MESON Chess Problem Database

Problem Display
PID: 44655 (4b3/1p2b3/1B2B3/1kP5/1p5r/4N2p/R1NK4/3Q4 w - - 0 1)

Gilberg, Charles Alexander

Source?, 0000

4b3/1p2b3/1B2B3/1kP5/1p5r/4N2p/R1NK4/3Q4

#2

8 + 7

176 Crumbs from the Chess-board 1890
5454 Near Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4+
      • 2.Sxd4#
    • 1...Rh5
      • 2.Sd4#
    • 1...Rh6
      • 2.Sd4#
    • 1...Rh7
      • 2.Sd4#
    • 1...Rh8
      • 2.Sd4#
    • 1...Bh5
      • 2.Bd7#
    • 1...Bc6
      • 2.Ra5#
    • 1...Bg6
      • 2.Bd7#
    • 1...Bd7
      • 2.Bxd7#
    • 1...Bf7
      • 2.Bd7#
  • Tries
    • 1.Bd5?
      • threat
        • 2.Ra5#
      • 1...Rd4+
        • 2.Sxd4#
      • 1...Bxc5!
    • 1.Qe2+?
      • 1...Rc4
        • 2.Sd4#
      • 1...Kc6!
    • 1.Qf1+?
      • 1...Rc4
        • 2.Sd4#
      • 1...Kc6!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qxe8#
      • 1...Rd4+
        • 2.Sxd4#
      • 1...Kc6
        • 2.Qxe8#
      • 1...Rxh5
        • 2.Sd4#
      • 1...Bxc5
        • 2.Qxc5#
      • 1...Bxh5
        • 2.Bd7#
      • 1...Bc6
        • 2.Ra5#
      • 1...Bg6
        • 2.Bd7#
      • 1...Bd7
        • 2.Bxd7#
      • 1...Bf7
        • 2.Bd7#

This anticipates 208733(1875)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(c);CHECK,N_GUARD::S(C),XR(c)
    • R(c);N_GUARD::S(C)
    • B(g);N_GUARD::B(H)
    • B(g);SBLOCK::R1(B)
    • B(g);N_GUARD::B(H),XB(g)
  • Tries
    • Try
      • B(H);
      • Threat
        • R1(B)
      • Vars
        • R(c);CHECK,N_GUARD::S(C),XR(c)
      • Refutation
        • B(f);XP(F)
    • Try
      • Q(A);CHECK
      • Vars
        • R(c);P_SPINR(c)::S(C)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • R(c);P_SPINR(c)::S(C)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAB(A),XB(g)
    • Vars
      • R(c);CHECK,N_GUARD::S(C),XR(c)
      • K(d);S_FLIGHT::QAB(A),XB(g)
      • R(c);N_GUARD,XQ(A)::S(C)
      • B(f);OGATE,P_SPINB(f),XP(F)::QAR1(A),XB(f)
      • B(g);N_GUARD,XQ(A)::B(H)
      • B(g);SBLOCK::R1(B)
      • B(g);N_GUARD::B(H)
      • B(g);N_GUARD::B(H),XB(g)
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