MESON Chess Problem Database

Problem Display
PID: 110084 (n3RB2/2p2p2/1pP2P2/pP1NP2p/K2p3P/P2k2P1/3p2P1/3Q4 w - - 0 1)

Kisis, Imants J

Sachove umeni (Ceskoslovensky sach), 1974

n3RB2/2p2p2/1pP2P2/pP1NP2p/K2p3P/P2k2P1/3p2P1/3Q4

#2

13 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qb3#
    • 1...Ke4
      • 2.Qf3#
  • Tries
    • 1.Kb3?
      • threat
        • 2.Qf3#
      • 1...Ke4
        • 2.Qf3#
      • 1...a4+!
    • 1.Sb4+?
      • 1...Kc3
        • 2.Qc2#
        • 2.Qb3#
      • 1...Ke3
        • 2.Qf3#
      • 1...Kc4
        • 2.Qc2#
        • 2.Qb3#
      • 1...Ke4
        • 2.Qf3#
      • 1...axb4!
    • 1.Sf4+?
      • 1...Kc3
        • 2.Qb3#
      • 1...Ke3
        • 2.Qe2#
        • 2.Qf3#
      • 1...Kc4
        • 2.Qc2#
        • 2.Qb3#
      • 1...Ke4!
    • 1.Sxc7?
      • 1...Kc3
        • 2.Qb3#
      • 1...Ke3
        • 2.Qf3#
      • 1...Kc4
        • 2.Qc2#
        • 2.Qb3#
      • 1...Ke4
        • 2.Qf3#
      • 1...Sxc7!
    • 1.Bb4?
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qf3#
      • 1...axb4!
    • 1.Bd6?
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qf3#
      • 1...cxd6!
    • 1.Bh6?
      • 1...Ke4
        • 2.Qf3#
      • 1...Kc4!
    • 1.Be7?
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke4!
    • 1.Bg7?
      • 1...Ke4
        • 2.Qf3#
      • 1...Kc4!
    • 1.Re6?
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qf3#
      • 1...fxe6!
    • 1.Re7?
      • 1...Ke4
        • 2.Qf3#
      • 1...Kc4!
    • 1.Rxa8?
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke4!
    • 1.Rb8?
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke4!
    • 1.Rc8?
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke4!
    • 1.Rd8?
      • 1...Kc4
        • 2.Qc2#
        • 2.Qb3#
      • 1...Ke4!
    • 1.Qb3+?
      • 1...Ke4
        • 2.Qf3#
      • 1...Ke2!
    • 1.Qf3+?
      • 1...Kc4
        • 2.Qb3#
      • 1...Kc2!
    • 1.Qb1+?
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke2!
    • 1.Qf1+?
      • 1...Ke4
        • 2.Qf3#
      • 1...Kc2!
    • 1.g4?
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qf3#
      • 1...hxg4!
  • Keys
    • 1.Se7!
      • 1...Kc3
        • 2.Qb3#
      • 1...Ke3
        • 2.Qf3#
      • 1...Kc4
        • 2.Qc2#
      • 1...Ke4
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Threat
        • QAR2(A)
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • P(d);CHECK
    • Try
      • S(H);CHECK
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(A)
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • P(d);XS(H)
    • Try
      • S(H);CHECK
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • S(H);XP(g)
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(A)
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • S(i);XS(H)
    • Try
      • B(M);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • P(d);XB(M)
    • Try
      • B(M);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • P(g);XB(M)
    • Try
      • B(M);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • B(M);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • B(M);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • R(L);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • P(h);XR(L)
    • Try
      • R(L);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • R(L);XS(i)
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • R(L);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • R(L);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • R(L);
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(D);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • P(e);XP(D)
  • Actual
    • S(H);
    • Vars
      • K(b);N_SPINP(a),P-FLIGHT::QAR1(A)
      • K(b);N_SPINP(a),S_FLIGHT::QAR2(A)
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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).