MESON Chess Problem Database

Problem Display
PID: 47795 (1n6/2Q2p2/2pN1p2/4k3/1p3N2/3K3b/3P1RpB/6n1 w - - 0 1)

Daniel, Arthur William

Northern Whig, 1912

1n6/2Q2p2/2pN1p2/4k3/1p3N2/3K3b/3P1RpB/6n1

#2

7 + 9

1842 The White King 1914

SOLUTION

  • SOUND
  • Sets
    • 1...Bf5+
      • 2.Se4#
    • 1...Se2
      • 2.Rxe2#
    • 1...Sf3
      • 2.Re2#
    • 1...c5
      • 2.Qxc5#
    • 1...f5
      • 2.Se4#
      • 2.Se8#
      • 2.Qe7#
  • Tries
    • 1.Se2+?
      • 1...Ke6
        • 2.Qxf7#
      • 1...Kd5!
    • 1.Sxg2+?
      • 1...Ke6
        • 2.Qxf7#
      • 1...Kd5!
    • 1.Sxh3+?
      • 1...Ke6
        • 2.Qxf7#
      • 1...Kd5!
    • 1.Sd5+?
      • 1...Ke6
        • 2.Qxf7#
      • 1...Kxd5!
    • 1.Sh5+?
      • 1...Ke6
        • 2.Qxf7#
      • 1...Kd5!
    • 1.Se6+?
      • 1...Kxe6
        • 2.Qxf7#
      • 1...Kd5!
    • 1.Sg6+?
      • 1...Ke6
        • 2.Qxf7#
      • 1...Kd5!
    • 1.Rf3?
      • threat
        • 2.Re3#
      • 1...Bf5+
        • 2.Se4#
      • 1...f5
        • 2.Se4#
        • 2.Se8#
        • 2.Qe7#
      • 1...Sxf3!
    • 1.Qa5+?
      • 1...c5
        • 2.Qxc5#
      • 1...Kxd6!
  • Keys
    • 1.Kc4!
      • threat
        • 2.d4#
      • 1...Be6+
        • 2.Sd5#
      • 1...f5
        • 2.Qe7#
      • 1...Se2
        • 2.Rxe2#
      • 1...Sf3
        • 2.Re2#
      • 1...c5
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(c);CHECK,SBLOCK::QAB(G)+S(F)
    • S(a);N_GUARD::R(B),XS(a)
    • S(a);N_GUARD::R(B)
    • P(f);OGATE::QAR2(G),XP(f)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(e);P-FLIGHT::QAB1(G),XP(h)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • S(E);CHECK,XP(b)
      • Vars
        • K(e);P-FLIGHT::QAB1(G),XP(h)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • S(E);CHECK,XB(c)
      • Vars
        • K(e);P-FLIGHT::QAB1(G),XP(h)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(e);P-FLIGHT::QAB1(G),XP(h)
      • Refutation
        • K(e);P-FLIGHT,XS(E)
    • Try
      • S(E);CHECK
      • Vars
        • K(e);P-FLIGHT::QAB1(G),XP(h)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(e);P-FLIGHT,XS(E)::QAB1(G),XP(h)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(e);P-FLIGHT::QAB1(G),XP(h)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • B(c);CHECK,SBLOCK::QAB(G)+S(F)
      • Refutation
        • S(a);XR(B)
    • Try
      • Q(G);CHECK
      • Vars
        • P(f);P_SPINP(f)::QAR2(G),XP(f)
      • Refutation
        • K(e);S_FLIGHT,XS(F)
  • Actual
    • K(D);S_FLIGHT
    • Threat
      • P(A)
    • Vars
      • B(c);CHECK,SBLOCK::B(C)+S(E)
      • P(g);S_CUTB(c)::QAR2(G)
      • S(a);N_GUARD::R(B),XS(a)
      • S(a);N_GUARD::R(B)
      • P(f);OGATE::QAR2(G),XP(f)
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