MESON Chess Problem Database

Problem Display
PID: 54406 (n3BBQ1/KP2r3/1RbkP1p1/4p1r1/1pPb2Nn/3R4/8/8 w - - 0 1)

Barrow, John Hugh

Grantham Journal, 1926

n3BBQ1/KP2r3/1RbkP1p1/4p1r1/1pPb2Nn/3R4/8/8

#2

10 + 10

5257 Chess Problems by J H Barrow 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Rxc6#
    • 1...Kc7
      • 2.b8Q#
  • Tries
    • 1.Kxa8?
      • threat
        • 2.Rxc6#
      • 1...Kc5
        • 2.Rxc6#
      • 1...Kc7!
    • 1.Kb8?
      • threat
        • 2.Rxc6#
      • 1...Kc5
        • 2.Rxc6#
      • 1...Sxb6!
    • 1.Bxe7+?
      • 1...Kc7
        • 2.b8Q#
      • 1...Kxe7!
    • 1.Rxd4+?
      • 1...Kc7
        • 2.Rxc6#
        • 2.b8Q#
      • 1...exd4
        • 2.Rxc6#
      • 1...Kc5!
    • 1.Qf7?
      • threat
        • 2.Qxe7#
      • 1...Kc5
        • 2.Rxc6#
      • 1...Kc7
        • 2.b8Q#
      • 1...Sf5!
  • Keys
    • 1.Qg7!
      • threat
        • 2.Qxe7#
      • 1...Kc5
        • 2.Rxc6#
      • 1...Kxe6
        • 2.Qf6#
      • 1...Kc7
        • 2.b8Q#
      • 1...Sf5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(g);N_PINR(D),N_SPINB(b),S_FLIGHT::R1(D),XB(f)
    • K(g);N_PINP(G),N_SPINB(b),N_SPINR(i),S_FLIGHT::P=Q
  • Tries
    • Try
      • K(F);N_SPINR(D),P-FLIGHT,XS(j)
      • Threat
        • R1(D),XB(f)
      • Vars
        • K(g);N_SPINB(b),S_FLIGHT::R1(D),XB(f)
      • Refutation
        • K(g);N_SPINB(b),N_SPINR(i),S_FLIGHT
    • Try
      • K(F);N_SPINP(G),N_SPINR(D),S_FLIGHT
      • Threat
        • R1(D),XB(f)
      • Vars
        • K(g);N_SPINB(b),S_FLIGHT::R1(D),XB(f)
      • Refutation
        • S(j);XR(D)
    • Try
      • B(I);CHECK,N_SPINP(G),XR(i)
      • Vars
        • K(g);N_SPINB(b),S_FLIGHT::P=Q
      • Refutation
        • K(g);N_SPINB(b),S_FLIGHT,XB(I)
    • Try
      • R(A);CHECK,N_SPINR(D),P_PINB(f),XB(b)
      • Vars
        • P(d);XR(A)::R1(D),XB(f)
      • Refutation
        • K(g);N_SPINB(f),S_FLIGHT
    • Try
      • Q(J);
      • Threat
        • QAB1(J),XR(i)
      • Vars
        • K(g);N_PINR(D),N_SPINB(b),S_FLIGHT::R1(D),XB(f)
        • K(g);N_PINP(G),N_SPINB(b),S_FLIGHT::P=Q
      • Refutation
        • S(c);
  • Actual
    • Q(J);
    • Threat
      • QAB1(J),XR(i)
    • Vars
      • K(g);N_PINR(D),N_SPINB(b),S_FLIGHT::R1(D),XB(f)
      • K(g);N_SPINB(b),N_SPINR(i),OGATEB,P-FLIGHT,P_SPINB(f),XP(E)::QAR1(J)
      • K(g);N_PINP(G),N_SPINB(b),S_FLIGHT::P=Q
      • S(c);S_CUTR(e)::QAB1(J),XP(d)
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