MESON Chess Problem Database

Problem Display
PID: 57325 (B7/1RN2p2/8/4p3/2ppkp2/rN4RK/2p1pP2/2B1Q3 w - - 0 1)

Jerrard, Ernest Haslam Harvey

Comm., Brisbane Courier, 1918-1919

B7/1RN2p2/8/4p3/2ppkp2/rN4RK/2p1pP2/2B1Q3

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Sd2#
      • 2.Sc5#
      • 2.Ra7#
      • 2.Qxe2#
  • Tries
    • 1.Kg4?
      • threat
        • 2.Sd2#
        • 2.Sc5#
        • 2.Ra7#
        • 2.Qxe2#
      • 1...Rxb3
        • 2.Rbxb3#
        • 2.Rb4#
        • 2.Rb5#
        • 2.Rb6#
      • 1...Rxa8
        • 2.Sd2#
        • 2.Sc5#
        • 2.Qxe2#
      • 1...cxb3
        • 2.Ra7#
        • 2.Qxe2#
      • 1...fxg3
        • 2.Sc5#
        • 2.Qxe2#
      • 1...f3
        • 2.Sc5#
      • 1...Ra5
        • 2.Sd2#
        • 2.Qxe2#
      • 1...Ra6
        • 2.Sd2#
        • 2.Sc5#
        • 2.Qxe2#
      • 1...Ra7
        • 2.Sd2#
        • 2.Sc5#
        • 2.Rxa7#
        • 2.Qxe2#
      • 1...c3
        • 2.Sc5#
        • 2.Ra7#
        • 2.Qxe2#
      • 1...d3
        • 2.Ra7#
        • 2.f3#
      • 1...f5+!
    • 1.Qh1+?
      • 1...f3
        • 2.Qxf3#
      • 1...Kf5!
    • 1.f3+?
      • 1...Kd3
        • 2.Sc5#
        • 2.Qd2#
      • 1...Kf5!
  • Keys
    • 1.Rg5!
      • threat
        • 2.Qxe2#
      • 1...Rxb3+
        • 2.Rxb3#
      • 1...Kd3
        • 2.Sc5#
      • 1...Kf3
        • 2.Sd2#
      • 1...d3
        • 2.Ra7#
      • 1...f3
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(F);S_FLIGHT
      • Threat
        • DUALS(4)
      • Vars
        • P(g);::S(D)
      • Refutation
        • P(i);CHECK
    • Try
      • Q(B);CHECK,N_PINP(b)
      • Vars
        • P(g);P_SPINP(g)::QAB1(B),XP(g)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • P(C);CHECK
      • Refutation
        • K(f);N_SPINP(b),S_FLIGHT
  • Actual
    • R(E);P_SPINS(D)
    • Threat
      • QAR2(B),XP(b)
    • Vars
      • R(c);CHECK,OGATE,XS(D)::B(I)+R(G),XR(c)
      • K(f);N_PINS(D),N_SPINP(b),S_FLIGHT::S(D)
      • P(e);N_PINS(D),SBLOCK::B(I)+R(G)
      • P(g);N_PINS(D),SBLOCK::S(D)
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