B(b);
- Try
- R(A);XS(c)
- Threat
- DUALS(4)
- Vars
- B(f);XR(A)::QAR2(E)
- B(b);N_GUARD::B(F),XB(b)
- Refutation
- R(a);XP(B)
- Try
- R(C);CHECK
- Vars
- K(e);P-FLIGHT,XR(C)::QAR(E)+S(D)
- Refutation
- P(g);XR(C)
- Try
- Q(E);CHECK
- Refutation
- B(f);XQ(E)
- Try
- Q(E);CHECK
- Refutation
- B(b);XQ(E)
- Try
- Actual
- R(C);P_PINP(d)
- Threat
- QAR1(E)
- Vars
- K(e);N_SPINP(d),P-FLIGHT,S_CUTB(f)::QAR(E)+S(D)
- R(a);N_GUARD::R(A),XR(a)
- B(f);N_GUARD::S(D)
- S(c);::QAR1(E)
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