MESON Chess Problem Database

Problem Display
PID: 9354 (3KB3/1b4p1/3pN3/p2k4/4rR2/P2N4/1PP5/3Q4 w - - 0 1)

Heathcote, Godfrey

3rd Prize, Hampstead and Highgate Express, 1901

3KB3/1b4p1/3pN3/p2k4/4rR2/P2N4/1PP5/3Q4

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.Bf7#
    • 1...Re1
      • 2.Sc7#
    • 1...Re2
      • 2.Sc7#
    • 1...Re3
      • 2.Sc7#
    • 1...Ra4
      • 2.Sc7#
    • 1...Rb4
      • 2.Sc7#
    • 1...Re5
      • 2.Sdc5#
      • 2.Sc7#
    • 1...Rxe6
      • 2.c4#
  • Tries
    • 1.Sdc5+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Rd4
        • 2.Qxd4#
      • 1...Ke5!
    • 1.Rf5+?
      • 1...Kc4
        • 2.Bb5#
      • 1...Kxe6
        • 2.Bd7#
      • 1...Re5!
    • 1.Qf3?
      • threat
        • 2.Qxe4#
      • 1...Kxe6
        • 2.Bf7#
      • 1...Kc4!
    • 1.Qh5+?
      • 1...Kc4
        • 2.Bb5#
        • 2.Qb5#
      • 1...Kxe6
        • 2.Bd7#
        • 2.Bf7#
        • 2.Qf7#
        • 2.Qf5#
      • 1...Re5
        • 2.Sc7#
      • 1...g5!
    • 1.Qh1?
      • threat
        • 2.Qxe4#
      • 1...Kxe6
        • 2.Bf7#
      • 1...Kc4!
  • Keys
    • 1.Qe2!
      • threat
        • 2.Qxe4#
      • 1...Kc4
        • 2.Sb4#
      • 1...Kxe6
        • 2.Bf7#
      • 1...Rxe2
        • 2.Sc7#
      • 1...Rxf4
        • 2.Sdxf4#
      • 1...Rxe6
        • 2.c4#
      • 1...Re3
        • 2.Sc7#
      • 1...Ra4
        • 2.Sc7#
      • 1...Rb4
        • 2.Sc7#
      • 1...Rc4
        • 2.Rf5#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Re5
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • K(c);OGATEB,S_FLIGHT,XS(G)::B(I)
    • R(a);::S(G)
    • R(a);N_GUARD,SBLOCK,XS(G)::P(C)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(c);P_SPINR(a),S_FLIGHT::QAB1(A)
        • R(a);N_GUARD,P_SPINR(a)::QAR1(A),XR(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(F);CHECK
      • Vars
        • K(c);S_FLIGHT::B(I)
        • K(c);S_FLIGHT,XS(G)::B(I)
      • Refutation
        • R(a);P_SPINR(a)
    • Try
      • Q(A);P_PINR(a)
      • Threat
        • QAB1(A),XR(a)
      • Vars
        • K(c);N_SPINR(a),OGATEB,S_FLIGHT,XS(G)::B(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • R(a);P_SPINR(a)::S(G)
      • Refutation
        • P(f);P_SPINP(f)
    • Try
      • Q(A);P_PINR(a)
      • Threat
        • QAB1(A),XR(a)
      • Vars
        • K(c);N_SPINR(a),OGATEB,S_FLIGHT,XS(G)::B(I)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAB1(A),XR(a)
    • Vars
      • K(c);P_SPINR(a),S_FLIGHT::QAB(A)+S(E)
      • K(c);OGATEB,P_SPINR(a),S_FLIGHT,XS(G)::B(I)
      • R(a);XQ(A)::S(G)
      • R(a);XR(F)::S(E),XR(a)
      • R(a);N_GUARD,XS(G)::P(C)
      • R(a);::S(G)
      • R(a);N_GUARD,SBLOCK::R(F)
      • R(a);OGATE::R1(F),XR(a)
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