MESON Chess Problem Database

Problem Display
PID: 275687 (B7/8/8/8/6K1/5PR1/8/1QB1n1bk w - - 0 1)

Raican, Paul

Buletin Problemistic, 1974

B7/8/8/8/6K1/5PR1/8/1QB1n1bk

#2

6 + 3

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Kh2
      • 2.Qh7#
    • 1...Bf2
      • 2.Qh7#
    • 1...Bd4
      • 2.Qh7#
    • 1...Bc5
      • 2.Qh7#
    • 1...Bb6
      • 2.Qh7#
    • 1...Ba7
      • 2.Qh7#
  • Tries
    • 1.Bb2?
      • 1...Kh2
        • 2.Qh7#
      • 1...Sxf3
        • 2.Qxg1#
      • 1...Bf2
        • 2.Qh7#
      • 1...Bh2
        • 2.f4#
      • 1...Bd4
        • 2.Qh7#
      • 1...Bc5
        • 2.Qh7#
      • 1...Bb6
        • 2.Qh7#
      • 1...Ba7
        • 2.Qh7#
      • 1...Sc2
        • 2.Qxg1#
      • 1...Sg2
        • 2.Rh3#
      • 1...Sd3
        • 2.Qxg1#
      • 1...Be3!
    • 1.Bd2?
      • 1...Kh2
        • 2.Qh7#
      • 1...Sxf3
        • 2.Qxg1#
      • 1...Bf2
        • 2.Qh7#
      • 1...Bh2
        • 2.f4#
      • 1...Bd4
        • 2.Qh7#
      • 1...Bc5
        • 2.Qh7#
      • 1...Bb6
        • 2.Qh7#
      • 1...Ba7
        • 2.Qh7#
      • 1...Sc2
        • 2.Qxg1#
      • 1...Sg2
        • 2.Rh3#
      • 1...Sd3
        • 2.Qxg1#
      • 1...Be3!
    • 1.Ba3?
      • 1...Kh2
        • 2.Qh7#
      • 1...Sxf3
        • 2.Qxg1#
      • 1...Bf2
        • 2.Qh7#
      • 1...Bh2
        • 2.f4#
      • 1...Bd4
        • 2.Qh7#
      • 1...Bc5
        • 2.Qh7#
      • 1...Bb6
        • 2.Qh7#
      • 1...Ba7
        • 2.Qh7#
      • 1...Sc2
        • 2.Qxg1#
      • 1...Sg2
        • 2.Rh3#
      • 1...Sd3
        • 2.Qxg1#
      • 1...Be3!
    • 1.Be3?
      • 1...Kh2
        • 2.Qh7#
      • 1...Sxf3
        • 2.Qxg1#
      • 1...Bf2
        • 2.Qh7#
      • 1...Bh2
        • 2.f4#
      • 1...Sc2
        • 2.Qxg1#
      • 1...Sg2
        • 2.Rh3#
        • 2.Qxg1#
      • 1...Sd3
        • 2.Qxg1#
      • 1...Bxe3!
    • 1.Bf4?
      • 1...Kh2
        • 2.Qh7#
      • 1...Sxf3
        • 2.Rxg1#
        • 2.Qxg1#
      • 1...Be3
        • 2.Qh7#
      • 1...Bf2
        • 2.Qh7#
      • 1...Bd4
        • 2.Qh7#
      • 1...Bc5
        • 2.Qh7#
      • 1...Bb6
        • 2.Qh7#
      • 1...Ba7
        • 2.Qh7#
      • 1...Sc2
        • 2.Rxg1#
        • 2.Qxg1#
      • 1...Sg2
        • 2.Rh3#
      • 1...Sd3
        • 2.Rxg1#
        • 2.Qxg1#
      • 1...Bh2!
  • Keys
    • 1.Bg5!
      • 1...Kh2
        • 2.Qh7#
      • 1...Sxf3
        • 2.Qxg1#
      • 1...Be3
        • 2.Qh7#
      • 1...Bf2
        • 2.Qh7#
      • 1...Bh2
        • 2.f4#
      • 1...Bd4
        • 2.Qh7#
      • 1...Bc5
        • 2.Qh7#
      • 1...Bb6
        • 2.Qh7#
      • 1...Ba7
        • 2.Qh7#
      • 1...Sc2
        • 2.Qxg1#
      • 1...Sg2
        • 2.Rh3#
      • 1...Sd3
        • 2.Qxg1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT,S_CUTB(b)::QAR(A)
    • B(b);N_GUARD::QAR(A)
  • Tries
    • Try
      • B(B);
      • Vars
        • K(c);P-FLIGHT,S_CUTB(b)::QAR(A)
        • S(a);OGATE,P_SPINB(b),P_SPINS(a),XP(C)::QAR1(A),XB(b)
        • B(b);N_GUARD,P_SPINS(a)::QAR(A)
        • B(b);P_SPINS(a),SBLOCK::B(F)+P(C)
        • S(a);OGATE,P_SPINB(b)::QAR1(A),XB(b)
        • S(a);P_SPINB(b),SBLOCK::R(D)
      • Refutation
        • B(b);P_SPINS(a)
    • Try
      • B(B);
      • Vars
        • K(c);P-FLIGHT,S_CUTB(b)::QAR(A)
        • S(a);OGATE,P_SPINB(b),P_SPINS(a),XP(C)::QAR1(A),XB(b)
        • B(b);N_GUARD,P_SPINS(a)::QAR(A)
        • B(b);P_SPINS(a),SBLOCK::B(F)+P(C)
        • S(a);OGATE,P_SPINB(b)::QAR1(A),XB(b)
        • S(a);P_SPINB(b),SBLOCK::R(D)
      • Refutation
        • B(b);P_SPINS(a)
    • Try
      • B(B);
      • Vars
        • K(c);P-FLIGHT,S_CUTB(b)::QAR(A)
        • S(a);OGATE,P_SPINB(b),P_SPINS(a),XP(C)::QAR1(A),XB(b)
        • B(b);N_GUARD,P_SPINS(a)::QAR(A)
        • B(b);P_SPINS(a),SBLOCK::B(F)+P(C)
        • S(a);OGATE,P_SPINB(b)::QAR1(A),XB(b)
        • S(a);P_SPINB(b),SBLOCK::R(D)
      • Refutation
        • B(b);P_SPINS(a)
    • Try
      • B(B);
      • Vars
        • K(c);P-FLIGHT,S_CUTB(b)::QAR(A)
        • S(a);OGATE,P_SPINB(b),P_SPINS(a),XP(C)::QAR1(A),XB(b)
        • B(b);N_GUARD,P_SPINS(a)::QAR(A)
        • B(b);P_SPINS(a),SBLOCK::B(F)+P(C)
        • S(a);OGATE,P_SPINB(b)::QAR1(A),XB(b)
      • Refutation
        • B(b);P_SPINS(a),XB(B)
    • Try
      • B(B);
      • Vars
        • K(c);P-FLIGHT,S_CUTB(b)::QAR(A)
        • B(b);N_GUARD,P_SPINS(a)::QAR(A)
        • S(a);P_SPINB(b),SBLOCK::R(D)
      • Refutation
        • B(b);P_SPINS(a)
  • Actual
    • B(B);
    • Vars
      • K(c);P-FLIGHT,S_CUTB(b)::QAR(A)
      • S(a);OGATE,P_SPINB(b),P_SPINS(a),XP(C)::QAR1(A),XB(b)
      • B(b);N_GUARD,P_SPINS(a)::QAR(A)
      • B(b);P_SPINS(a),SBLOCK::B(F)+P(C)
      • S(a);OGATE,P_SPINB(b)::QAR1(A),XB(b)
      • S(a);P_SPINB(b),SBLOCK::R(D)
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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).