MESON Chess Problem Database

Problem Display
PID: 169420 (8/5K2/2pkp3/B1Np4/3Q4/8/8/8 w - - 0 1)

Hawes, Frederick Thomas

The Leader, 1909

8/5K2/2pkp3/B1Np4/3Q4/8/8/8

#2

4 + 4

5454 Near Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qb2?
      • 1...Kxc5
        • 2.Qb4#
      • 1...d4
        • 2.Qxd4#
      • 1...e5!
    • 1.Qf2?
      • 1...Ke5
        • 2.Bc7#
      • 1...d4
        • 2.Qxd4#
      • 1...e5!
    • 1.Qc3?
      • 1...d4
        • 2.Qxd4#
      • 1...e5!
    • 1.Qe3?
      • 1...d4
        • 2.Qxd4#
      • 1...e5!
    • 1.Qf6?
      • 1...d4
        • 2.Qxd4#
      • 1...Kxc5!
    • 1.Qg7?
      • 1...d4
        • 2.Qxd4#
      • 1...e5
        • 2.Qf8#
      • 1...Kxc5!
    • 1.Qh8?
      • 1...d4
        • 2.Qxd4#
      • 1...e5
        • 2.Qf8#
      • 1...Kxc5!
    • 1.Qf4+?
      • 1...Kxc5
        • 2.Qb4#
      • 1...e5!
    • 1.Qh4?
      • 1...Kxc5
        • 2.Qb4#
      • 1...d4
        • 2.Qxd4#
      • 1...e5
        • 2.Qe7#
      • 1...Ke5!
  • Keys
    • 1.Qg4!
      • 1...Kxc5
        • 2.Qb4#
      • 1...Ke5
        • 2.Bc7#
      • 1...d4
        • 2.Qxd4#
      • 1...e5
        • 2.Sb7#

Anticipated by 175727(1898)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);N_PINP(a)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(C)::QAB1(A)
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • P(d);
    • Try
      • Q(A);N_PINP(a)
      • Vars
        • K(c);S_FLIGHT::B(B)
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • P(d);
    • Try
      • Q(A);N_PINP(a)
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • P(d);
    • Try
      • Q(A);N_PINP(a)
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • P(d);
    • Try
      • Q(A);N_PINP(a),P_PINP(d)
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • K(c);N_SPINP(d),S_FLIGHT,XS(C)
    • Try
      • Q(A);N_PINP(a)
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
        • P(d);SBLOCK::QAB(A)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • Q(A);N_PINP(a)
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
        • P(d);SBLOCK::QAB(A)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(C)::QAB1(A)
      • Refutation
        • P(d);P_SPINP(d)
    • Try
      • Q(A);N_PINP(a)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(C)::QAB1(A)
        • P(a);OGATEB::QAR2(A),XP(a)
        • P(d);::QAB1(A)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(A);N_PINP(a)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(C)::QAB1(A)
      • K(c);S_FLIGHT::B(B)
      • P(a);OGATEB::QAR2(A),XP(a)
      • P(d);SBLOCK::S(C)
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