MESON Chess Problem Database

Problem Display
PID: 195131 (2N5/1KPN4/1Q1p4/1nPp4/1Pkr4/pnbRp3/BRqBP3/8 w - - 0 1)

Barnett, Bernard

Pittsburgh Gazette-Times, 1918

2N5/1KPN4/1Q1p4/1nPp4/1Pkr4/pnbRp3/BRqBP3/8

#2

12 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kxb4
      • 2.Rxd4#
    • 1...Sa7
      • 2.Sxd6#
    • 1...Sxc7
      • 2.Sxd6#
    • 1...dxc5
      • 2.Qxc5#
  • Tries
    • 1.Se5+?
      • 1...Kxb4
        • 2.Rxd4#
      • 1...dxe5!
    • 1.Sxd6+?
      • 1...Kxb4
        • 2.Rxd4#
        • 2.Qxb5#
      • 1...Sxd6+!
    • 1.Bxb3+?
      • 1...Kxb4
        • 2.Rxd4#
      • 1...Qxb3!
    • 1.Qa5?
      • threat
        • 2.Sdb6#
        • 2.Scb6#
      • 1...Bxb4
        • 2.Scb6#
        • 2.Qxb4#
      • 1...Rxd3!
  • Keys
    • 1.cxd6!
      • threat
        • 2.Qc5#
      • 1...Sxd6+
        • 2.Sxd6#
      • 1...Kxb4
        • 2.Rxd4#
      • 1...Bxb4
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • K(f);P-FLIGHT,P_SPINB(d),XP(F)::R(E),XR(g)
    • S(h);N_GUARD::S(L),XP(j)
    • S(h);N_GUARD,XP(J)::S(L),XP(j)
    • P(j);OGATE,XP(G)::QAR1(H),XP(j)
  • Tries
    • Try
      • S(K);CHECK
      • Vars
        • K(f);P-FLIGHT,P_SPINB(d),XP(F)::R(E),XR(g)
      • Refutation
        • P(j);XS(K)
    • Try
      • S(L);CHECK,XP(j)
      • Refutation
        • S(h);CHECK,XS(L)
    • Try
      • B(A);CHECK,XS(c)
      • Vars
        • K(f);P-FLIGHT,P_SPINB(d),P_SPINS(h),XP(F)::R(E),XR(g)
      • Refutation
        • Q(a);XB(A)
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Refutation
        • R(g);XR(E)
  • Actual
    • P(G);XP(j)
    • Threat
      • QAR1(H)
    • Vars
      • S(h);CHECK,XP(G)::S(L),XS(h)
      • K(f);P-FLIGHT,P_SPINB(d),XP(F)::R(E),XR(g)
      • B(d);XP(F)::S(K)
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