MESON Chess Problem Database

Problem Display
PID: 194210 (1n4b1/pq1p4/3P2P1/r2k1B2/N2p4/p1R1R1Bp/Kp5p/1N1Q2n1 w - - 0 1)

Fink, Adolf Jay

Pittsburgh Gazette-Times, 1917

1n4b1/pq1p4/3P2P1/r2k1B2/N2p4/p1R1R1Bp/Kp5p/1N1Q2n1

#2

10 + 13

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qa8
      • 2.Qb3#
    • 1...Qb3+
      • 2.Qxb3#
    • 1...Rc5
      • 2.Rxc5#
    • 1...Ra6
      • 2.Rc5#
    • 1...Be6
      • 2.Be4#
    • 1...Se2
      • 2.Qh1#
    • 1...Sf3
      • 2.Qxf3#
    • 1...d3
      • 2.Rexd3#
      • 2.Qxd3#
  • Tries
    • 1.Sb6+?
      • 1...axb6
        • 2.Qb3#
      • 1...Qxb6!
    • 1.Bc2?
      • threat
        • 2.Qh5#
      • 1...Qb3+
        • 2.Bxb3#
      • 1...Rc5
        • 2.Rxc5#
      • 1...d3
        • 2.Qxd3#
      • 1...Be6
        • 2.Be4#
      • 1...Se2
        • 2.Qh1#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sc6!
    • 1.Qd3?
      • threat
        • 2.Qc4#
        • 2.Qe4#
      • 1...Rxa4
        • 2.Qe4#
      • 1...Rc5
        • 2.Rxc5#
        • 2.Qe4#
      • 1...h1Q
        • 2.Qc4#
      • 1...h1B
        • 2.Qc4#
      • 1...Qa6
        • 2.Qe4#
      • 1...Qc6
        • 2.Qe4#
      • 1...Qc8
        • 2.Qe4#
      • 1...Qb4
        • 2.Qe4#
      • 1...Qb5
        • 2.Qe4#
      • 1...Qc7
        • 2.Qe4#
      • 1...Qb3+!
  • Keys
    • 1.Bd3!
      • threat
        • 2.Qh5#
      • 1...Qb3+
        • 2.Qxb3#
      • 1...dxc3
        • 2.Bb5#
      • 1...dxe3
        • 2.Bf5#
      • 1...Rc5
        • 2.Rxc5#
      • 1...Be6
        • 2.Be4#
      • 1...Se2
        • 2.Qh1#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sc6
        • 2.Bc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • Q(j);N_GUARD::QAB(B)
    • Q(j);CHECK,N_GUARD::QAB(B),XQ(j)
    • R(g);N_GUARD::R1(D),XR(g)
    • R(g);N_GUARD::R1(D)
    • B(m);SBLOCK::B(H)
    • S(a);OGATE::QAB(B)
    • S(a);N_GUARD::QAB(B),XS(a)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • P(i);XS(G)::QAB(B)
      • Refutation
        • Q(j);XS(G)
    • Try
      • B(H);
      • Threat
        • QAR(B)
      • Vars
        • Q(j);CHECK,N_GUARD::B(H),XQ(j)
        • R(g);N_GUARD::R1(D),XR(g)
        • P(f);OGATEB::QAR2(B),XP(f)
        • B(m);SBLOCK::B(H)
        • S(a);OGATE::QAB(B)
        • S(a);N_GUARD::QAB(B),XS(a)
      • Refutation
        • S(l);
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(g);XS(G)::QAB1(B)
        • P(c);::QAB1(B)
        • Q(j);::QAB1(B)
      • Refutation
        • Q(j);CHECK
  • Actual
    • B(H);N_PINP(f)
    • Threat
      • QAR(B)
    • Vars
      • Q(j);CHECK,N_GUARD::QAB(B),XQ(j)
      • P(f);OGATEB,XR(D)::QAR(B)+B(H)
      • P(f);OGATEB,XR(E)::QAR(B)+B(H)
      • R(g);N_GUARD::R1(D),XR(g)
      • B(m);SBLOCK::B(H)
      • S(a);OGATE::QAB(B)
      • S(a);N_GUARD::QAB(B),XS(a)
      • S(l);SBLOCK::B(H)
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