MESON Chess Problem Database

Problem Display
PID: 64315 (8/6R1/8/8/1B6/8/2k5/K2b3Q w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

200 Assorted Problems (Wenman), 1945

8/6R1/8/8/1B6/8/2k5/K2b3Q

#2

4 + 2

81 Chess 1946
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kc1
      • 2.Rc7#
    • 1...Be2
      • 2.Qb1#
    • 1...Bf3
      • 2.Qb1#
    • 1...Bg4
      • 2.Qb1#
    • 1...Bh5
      • 2.Qb1#
  • Tries
    • 1.Ka2?
      • 1...Kc1
        • 2.Rc7#
      • 1...Be2
        • 2.Qb1#
      • 1...Bf3
        • 2.Qb1#
      • 1...Bg4
        • 2.Qb1#
      • 1...Bh5
        • 2.Qb1#
      • 1...Kd3!
    • 1.Rg3?
      • threat
        • 2.Qc6#
      • 1...Bf3
        • 2.Qb1#
      • 1...Be2
        • 2.Qb1#
      • 1...Bg4
        • 2.Qb1#
      • 1...Bh5
        • 2.Qb1#
      • 1...Kc1!
    • 1.Rd7?
      • threat
        • 2.Qxd1#
      • 1...Kc1
        • 2.Rc7#
        • 2.Qxd1#
      • 1...Be2
        • 2.Qb1#
      • 1...Bf3
        • 2.Qb1#
      • 1...Bg4
        • 2.Qb1#
      • 1...Bh5
        • 2.Qb1#
      • 1...Kb3!
    • 1.Re7?
      • 1...Kc1
        • 2.Rc7#
      • 1...Kd3
        • 2.Qe4#
      • 1...Be2
        • 2.Qb1#
      • 1...Bf3
        • 2.Qb1#
      • 1...Bg4
        • 2.Qb1#
      • 1...Bh5
        • 2.Qb1#
      • 1...Kb3!
    • 1.Qe4+?
      • 1...Kc1
        • 2.Qb1#
      • 1...Kb3!
    • 1.Qd5?
      • threat
        • 2.Rc7#
        • 2.Qc4#
      • 1...Kc1
        • 2.Qd2#
      • 1...Bf3
        • 2.Rc7#
      • 1...Bg4
        • 2.Rc7#
      • 1...Bh5
        • 2.Rc7#
      • 1...Be2!
    • 1.Qf1?
      • threat
        • 2.Qc4#
      • 1...Kc1
        • 2.Rc7#
      • 1...Be2
        • 2.Qb1#
      • 1...Bf3
        • 2.Qb1#
      • 1...Bg4
        • 2.Qb1#
      • 1...Bh5
        • 2.Qb1#
      • 1...Kb3!
    • 1.Qh7+?
      • 1...Kc1
        • 2.Qb1#
      • 1...Kb3!
  • Keys
    • 1.Rg4!
      • 1...Kc1
        • 2.Rc4#
      • 1...Kb3
        • 2.Qxd1#
      • 1...Kd3
        • 2.Qe4#
      • 1...Bxg4
        • 2.Qb1#
      • 1...Be2
        • 2.Qb1#
      • 1...Bf3
        • 2.Qb1#

Anticipated by 5010(1897), 5137(1900)

This anticipates 170891(1954)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(b);P-FLIGHT,P_SPINB(a)::R(D)
    • B(a);OGATE::QAB1(B)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);P-FLIGHT,P_SPINB(a)::R(D)
        • B(a);OGATE::QAB1(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(D);
      • Threat
        • QAR(B)
      • Vars
        • B(a);OGATE::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT,P_SPINB(a)
    • Try
      • R(D);
      • Threat
        • QAB1(B),XB(a)
      • Vars
        • B(a);OGATE::QAB1(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(D);
      • Vars
        • K(b);P-FLIGHT,P_SPINB(a)::R(D)
        • K(b);S_FLIGHT::QAB1(B)
        • B(a);OGATE::QAB1(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);P-FLIGHT::QAB1(B)
        • B(a);::R(D)
      • Refutation
        • B(a);
    • Try
      • Q(B);
      • Threat
        • QAR2(B)
      • Vars
        • K(b);P-FLIGHT,P_SPINB(a)::R(D)
        • B(a);OGATE::QAB1(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(D);
    • Vars
      • K(b);P-FLIGHT,P_SPINB(a)::R(D)
      • K(b);S_FLIGHT::QAB(B),XB(a)
      • K(b);S_FLIGHT::QAB1(B)
      • B(a);OGATE,XR(D)::QAB1(B)
      • B(a);OGATE::QAB1(B)
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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).