MESON Chess Problem Database

Problem Display
PID: 181797 (6B1/2rppq2/3N4/1pPk1pR1/1P1PR3/8/2Q5/4K3 w - - 0 1)

Kapp, Henry J

British Chess Magazine, 1905

6B1/2rppq2/3N4/1pPk1pR1/1P1PR3/8/2Q5/4K3

#2

9 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc5
      • 2.Qxc5#
    • 1...Rc6
      • 2.Qb3#
      • 2.Qa2#
  • Tries
    • 1.Bxf7+?
      • 1...Kc6
        • 2.d5#
      • 1...e6!
    • 1.Rxe7?
      • threat
        • 2.Qe4#
      • 1...Kxd4
        • 2.Qd2#
      • 1...Rxc5
        • 2.Qxc5#
      • 1...Kc6!
  • Keys
    • 1.Re6!
      • threat
        • 2.Qe4#
      • 1...Kxd4
        • 2.Qd2#
      • 1...Kc6
        • 2.Qg2#
      • 1...Kxe6
        • 2.Qxf5#
      • 1...exd6
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(d);OGATE,XP(F)::QAR1(B),XR(d)
  • Tries
    • Try
      • B(I);CHECK,XQ(g)
      • Vars
        • K(b);N_SPINP(c),OGATE,S_FLIGHT::P(D)
      • Refutation
        • P(f);
    • Try
      • R(E);XP(f)
      • Threat
        • QAB1(B)
      • Vars
        • K(b);N_SPINP(c),N_SPINQ(g),OGATEB,P-FLIGHT,XP(D)::QAR2(B)
        • R(d);OGATE,XP(F)::QAR1(B),XR(d)
      • Refutation
        • K(b);N_SPINP(c),N_SPINQ(g),S_FLIGHT
  • Actual
    • R(E);N_PINQ(g)
    • Threat
      • QAB1(B)
    • Vars
      • K(b);N_SPINP(c),OGATEB,P-FLIGHT,XP(D)::QAR2(B)
      • K(b);N_SPINP(c),S_FLIGHT::QAB(B)
      • K(b);N_SPINP(c),P_SPINQ(g),S_FLIGHT,XR(E)::QAB1(B),XP(c)
      • P(f);OGATE,XS(H)::R1(E),XP(f)
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