MESON Chess Problem Database
Problem Display
PID: 185086 (2K5/1pNB4/pp1kP1N1/8/3r1r2/6n1/2R1PQ1b/7b w - - 0 1)
Lipton, Michael
British Chess Magazine, 2018
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Qxf4#
- 1...Rd2
- 2.Qxf4#
- 1...Rd3
- 2.Qxf4#
- 1...Rde4
- 2.Qxb6#
- 1...Rd5
- 2.Se8#
- 2.Qxb6#
- 1...Rf3
- 2.Qxd4#
- 1...Rfe4
- 2.Qf8#
- 1...Rg4
- 2.Qf8#
- 1...Rh4
- 2.Qf8#
- 1...Rf8+
- 2.Qxf8#
- 1...Be4
- 2.Qxf4#
- 1...Bd5
- 2.Se8#
- 1...Se4
- 2.Qxd4#
- 1...Rd1
- Tries
- 1.Qxd4+?
- 1...Bd5
- 2.Se8#
- 2.Qe5#
- 2.Qxf4#
- 2.Qxd5#
- 1...Rxd4!
- 1...Bd5
- 1.e7?
- threat
- 2.e8S#
- 1...Rf8+
- 2.exf8Q#
- 2.exf8B#
- 1...Rde4
- 2.Qxb6#
- 1...Rfe4!
- threat
- 1.Qxd4+?
- Keys
- 1.e4!
- threat
- 2.Se8#
- 2.Qxd4#
- 2.Qxf4#
- 2.e5#
- 1...Rf8+
- 2.Qxf8#
- 1...Rdxe4
- 2.Qxb6#
- 1...Rxf2
- 2.Se8#
- 2.e5#
- 1...Rfxe4
- 2.Qf8#
- 1...Bxe4
- 2.Qxf4#
- 1...Sxe4
- 2.Qxd4#
- 1...Rd1
- 2.Se8#
- 2.Qxb6#
- 2.Qxf4#
- 2.e5#
- 1...Rd2
- 2.Se8#
- 2.Rxd2#
- 2.Qxb6#
- 2.Qxd2#
- 2.Qxf4#
- 2.e5#
- 1...Rd3
- 2.Se8#
- 2.Qxb6#
- 2.Qxf4#
- 2.e5#
- 1...Ra4
- 2.Se8#
- 2.Qxb6#
- 2.Qxf4#
- 2.e5#
- 1...Rb4
- 2.Se8#
- 2.Qxf4#
- 2.e5#
- 1...Rc4
- 2.e5#
- 1...Rd5
- 2.Se8#
- 2.Qxb6#
- 1...Rf3
- 2.Se8#
- 2.Qxd4#
- 2.e5#
- 1...Rg4
- 2.Se8#
- 2.Qxd4#
- 2.Qf8#
- 2.e5#
- 1...Rh4
- 2.Se8#
- 2.Qxd4#
- 2.Qf8#
- 2.e5#
- 1...Rf5
- 2.Se8#
- 1...Rf6
- 2.Se8#
- 2.Qxd4#
- 2.e5#
- 1...Rf7
- 2.Se8#
- 2.Qxd4#
- 2.e5#
- 1...Bf3
- 2.Se8#
- 2.Qxd4#
- 2.e5#
- 1...Bg1
- 2.Se8#
- 2.Qxf4#
- 2.e5#
- 1...Sf1
- 2.Se8#
- 2.Qxd4#
- 2.e5#
- 1...Se2
- 2.Se8#
- 2.e5#
- 1...Sf5
- 2.Se8#
- 2.e5#
- 1...Sh5
- 2.Se8#
- 2.Qxd4#
- 2.e5#
- threat
- 1.e4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- R(d);N_GUARD::QAB(C),XR(e)
- R(d);OGATE::QAR2(C),XP(g)
- R(e);N_GUARD,S_CUTB(a)::QAR2(C),XR(d)
- R(e);OGATE::QAB(C)
- R(e);CHECK,OGATE::QAB(C),XR(e)
- B(a);S_CUTR(d)::QAB(C),XR(e)
- B(a);SBLOCK::S(F)
- S(c);S_CUTB(a),S_CUTR(e)::QAR2(C),XR(d)
- Tries
- Try
- Q(C);CHECK,XR(d)
- Refutation
- R(e);XQ(C)
- Try
- P(D);
- Threat
- P=S
- Vars
- R(e);CHECK,OGATE::PXR(e)=Q
- R(d);OGATE::QAR2(C),XP(g)
- Refutation
- R(e);
- Try
- Actual
- P(B);
- Threat
- DUALS(4)
- Vars
- R(e);CHECK,OGATE::QAB(C),XR(e)
- R(d);OGATE,XP(B)::QAR2(C),XP(g)
- R(e);OGATE,XP(B)::QAB(C)
- B(a);XP(B)::QAB(C),XR(e)
- S(c);XP(B)::QAR2(C),XR(d)
- R(d);P_PINS(F)::P(B)
- R(e);::S(F)
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