MESON Chess Problem Database

Problem Display
PID: 185715 (1q1R4/r2pN1K1/n3bPp1/1Qp5/3kpB2/3P2R1/2nP4/5B2 w - - 0 1)

Stanley, Cyril (Kipping, Cyril Stanley)

Chess, 1957

1q1R4/r2pN1K1/n3bPp1/1Qp5/3kpB2/3P2R1/2nP4/5B2

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf4
      • 2.Qb2#
    • 1...Qe5
      • 2.Qb2#
    • 1...Qd6
      • 2.Qb2#
    • 1...Qc7
      • 2.Qb2#
    • 1...Qa8
      • 2.Qb2#
    • 1...Qc8
      • 2.Qb2#
    • 1...Qxd8
      • 2.Qb2#
    • 1...Bh3
      • 2.Qc4#
    • 1...Bc4
      • 2.Qxc4#
    • 1...Bg4
      • 2.Qc4#
    • 1...Bf5
      • 2.Qc4#
    • 1...exd3
      • 2.Qxd3#
    • 1...c4
      • 2.Sc6#
    • 1...d5
      • 2.Qc4#
  • Tries
    • 1.Be5+?
      • 1...Qxe5
        • 2.Qb2#
      • 1...Kxe5!
    • 1.Rxd7+?
      • 1...Qd6
        • 2.Qb2#
      • 1...Bd5
        • 2.Sc6#
        • 2.Rxd5#
        • 2.Qc4#
      • 1...Bxd7
        • 2.Qc4#
      • 1...Rxd7!
  • Keys
    • 1.Rg5!
      • threat
        • 2.Sc6#
      • 1...Qxb5
        • 2.Be5#
      • 1...Qxd8
        • 2.Be5#
        • 2.Qb2#
      • 1...exd3
        • 2.Qxd3#
      • 1...Qb6
        • 2.Be5#
      • 1...Qe5
        • 2.Bxe5#
        • 2.Qb2#
      • 1...Qd6
        • 2.Qb2#
      • 1...Qc7
        • 2.Qb2#
      • 1...Qb7
        • 2.Be5#
      • 1...Qa8
        • 2.Be5#
        • 2.Qb2#
      • 1...Qc8
        • 2.Be5#
        • 2.Qb2#
      • 1...Rc7
        • 2.Be5#
      • 1...Bd5
        • 2.Rxd5#
      • 1...Bf5
        • 2.Qc4#
      • 1...Scb4
        • 2.Be3#
      • 1...Sab4
        • 2.Qxc5#
      • 1...d5
        • 2.Qc4#
      • 1...d6
        • 2.Be5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 9
  • Sets
    • Q(j);N_GUARD,XB(E)::QAB(F)
    • Q(j);N_GUARD,P_PINP(G)::QAB(F)
    • Q(j);N_GUARD,N_SPINP(i)::QAB(F)
    • Q(j);N_GUARD::QAB(F)
    • Q(j);N_GUARD,N_SPINP(i),XR(J)::QAB(F)
    • B(f);N_GUARD::QAR1(F)
    • B(f);N_GUARD::QAR1(F),XB(f)
    • P(c);OGATE,XP(C)::QAR1(F),XP(c)
    • P(d);::S(H)
    • P(i);P_PINS(H),S_CUTB(f)::QAR1(F)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • Q(j);P_PINP(G),SBLOCK,XB(E)::QAB(F)
      • Refutation
        • K(b);N_SPINP(i),P_SPINP(d),S_FLIGHT,XB(E)
    • Try
      • R(J);CHECK,XP(i)
      • Vars
        • Q(j);P_SPINQ(j)::QAB(F)
        • B(f);XR(J)::QAR1(F)
      • Refutation
        • R(h);P_PINS(H),XR(J)
  • Actual
    • R(D);
    • Threat
      • S(H)
    • Vars
      • Q(j);N_GUARD,XQ(F)::B(E)
      • P(c);OGATE,XP(C)::QAR1(F),XP(c)
      • Q(j);N_GUARD::B(E)
      • Q(j);N_GUARD,N_SPINP(i)::QAB(F)
      • Q(j);N_GUARD::QAB(F)
      • R(h);S_CUTQ(j)::B(E)
      • B(f);N_GUARD,N_SPINP(i)::R1(D),XB(f)
      • B(f);N_GUARD::QAR1(F)
      • S(a);N_GUARD::B(E)
      • S(e);N_GUARD::QAB1(F),XP(d)
      • P(i);P_PINS(H),S_CUTB(f)::QAR1(F)
      • P(i);P_PINS(H),S_CUTQ(j)::B(E)
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