MESON Chess Problem Database

Problem Display
PID: 21735 (4N3/p2p1n2/K2P4/3kp1N1/4R1P1/n1Q5/8/8 w - - 0 1)

Warton, Joseph John

Warton, Thomas Joseph

Western Daily Mercury, 1920

(First published on Fri Aug 13 1920)

4N3/p2p1n2/K2P4/3kp1N1/4R1P1/n1Q5/8/8

#2

7 + 6

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sb1
      • 2.Qc4#
    • 1...Sc2
      • 2.Qc4#
    • 1...Sc4
      • 2.Qxc4#
    • 1...Sb5
      • 2.Qc4#
    • 1...Sxg5
      • 2.Rxe5#
    • 1...Sxd6
      • 2.Sf6#
      • 2.Sc7#
      • 2.Rxe5#
    • 1...Sh6
      • 2.Rxe5#
    • 1...Sd8
      • 2.Rxe5#
    • 1...Sh8
      • 2.Rxe5#
  • Tries
    • 1.Ka5?
      • 1...Sc4+
        • 2.Qxc4#
      • 1...Sxg5
        • 2.Rxe5#
      • 1...Sxd6
        • 2.Sf6#
        • 2.Sc7#
        • 2.Rxe5#
      • 1...Sb1
        • 2.Qc4#
      • 1...Sc2
        • 2.Qc4#
      • 1...Sb5
        • 2.Qc4#
      • 1...Sh6
        • 2.Rxe5#
      • 1...Sd8
        • 2.Rxe5#
      • 1...Sh8
        • 2.Rxe5#
      • 1...a6!
    • 1.Kxa7?
      • 1...Sxg5
        • 2.Rxe5#
      • 1...Sxd6
        • 2.Sf6#
        • 2.Sc7#
        • 2.Rxe5#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sb1
        • 2.Qc4#
      • 1...Sc2
        • 2.Qc4#
      • 1...Sh6
        • 2.Rxe5#
      • 1...Sd8
        • 2.Rxe5#
      • 1...Sh8
        • 2.Rxe5#
      • 1...Sb5+!
    • 1.Qa5+?
      • 1...Sb5
        • 2.Qxb5#
      • 1...Kc6!
  • Keys
    • 1.Sh3!
      • 1...Kxe4
        • 2.Sf6#
      • 1...Ke6
        • 2.Sf4#
      • 1...Sxd6
        • 2.Rxe5#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sb1
        • 2.Qc4#
      • 1...Sc2
        • 2.Qc4#
      • 1...Sb5
        • 2.Qc4#
      • 1...Sg5
        • 2.Rxe5#
      • 1...Sh6
        • 2.Rxe5#
      • 1...Sd8
        • 2.Rxe5#
      • 1...Sh8
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAB1(A)
    • S(a);N_GUARD::QAB1(A),XS(a)
    • S(f);N_GUARD,XS(D)::R1(B),XP(c)
    • S(f);N_GUARD::R1(B),XP(c)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Vars
        • S(a);CHECK,N_GUARD::QAB1(A),XS(a)
        • S(f);N_GUARD,XS(D)::R1(B),XP(c)
        • S(a);N_GUARD::QAB1(A)
        • S(f);N_GUARD::R1(B),XP(c)
      • Refutation
        • P(d);
    • Try
      • K(E);P-FLIGHT,XP(d)
      • Vars
        • S(f);N_GUARD,XS(D)::R1(B),XP(c)
        • S(a);N_GUARD::QAB1(A),XS(a)
        • S(a);N_GUARD::QAB1(A)
        • S(f);N_GUARD::R1(B),XP(c)
      • Refutation
        • S(a);CHECK
    • Try
      • Q(A);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAR2(A),XS(a)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(b);S_FLIGHT,XR(B)::S(G)
      • K(b);P_SPINP(c),S_FLIGHT::S(D)
      • S(f);N_GUARD,XP(F)::R1(B),XP(c)
      • S(a);N_GUARD::QAB1(A),XS(a)
      • S(a);N_GUARD::QAB1(A)
      • S(f);N_GUARD::R1(B),XP(c)
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