MESON Chess Problem Database
Problem Display
PID: 67844 (2N5/2p1r3/1N1b1Q1R/1Bkp4/P3r1p1/2P1p3/1P6/7K w - - 0 1)
Spawton, C
Chess, 1948
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Rd4
- 2.Qxd4#
- 1...R4e5
- 2.b4#
- 1...R4e6
- 2.Qd4#
- 2.b4#
- 1...R7e5
- 2.Sd7#
- 1...R7e6
- 2.Sd7#
- 1...Rd7
- 2.Sxd7#
- 1...Re8
- 2.Sd7#
- 1...Bh2
- 2.Qc6#
- 1...Bg3
- 2.Qc6#
- 1...Bf4
- 2.Qc6#
- 1...Be5
- 2.Qc6#
- 1...d4
- 2.b4#
- 1...cxb6
- 2.Qxd6#
- 1...c6
- 2.Qxd6#
- 1...Rd4
- Tries
- 1.Rh5?
- threat
- 2.Rxd5#
- 1...cxb6
- 2.Qxd6#
- 1...Rd4
- 2.Qxd4#
- 1...R4e5
- 2.b4#
- 1...R7e5
- 2.Sd7#
- 1...Be5
- 2.Qc6#
- 1...c6
- 2.Qxd6#
- 1...Rh7!
- threat
- 1.Qxe7?
- threat
- 2.Sd7#
- 1...Rxe7
- 2.b4#
- 1...cxb6
- 2.Qxd6#
- 1...d4
- 2.b4#
- 1...Rxa4!
- threat
- 1.Qe6?
- threat
- 2.Qxd5#
- 1...R4xe6
- 2.b4#
- 1...R7xe6
- 2.Sd7#
- 1...cxb6
- 2.Qxd6#
- 1...Re5
- 2.b4#
- 1...d4
- 2.Qc4#
- 2.Qd5#
- 2.b4#
- 1...c6
- 2.Qxd6#
- 1...Rd4!
- threat
- 1.Rh5?
- Keys
- 1.Qe5!
- threat
- 2.Qxd5#
- 1...R4xe5
- 2.b4#
- 1...R7xe5
- 2.Sd7#
- 1...Bxe5
- 2.Rc6#
- 1...cxb6
- 2.Qxd6#
- 1...Rd4
- 2.Qxd4#
- 1...c6
- 2.Qxd6#
- threat
- 1.Qe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- R(b);N_GUARD::QAB1(G),XR(b)
- R(b);N_GUARD::P(B)
- R(h);N_GUARD::S(F)
- R(h);N_GUARD::S(F),XR(h)
- B(f);OGATE::QAR1(G)
- P(e);S_CUTR(b)::P(B)
- P(g);N_GUARD,XS(F)::QAB1(G),XB(f)
- P(g);N_GUARD::QAB1(G),XB(f)
- Tries
- Try
- R(H);P_PINP(e)
- Threat
- R1(H),XP(e)
- Vars
- P(g);N_GUARD,XS(F)::QAB1(G),XB(f)
- R(b);N_GUARD::QAB1(G),XR(b)
- R(b);N_GUARD,N_SPINP(e)::P(B)
- R(h);N_GUARD,N_SPINP(e)::S(F)
- B(f);N_SPINP(e),OGATE::QAR1(G)
- P(g);N_GUARD::QAB1(G),XB(f)
- Refutation
- R(h);P_PINR(H)
- Try
- Q(G);P_PINB(f),XR(h)
- Threat
- S(F)
- Vars
- R(b);N_GUARD,N_SPINB(f),XQ(G)::P(B)
- P(g);N_GUARD,XS(F)::QAB1(G),XB(f)
- P(e);S_CUTR(b)::P(B)
- Refutation
- R(b);XP(D)
- Try
- Q(G);
- Threat
- QAR1(G),XP(e)
- Vars
- R(b);N_GUARD,XQ(G)::P(B)
- R(h);N_GUARD,XQ(G)::S(F)
- P(g);N_GUARD,XS(F)::QAB1(G),XB(f)
- R(b);N_GUARD::P(B)
- P(g);N_GUARD::QAB1(G),XB(f)
- Refutation
- R(b);
- Try
- Actual
- Q(G);P_PINP(e)
- Threat
- QAR1(G),XP(e)
- Vars
- R(b);N_GUARD,N_SPINP(e),XQ(G)::P(B)
- R(h);N_GUARD,N_SPINP(e),XQ(G)::S(F)
- B(f);N_SPINP(e),OGATE,XQ(G)::R1(H)
- P(g);N_GUARD,XS(F)::QAB1(G),XB(f)
- R(b);N_GUARD::QAB1(G),XR(b)
- P(g);N_GUARD::QAB1(G),XB(f)
Developed and maintained by Brian Stephenson.
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