MESON Chess Problem Database

Problem Display
PID: 219044 (B3R3/2N5/2p5/4P3/1Qpk4/8/2P3P1/2B4K w - - 0 1)

Bettmann, Edgar

Bettmann, Henry Wald

Bettmann, Jacob

St. Louis Globe Democrat, 1882

B3R3/2N5/2p5/4P3/1Qpk4/8/2P3P1/2B4K

#2

9 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...c5
      • 2.Sb5#
      • 2.Qd2#
  • Tries
    • 1.Kg1?
      • 1...c5
        • 2.Sb5#
        • 2.Qd2#
      • 1...Ke4!
    • 1.Kh2?
      • 1...c5
        • 2.Sb5#
        • 2.Qd2#
      • 1...Ke4!
    • 1.Bd2?
      • 1...c5
        • 2.Sb5#
        • 2.Qc3#
      • 1...Ke4!
    • 1.Bf4?
      • 1...c5
        • 2.Sb5#
        • 2.Se6#
        • 2.Rd8#
        • 2.Qd2#
      • 1...Ke4!
    • 1.Bg5?
      • 1...c5
        • 2.Sb5#
        • 2.Qd2#
      • 1...Ke4!
    • 1.Bh6?
      • 1...c5
        • 2.Sb5#
        • 2.Qd2#
      • 1...Ke4!
    • 1.Bb7?
      • 1...c5
        • 2.Sb5#
        • 2.Qd2#
      • 1...Ke4!
    • 1.Re6?
      • 1...c5
        • 2.Sb5#
        • 2.Qd2#
      • 1...Ke4!
    • 1.Re7?
      • 1...c5
        • 2.Sb5#
        • 2.Qd2#
      • 1...Ke4!
    • 1.Qe1?
      • threat
        • 2.Qe3#
      • 1...Kc5
        • 2.Be3#
      • 1...c3!
    • 1.Qd2+?
      • 1...Ke4
        • 2.Qf4#
      • 1...Kc5!
    • 1.Qa3?
      • threat
        • 2.Qe3#
      • 1...c3
        • 2.Qb4#
      • 1...Ke4!
    • 1.Qa5?
      • 1...c3
        • 2.Qb4#
      • 1...c5
        • 2.Sb5#
        • 2.Qd2#
      • 1...Ke4!
    • 1.Qd6+?
      • 1...Kc3
        • 2.Qd2#
      • 1...Ke4!
    • 1.Qf8?
      • 1...Ke4
        • 2.Qf4#
      • 1...c3
        • 2.Qb4#
      • 1...c5
        • 2.Sb5#
      • 1...Kc3!
    • 1.Qb2+?
      • 1...Kc5
        • 2.Be3#
      • 1...c3
        • 2.Qb4#
      • 1...Ke4!
    • 1.Qb6+?
      • 1...Kc3
        • 2.Qb2#
      • 1...c5
        • 2.Sb5#
      • 1...Ke4!
    • 1.Qb7?
      • 1...Kc3
        • 2.Qb2#
      • 1...Kc5
        • 2.Be3#
      • 1...c3
        • 2.Qb4#
      • 1...c5
        • 2.Sb5#
      • 1...Ke4!
    • 1.Qb8?
      • 1...Kc3
        • 2.Qb2#
      • 1...Kc5
        • 2.Be3#
      • 1...c3
        • 2.Qb4#
      • 1...c5
        • 2.Sb5#
      • 1...Ke4!
    • 1.c3+?
      • 1...Ke4
        • 2.Qb1#
      • 1...Kd3!
    • 1.g3?
      • 1...c5
        • 2.Sb5#
        • 2.Qd2#
      • 1...Ke4!
    • 1.g4?
      • 1...c5
        • 2.Sb5#
        • 2.Qd2#
      • 1...Ke4!
  • Keys
    • 1.Qb1!
      • 1...Kc3
        • 2.Qb2#
      • 1...Ke4
        • 2.c3#
      • 1...Kc5
        • 2.Be3#
      • 1...c3
        • 2.Qb4#
      • 1...c5
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(A);
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(A);
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(A);
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(A);
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(H);
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(I);
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(I);
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(E);N_PINP(a)
      • Threat
        • QAB1(E)
      • Vars
        • K(b);S_FLIGHT::B(A)
      • Refutation
        • P(a);
    • Try
      • Q(E);CHECK,N_PINP(a)
      • Vars
        • K(b);P-FLIGHT,P_SPINP(c)::QAR1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);N_PINP(a)
      • Threat
        • QAB1(E)
      • Vars
        • P(a);OGATEB::QAR2(E)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(c)
    • Try
      • Q(E);N_PINP(a)
      • Vars
        • P(a);OGATEB::QAR2(E)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(c)
    • Try
      • Q(E);CHECK,N_PINP(a)
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(E)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(c)
    • Try
      • Q(E);N_PINP(a)
      • Vars
        • K(b);P-FLIGHT,P_SPINP(c)::QAR1(E)
        • P(a);OGATEB::QAR2(E)
        • P(c);N_GUARD::S(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);CHECK,N_PINP(a)
      • Vars
        • K(b);S_FLIGHT::B(A)
        • P(a);OGATEB,P_SPINP(a)::QAR2(E)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(c)
    • Try
      • Q(E);CHECK,N_PINP(a)
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
        • P(c);P_SPINP(c)::S(G)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(c)
    • Try
      • Q(E);N_PINP(a)
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
        • K(b);S_FLIGHT::B(A)
        • P(a);OGATEB::QAR2(E)
        • P(c);N_GUARD,SBLOCK::S(G)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(c)
    • Try
      • Q(E);N_PINP(a)
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
        • K(b);S_FLIGHT::B(A)
        • P(a);OGATEB::QAR2(E)
        • P(c);N_GUARD,SBLOCK::S(G)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(c)
    • Try
      • P(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB(E)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • P(D);
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • P(D);
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(E);N_PINP(a)
    • Vars
      • K(b);S_FLIGHT::QAB1(E)
      • K(b);P-FLIGHT,P_SPINP(c)::QAB(E)+P(C)
      • K(b);S_FLIGHT::B(A)
      • P(a);OGATEB::QAR2(E)
      • P(c);N_GUARD,SBLOCK::S(G)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).