MESON Chess Problem Database

Problem Display
PID: 20897 (8/2p5/2p1B3/2K3Pp/4kp1P/3Rp3/4Q3/1N6 w - - 0 1)

Locock, Charles Dealtry

Oxford Times, 1913

8/2p5/2p1B3/2K3Pp/4kp1P/3Rp3/4Q3/1N6

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...f3
      • 2.Qxe3#
  • Tries
    • 1.Kxc6?
      • 1...f3
        • 2.Qxe3#
      • 1...Ke5!
    • 1.Sa3?
      • 1...f3
        • 2.Qxe3#
      • 1...Ke5!
    • 1.Bh3?
      • 1...f3
        • 2.Qxe3#
      • 1...Ke5!
    • 1.Bd7?
      • 1...f3
        • 2.Qxe3#
      • 1...Ke5!
    • 1.Bc8?
      • 1...f3
        • 2.Qxe3#
      • 1...Ke5!
    • 1.Ra3?
      • 1...f3
        • 2.Qxe3#
      • 1...Ke5!
    • 1.Rb3?
      • 1...f3
        • 2.Qxe3#
      • 1...Ke5!
    • 1.Rc3?
      • 1...f3
        • 2.Qxe3#
      • 1...Ke5!
    • 1.Rd5?
      • threat
        • 2.Sd2#
        • 2.Sc3#
        • 2.Bf5#
      • 1...f3
        • 2.Qc4#
      • 1...cxd5!
    • 1.Qg4?
      • 1...Kxd3
        • 2.Bf5#
      • 1...Ke5
        • 2.Qf5#
      • 1...e2
        • 2.Qxe2#
        • 2.Qf5#
      • 1...hxg4!
    • 1.Qb2?
      • 1...Kxd3
        • 2.Bf5#
      • 1...e2
        • 2.Qd4#
        • 2.Qxe2#
      • 1...f3
        • 2.Qd4#
      • 1...Kf3!
    • 1.g6?
      • 1...f3
        • 2.Qxe3#
      • 1...Ke5!
  • Keys
    • 1.Qh2!
      • 1...Kxd3
        • 2.Bf5#
      • 1...Kf3
        • 2.Sd2#
      • 1...Ke5
        • 2.Rxe3#
      • 1...e2
        • 2.Qxe2#
      • 1...f3
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::QAR1(B),XP(a)
  • Tries
    • Try
      • K(E);P-FLIGHT,XP(e)
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(A);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(G);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(G);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(G);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(C);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(C);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(C);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(C);
      • Threat
        • DUALS(3)
      • Vars
        • P(c);SBLOCK::QAR2(B)
      • Refutation
        • P(e);XR(C)
    • Try
      • Q(B);N_PINP(a),P_PINP(c)
      • Vars
        • K(b);N_SPINP(c),S_FLIGHT,XR(C)::B(G)
        • K(b);N_SPINP(c),P-FLIGHT::QAR1(B)
      • Refutation
        • P(d);N_SPINP(c),XQ(B)
    • Try
      • Q(B);N_PINP(a)
      • Vars
        • K(b);S_FLIGHT,XR(C)::B(G)
        • P(c);SBLOCK::QAR1(B)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • P(F);
      • Vars
        • P(c);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(B);N_PINP(a)
    • Vars
      • K(b);S_FLIGHT,XR(C)::B(G)
      • K(b);P_SPINP(a),S_FLIGHT::S(A)
      • K(b);P-FLIGHT,P_SPINP(c)::R(C),XP(a)
      • P(a);OGATEB::QAR2(B),XP(a)
      • P(c);SBLOCK::R1(C)
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