MESON Chess Problem Database

Problem Display
PID: 270915 (b2K4/3pQ3/8/1p1k4/1p1B2p1/n7/N1n1Bp2/3R2r1 w - - 0 1)

Westbury, Eric Ernest

La Strategie, 1900

b2K4/3pQ3/8/1p1k4/1p1B2p1/n7/N1n1Bp2/3R2r1

#2

6 + 10

17417 Westbury Scrapbooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qxd7#
    • 1...Bc6
      • 2.Qe5#
    • 1...Sa1
      • 2.Sxb4#
    • 1...Se1
      • 2.Sxb4#
    • 1...Se3
      • 2.Sxb4#
    • 1...Sxd4
      • 2.Sxb4#
  • Tries
    • 1.Kxd7?
      • threat
        • 2.Qe5#
        • 2.Qe6#
      • 1...Rxd1
        • 2.Qe5#
      • 1...Sxd4
        • 2.Sxb4#
      • 1...Sc4
        • 2.Qe6#
      • 1...Bc6+!
    • 1.Sc3+?
      • 1...Kc6
        • 2.Qxd7#
      • 1...bxc3!
    • 1.Bxf2+?
      • 1...Kc6
        • 2.Qxd7#
      • 1...Sd4
        • 2.Sxb4#
      • 1...Rxd1!
    • 1.Be3+?
      • 1...Kc6
        • 2.Qxd7#
      • 1...Sd4
        • 2.Sxb4#
      • 1...Rxd1!
    • 1.Ba7+?
      • 1...Kc6
        • 2.Qxd7#
      • 1...Sd4
        • 2.Sxb4#
      • 1...Rxd1!
    • 1.Qc5+?
      • 1...Ke4
        • 2.Qe5#
      • 1...Ke6!
    • 1.Qd6+?
      • 1...Ke4
        • 2.Qe5#
      • 1...Kxd6!
    • 1.Qf7+?
      • 1...Kc6
        • 2.Qxd7#
      • 1...Kd6
        • 2.Qxd7#
      • 1...Ke4!
  • Keys
    • 1.Bd3!
      • threat
        • 2.Qxd7#
      • 1...Kxd4
        • 2.Bf1#
      • 1...Kc6
        • 2.Qxd7#
      • 1...Sxd4
        • 2.Sxb4#
      • 1...Bc6
        • 2.Qe5#
      • 1...Sc4
        • 2.Be4#
      • 1...d6
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • K(h);N_GUARD,S_FLIGHT::QAB1(E),XP(i)
    • B(j);SBLOCK::QAR1(E)
    • S(b);N_GUARD::S(B),XP(e)
    • S(b);N_GUARD,P_SPINS(b),XB(D)::S(B),XP(e)
  • Tries
    • Try
      • K(F);P-FLIGHT,XP(i)
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XR(A)::QAR1(E)
        • S(b);N_GUARD,P_SPINS(b),XB(D)::S(B),XP(e)
        • S(d);::QAB1(E)
      • Refutation
        • B(j);CHECK
    • Try
      • S(B);CHECK
      • Vars
        • K(h);S_FLIGHT::QAB1(E),XP(i)
      • Refutation
        • P(e);XS(B)
    • Try
      • B(D);CHECK,XP(c)
      • Vars
        • K(h);N_GUARD,S_FLIGHT::QAB1(E),XP(i)
        • S(b);P_SPINS(b)::S(B),XP(e)
      • Refutation
        • R(a);XR(A)
    • Try
      • B(D);CHECK
      • Vars
        • K(h);N_GUARD,S_FLIGHT::QAB1(E),XP(i)
        • S(b);P_SPINS(b)::S(B),XP(e)
      • Refutation
        • R(a);XR(A)
    • Try
      • B(D);CHECK
      • Vars
        • K(h);N_GUARD,S_FLIGHT::QAB1(E),XP(i)
        • S(b);P_SPINS(b)::S(B),XP(e)
      • Refutation
        • R(a);XR(A)
    • Try
      • Q(E);CHECK
      • Vars
        • K(h);OGATE,S_FLIGHT::QAR1(E)
      • Refutation
        • K(h);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(h);N_GUARD,S_FLIGHT::QAR1(E)
      • Refutation
        • K(h);P-FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(h);N_GUARD,S_FLIGHT::QAB1(E),XP(i)
        • K(h);N_GUARD,P-FLIGHT::QAR1(E),XP(i)
      • Refutation
        • K(h);S_FLIGHT
  • Actual
    • B(C);
    • Threat
      • QAR2(E),XP(i)
    • Vars
      • K(h);OGATEB,P-FLIGHT,XB(D)::R(A)+B(C)
      • K(h);S_FLIGHT::QAB1(E),XP(i)
      • S(b);N_GUARD,SBLOCK,XB(D)::S(B),XP(e)
      • B(j);SBLOCK::QAR1(E)
      • S(d);SBLOCK::B(C)
      • P(i);SBLOCK::QAB1(E)
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