MESON Chess Problem Database

Problem Display
PID: 253123 (1K1R4/8/4N3/2Pp4/1R6/3k4/Q2p2n1/2rN1b2 w - - 0 1)

Wheeler, Arthur

Manchester Weekly Times, 1890

(First published on Sat Jun 14 1890)

1K1R4/8/4N3/2Pp4/1R6/3k4/Q2p2n1/2rN1b2

#2

7 + 6

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qc4#
    • 1...Rb1
      • 2.Qc4#
    • 1...Rc4
      • 2.Qxc4#
    • 1...Be2
      • 2.Rd4#
      • 2.Rxd5#
    • 1...Se1
      • 2.Sf4#
    • 1...Se3
      • 2.Sf4#
    • 1...Sf4
      • 2.Sxf4#
    • 1...Sh4
      • 2.Sf4#
  • Tries
    • 1.Qxd5+?
      • 1...Kc2
        • 2.Qb3#
        • 2.Qxd2#
      • 1...Ke2!
    • 1.Qa6+?
      • 1...Rc4
        • 2.Qxc4#
      • 1...Kc2!
  • Keys
    • 1.Re4!
      • 1...Rb1+
        • 2.Qxb1#
      • 1...Kxe4
        • 2.Qxd5#
      • 1...Rxd1
        • 2.Qc4#
      • 1...Rxc5
        • 2.Sxc5#
      • 1...Se3
        • 2.Rxe3#
      • 1...Ra1
        • 2.Qc4#
      • 1...Rc2
        • 2.Qxd5#
      • 1...Rc3
        • 2.Sf2#
      • 1...Rc4
        • 2.Qxc4#
      • 1...Be2
        • 2.Rd4#
      • 1...Se1
        • 2.Re3#
      • 1...Sf4
        • 2.Re3#
      • 1...Sh4
        • 2.Re3#
      • 1...d4
        • 2.Rdxd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 5
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • R(a);N_GUARD::QAB1(B)
    • R(a);N_GUARD,P_PINR(C)::QAB1(B)
    • R(a);N_GUARD::QAB1(B),XR(a)
    • S(d);N_GUARD::S(E)
    • S(d);N_GUARD::S(E),XS(d)
  • Tries
    • Try
      • Q(B);CHECK,XP(f)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::QAB1(B),XR(a)
      • Refutation
        • K(e);N_SPINP(f),S_FLIGHT
  • Actual
    • R(C);
    • Vars
      • R(a);CHECK,N_GUARD::QAB(B),XR(a)
      • K(e);N_GUARD,N_SPINP(f),S_FLIGHT,XR(C)::QAB1(B),XP(f)
      • R(a);N_GUARD,XS(A)::QAB1(B)
      • R(a);XP(D)::S(E),XR(a)
      • S(d);N_GUARD::R1(C),XS(d)
      • R(a);N_GUARD::QAB1(B)
      • R(a);SBLOCK::QAR2(B),XP(f)
      • R(a);SBLOCK::S(A)
      • R(a);N_GUARD::QAB1(B),XR(a)
      • B(b);SBLOCK::R1(C)
      • S(d);N_GUARD::R1(C)
      • P(f);OGATE::R1(G),XP(f)
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