MESON Chess Problem Database

Problem Display
PID: 193988 (Q7/2pbpN2/6p1/3B4/3k2r1/BP1p4/1P4R1/2K2N2 w - - 0 1)

Fink, Adolf Jay

Pittsburgh Gazette-Times, 1916

Q7/2pbpN2/6p1/3B4/3k2r1/BP1p4/1P4R1/2K2N2

#2

9 + 7

5454 Near Snap 2019
6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.Rxg4#
    • 1...Bb5
      • 2.Rxg4#
    • 1...Be8
      • 2.Rxg4#
    • 1...d2+
      • 2.Rxd2#
    • 1...e6
      • 2.Rxg4#
  • Tries
    • 1.Bc6?
      • threat
        • 2.Qa4#
        • 2.Qa7#
      • 1...d2+
        • 2.Rxd2#
      • 1...Rg5
        • 2.Qa4#
      • 1...Be6
        • 2.Qa7#
        • 2.Qh8#
      • 1...Bxc6!
    • 1.Qc6?
      • threat
        • 2.Bc5#
        • 2.Qc4#
        • 2.Qc5#
      • 1...d2+
        • 2.Rxd2#
      • 1...Bxc6!
    • 1.Qa5?
      • threat
        • 2.Qc5#
      • 1...d2+
        • 2.Rxd2#
        • 2.Qxd2#
      • 1...c5
        • 2.Qxc5#
      • 1...Bb5!
    • 1.Qa7+?
      • 1...c5
        • 2.Qxc5#
      • 1...Kxd5!
    • 1.Qh8+?
      • 1...e5
        • 2.Qxe5#
      • 1...Kxd5!
  • Keys
    • 1.Bf3!
      • threat
        • 2.Qd5#
      • 1...d2+
        • 2.Rxd2#
      • 1...Re4
        • 2.Qxe4#
      • 1...Rg5
        • 2.Qe4#
      • 1...Bc6
        • 2.Qa7#
      • 1...Be6
        • 2.Qh8#
      • 1...c6
        • 2.Qa4#
      • 1...e6
        • 2.Rxg4#

This anticipates 78879(1947)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • B(f);N_GUARD::R(D),XR(c)
    • P(a);CHECK,OGATEB::R(D),XP(a)
    • P(g);S_CUTB(f)::R(D),XR(c)
  • Tries
    • Try
      • B(G);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);CHECK,OGATEB::R(D),XP(a)
        • R(c);::QAR(I)
      • Refutation
        • B(f);XB(G)
    • Try
      • Q(I);
      • Threat
        • DUALS(3)
      • Vars
        • P(a);CHECK,OGATEB::R(D),XP(a)
      • Refutation
        • B(f);XQ(I)
    • Try
      • Q(I);
      • Threat
        • QAB1(I)
      • Vars
        • P(e);::QAB1(I),XP(e)
      • Refutation
        • B(f);
    • Try
      • Q(I);CHECK
      • Vars
        • P(e);P_SPINP(e)::QAB1(I),XP(e)
      • Refutation
        • K(b);P-FLIGHT,XB(G)
    • Try
      • Q(I);CHECK
      • Vars
        • P(g);P_SPINP(g)::QAB1(I),XP(g)
      • Refutation
        • K(b);P-FLIGHT,XB(G)
  • Actual
    • B(G);
    • Threat
      • QAR1(I)
    • Vars
      • P(a);CHECK,OGATEB::R(D),XP(a)
      • R(c);N_GUARD::QAR1(I),XR(c)
      • R(c);N_GUARD::QAR1(I)
      • B(f);S_CUTP(e)::QAB(I)
      • B(f);S_CUTP(g)::QAB(I)
      • P(e);S_CUTB(f)::QAR(I)
      • P(g);S_CUTB(f)::R(D),XR(c)
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