MESON Chess Problem Database

Problem Display
PID: 16921 (8/7b/4n2b/3Q4/4r3/6B1/2RPk1B1/2K5 w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

The Field, 1942

(First published on Sat Apr 11 1942)

8/7b/4n2b/3Q4/4r3/6B1/2RPk1B1/2K5

#2

6 + 5

419 One Hundred Published Problems 1944

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.d3#
    • 1...Ra4
      • 2.Qf3#
    • 1...Rb4
      • 2.Qf3#
    • 1...Rc4
      • 2.Qf3#
    • 1...Rd4
      • 2.Qf3#
    • 1...Rg4
      • 2.Qf3#
    • 1...Rh4
      • 2.Qf3#
    • 1...Re5
      • 2.Qf3#
    • 1...Bxd2+
      • 2.Qxd2#
    • 1...Sd4
      • 2.Qc4#
  • Tries
    • 1.Qxe4+?
      • 1...Be3
        • 2.Qxe3#
        • 2.dxe3#
      • 1...Bxe4!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Qf3#
      • 1...Bxd2+
        • 2.Rxd2#
      • 1...Rf4
        • 2.Qe3#
      • 1...Re3
        • 2.d3#
      • 1...Be3
        • 2.dxe3#
      • 1...Sd4
        • 2.Qc4#
      • 1...Sg5
        • 2.d4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • R(b);N_PINP(C),SBLOCK::R(B)+P(C)
    • R(b);OGATE::QAB1(F)
    • R(b);OGATE,P_PINR(B)::QAB1(F)
    • B(d);CHECK,OGATE,P_SPINB(d),XP(C)::QAR1(F),XB(d)
    • S(c);S_CUTR(b)::QAB(F)
  • Tries
    • Try
      • Q(F);CHECK,XR(b)
      • Refutation
        • B(e);XQ(F)
  • Actual
    • Q(F);
    • Threat
      • QAB1(F)
    • Vars
      • B(d);CHECK,OGATE,P_SPINB(d),XP(C)::R1(B),XB(d)
      • R(b);N_GUARD,N_PINP(C),S_CUTB(d)::QAR1(F)
      • R(b);N_PINP(C),SBLOCK::R(B)+P(C)
      • B(d);::R(B)+P(C),XB(d)
      • S(c);S_CUTR(b)::QAB(F)
      • S(c);N_PINP(C)::R(B)+P(C)
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