MESON Chess Problem Database

Problem Display
PID: 11356 (1K1Bk2r/3R1p2/2Np4/1B4pQ/3P4/8/b5R1/4r3 w k - 0 1)

Richardson, JE

Chess, 1938

1K1Bk2r/3R1p2/2Np4/1B4pQ/3P4/8/b5R1/4r3

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kf8
      • 2.Qxh8#
    • 1...Re6
      • 2.Qxf7#
    • 1...Bb1
      • 2.Qxf7#
    • 1...d5
      • 2.Qxf7#
    • 1...0-0
      • 2.Rxg5#
  • Tries
    • 1.Bf6?
      • threat
        • 2.Rd8#
      • 1...Kxd7+
        • 2.Sd8#
      • 1...Kf8
        • 2.Qxh8#
      • 1...0-0+!
    • 1.Re7+?
      • 1...Kf8
        • 2.Qxh8#
      • 1...Rxe7!
  • Keys
    • 1.Bxg5!
      • threat
        • 2.Rd8#
      • 1...Kxd7+
        • 2.Sd8#
      • 1...0-0+
        • 2.Bd8#
      • 1...Kf8
        • 2.Qxh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • K(f);N_SPINP(e),P-FLIGHT::QAR2(D),XR(g)
    • R(a);S_CUTB(b)::QAB1(D),XP(e)
    • B(b);N_GUARD::QAB1(D),XP(e)
    • P(d);S_CUTB(b)::QAB1(D),XP(e)
    • K(f);0-0,N_SPINP(e),OGATEB,P_PINB(H),P_SPINP(c)::R(A),XP(c)
  • Tries
    • Try
      • B(H);
      • Threat
        • R1(F)
      • Vars
        • K(f);CHECK,N_SPINP(e),S_FLIGHT,XR(F)::B(C)+S(E)
        • K(f);N_SPINP(e),P-FLIGHT::QAR2(D),XR(g)
      • Refutation
        • K(f);0-0,CHECK,N_SPINP(e),P_SPINP(c)
    • Try
      • R(F);CHECK
      • Vars
        • K(f);N_SPINP(e),P-FLIGHT::QAR2(D),XR(g)
      • Refutation
        • R(a);XR(F)
  • Actual
    • B(H);XP(c)
    • Threat
      • R1(F)
    • Vars
      • K(f);CHECK,N_SPINP(e),S_FLIGHT,XR(F)::B(C)+S(E)
      • K(f);0-0,CHECK,N_SPINP(e),OGATEB::R(A)+B(H)
      • K(f);N_SPINP(e),P-FLIGHT::QAR2(D),XR(g)
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