MESON Chess Problem Database

Problem Display
PID: 108613 (5n2/5Kp1/2B1N3/2p2k2/1Pp2r2/Q5B1/5N2/8 w - - 0 1)

Kenney, Ebenezer Wood

Ottawa Citizen, 1885

5n2/5Kp1/2B1N3/2p2k2/1Pp2r2/Q5B1/5N2/8

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.Be4#
      • 2.Qxf3#
    • 1...Re4
      • 2.Bxe4#
    • 1...cxb4
      • 2.Qa5#
  • Tries
    • 1.Bxf4?
      • threat
        • 2.Be4#
        • 2.Qh3#
      • 1...c3
        • 2.Be4#
      • 1...g5
        • 2.Be4#
      • 1...Sxe6!
    • 1.Be4+?
      • 1...Ke5+
        • 2.Bxf4#
      • 1...Rxe4!
    • 1.Qd3+?
      • 1...Ke5+
        • 2.Bxf4#
      • 1...Re4
        • 2.Bxe4#
        • 2.Qxe4#
      • 1...cxd3!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qd5#
        • 2.Qxf4#
      • 1...Ke5+
        • 2.Qxf4#
      • 1...Rxf3
        • 2.Be4#
      • 1...Sxe6
        • 2.Qd5#
      • 1...Sg6
        • 2.Qh5#
      • 1...Sd7
        • 2.Qxf4#
      • 1...g5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • R(b);N_GUARD::B(E),XR(b)
    • P(c);OGATEB,XP(D)::QAR(B)
  • Tries
    • Try
      • B(C);XR(b)
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::B(E)
        • P(e);::B(E)
      • Refutation
        • S(f);XS(F)
    • Try
      • B(E);CHECK
      • Vars
        • K(d);CHECK,P-FLIGHT,P_SPINR(b)::B(C),XR(b)
      • Refutation
        • R(b);XB(E)
    • Try
      • Q(B);CHECK
      • Vars
        • K(d);CHECK,P-FLIGHT,P_SPINR(b)::B(C),XR(b)
      • Refutation
        • P(a);XQ(B)
  • Actual
    • Q(B);P_PINR(b)
    • Threat
      • DUALS(2)
    • Vars
      • K(d);CHECK,P-FLIGHT::QAB1(B),XR(b)
      • R(b);N_SPINR(b),XQ(B)::B(E)
      • S(f);XS(F)::QAR2(B)
      • S(f);S_CUTP(e)::QAR2(B)
      • S(f);::QAR1(B),XR(b)
      • P(e);::QAR2(B)
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