MESON Chess Problem Database
Problem Display
PID: 214390 (B7/b2P1p2/nB1n4/Q1p1P3/R1Pk1K2/3N2R1/bPrpPP2/Nq6 w - - 0 1)
Haring, Jacobus
The Problemist, 1987
#2
14 + 10
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Sxc2#
- 1...Qf1
- 2.Sxc2#
- 1...Qg1
- 2.Sxc2#
- 1...Qh1
- 2.Sxc2#
- 1...Rc3
- 2.Qxc3#
- 2.bxc3#
- 1...Rxc4
- 2.Qc3#
- 1...Bb3
- 2.Sxb3#
- 1...Bxc4
- 2.Sb3#
- 1...Sb4
- 2.Qxc5#
- 1...Sc7
- 2.Qxc5#
- 1...Sb8
- 2.Qxc5#
- 1...Sxc4
- 2.d8Q#
- 2.d8R#
- 1...Qe1
- Tries
- 1.Se1?
- threat
- 2.Sf3#
- 2.Rd3#
- 2.e3#
- 1...Qxe1
- 2.Sxc2#
- 2.Rd3#
- 1...Rxb2
- 2.Sf3#
- 2.Qc3#
- 2.e3#
- 1...Rxc4
- 2.Sf3#
- 2.Qc3#
- 2.e3#
- 1...dxe1Q
- 2.Rd3#
- 1...dxe1B
- 2.Rd3#
- 1...dxe1R
- 2.Rd3#
- 1...Sb4
- 2.Qxc5#
- 1...d1Q
- 2.Sf3#
- 2.e3#
- 1...d1S
- 2.Sf3#
- 2.Rd3#
- 1...d1R
- 2.Sf3#
- 2.e3#
- 1...Rc1
- 2.Sf3#
- 2.e3#
- 1...Rc3
- 2.Qxc3#
- 2.bxc3#
- 1...Sf5
- 2.Sf3#
- 2.Rd3#
- 1...dxe1S!
- threat
- 1.Sxc5?
- threat
- 2.Scb3#
- 2.Se6#
- 2.Rd3#
- 2.e3#
- 1...Rxb2
- 2.Scb3#
- 2.Se6#
- 2.Qc3#
- 2.e3#
- 1...Rxc4
- 2.Scb3#
- 2.Se6#
- 2.Qc3#
- 2.e3#
- 1...Bxb6
- 2.Rd3#
- 2.e3#
- 1...Sxc5
- 2.Rd3#
- 2.Qxc5#
- 1...d1Q
- 2.Scb3#
- 2.Se6#
- 2.e3#
- 1...d1S
- 2.Scb3#
- 2.Se6#
- 2.Rd3#
- 1...d1R
- 2.Scb3#
- 2.Se6#
- 2.e3#
- 1...Qe1
- 2.Sxc2#
- 2.Scb3#
- 2.Se6#
- 2.Rd3#
- 1...Rc1
- 2.Scb3#
- 2.Se6#
- 2.e3#
- 1...Rc3
- 2.Scb3#
- 2.Se6#
- 2.Qxc3#
- 2.bxc3#
- 1...Bb3
- 2.Saxb3#
- 2.Scxb3#
- 2.Se6#
- 2.Rd3#
- 2.e3#
- 1...Sf5
- 2.Scb3#
- 2.Se6#
- 2.Rd3#
- 1...Sb4!
- threat
- 1.d8Q?
- threat
- 2.Qxd6#
- 1...Sb4
- 2.Qxc5#
- 1...Qh1
- 2.Sxc2#
- 1...Sc7
- 2.Qxc5#
- 1...Bb8!
- threat
- 1.d8S?
- threat
- 2.Sc6#
- 1...Rxc4
- 2.Qc3#
- 1...Bxc4
- 2.Sb3#
- 1...Sb4
- 2.Qxc5#
- 1...Qh1
- 2.Sxc2#
- 1...Sb8
- 2.Qxc5#
- 1...Sxc4!
- threat
- 1.d8R?
- threat
- 2.Rxd6#
- 1...Sb4
- 2.Qxc5#
- 1...Qh1
- 2.Sxc2#
- 1...Sc7
- 2.Qxc5#
- 1...Bb8!
- threat
- 1.Se1?
- Keys
- 1.Sb4!
- threat
- 2.Sc6#
- 1...Kxc4
- 2.Sxa6#
- 1...Rxc4
- 2.e3#
- 1...Bxc4
- 2.e3#
- 1...Sxb4
- 2.Qxc5#
- 1...Sxc4
- 2.Rd3#
- 1...Qh1
- 2.Sbxc2#
- 1...Sb8
- 2.Qxc5#
- threat
- 1.Sb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- Q(a);N_GUARD::S(A),XR(c)
- Q(a);N_GUARD,P_PINP(D)::S(A),XR(c)
- R(c);N_GUARD,P_SPINR(c),XP(H)::QAB1(J)
- B(b);N_GUARD::S(A),XB(b)
- B(b);N_GUARD,P_SPINB(b),XP(H)::S(A)
- S(g);N_GUARD::QAB1(J),XP(f)
- S(h);P_SPINS(h),XP(H)::P=Q
- Tries
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- P(d);XS(E)::R1(F)
- S(g);N_GUARD::QAB1(J),XP(f)
- Refutation
- P(d);XS(E)
- Try
- S(E);XP(f)
- Threat
- DUALS(4)
- Refutation
- S(g);
- Try
- P(M);P_PINS(h)
- Threat
- QAR2(M),XS(h)
- Vars
- S(g);N_GUARD::QAB1(J),XP(f)
- Q(a);N_GUARD::S(A),XR(c)
- Refutation
- B(i);
- Try
- P(M);
- Threat
- S(M)
- Vars
- R(c);N_GUARD,P_SPINR(c),XP(H)::QAB1(J)
- B(b);N_GUARD,P_SPINB(b),XP(H)::S(A)
- S(g);N_GUARD::QAB1(J),XP(f)
- Q(a);N_GUARD::S(A),XR(c)
- Refutation
- S(h);P_SPINS(h),XP(H)
- Try
- P(M);P_PINS(h)
- Threat
- R(M),XS(h)
- Vars
- S(g);N_GUARD::QAB1(J),XP(f)
- Q(a);N_GUARD::S(A),XR(c)
- Refutation
- B(i);
- Try
- Actual
- S(E);
- Threat
- S(E)
- Vars
- K(e);N_SPINP(f),P-FLIGHT,XP(H)::R(G)+S(E),XS(g)
- R(c);SBLOCK,XP(H)::P(C)
- B(b);SBLOCK,XP(H)::P(C)
- S(g);N_GUARD,XS(E)::QAB1(J),XP(f)
- S(h);SBLOCK,XP(H)::R1(F)
- Q(a);N_GUARD::S(E),XR(c)
- S(g);N_GUARD::QAB1(J),XP(f)
Developed and maintained by Brian Stephenson.
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CSS/Javascript (jQuery, Bootstrap & DataTables).