MESON Chess Problem Database

Problem Display
PID: 16409 (8/6QK/8/8/3n4/6R1/1b5k/r6B w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

Fifty Two-Move Problems, 1940

8/6QK/8/8/3n4/6R1/1b5k/r6B

#2

4 + 4

5454 Near Snap 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Kxh1
      • 2.Rh3#
      • 2.Qh6#
  • Tries
    • 1.Rg2+?
      • 1...Kh3
        • 2.Qh6#
        • 2.Qg3#
        • 2.Qg4#
      • 1...Kxh1!
    • 1.Rb3?
      • threat
        • 2.Qg2#
      • 1...Kxh1
        • 2.Rh3#
      • 1...Rxh1
        • 2.Qg3#
      • 1...Rg1
        • 2.Qh6#
      • 1...Ra7!
    • 1.Rc3?
      • threat
        • 2.Qg2#
      • 1...Kxh1
        • 2.Rh3#
      • 1...Rxh1
        • 2.Qg3#
      • 1...Rg1
        • 2.Qh6#
      • 1...Ra7!
    • 1.Rd3?
      • threat
        • 2.Qg2#
      • 1...Kxh1
        • 2.Rh3#
      • 1...Rxh1
        • 2.Qg3#
      • 1...Rg1
        • 2.Qh6#
      • 1...Ra7!
    • 1.Re3?
      • threat
        • 2.Qg2#
      • 1...Kxh1
        • 2.Rh3#
      • 1...Rxh1
        • 2.Qg3#
      • 1...Rg1
        • 2.Qh6#
      • 1...Ra7!
    • 1.Rf3?
      • threat
        • 2.Qg2#
      • 1...Kxh1
        • 2.Rh3#
      • 1...Rxh1
        • 2.Qg3#
      • 1...Rg1
        • 2.Qh6#
      • 1...Ra7!
    • 1.Qg4?
      • threat
        • 2.Rh3#
        • 2.Qh3#
        • 2.Qh4#
      • 1...Kxh1
        • 2.Rh3#
        • 2.Qh3#
        • 2.Qh5#
        • 2.Qh4#
      • 1...Ra3
        • 2.Qh3#
        • 2.Qh4#
      • 1...Sf3
        • 2.Rh3#
        • 2.Qh3#
      • 1...Sf5
        • 2.Rh3#
        • 2.Qh3#
      • 1...Ra7+!
  • Keys
    • 1.Ra3!
      • threat
        • 2.Qg2#
      • 1...Kxh1
        • 2.Rh3#
      • 1...Rxh1
        • 2.Qg3#
      • 1...Rg1
        • 2.Qh6#

Anticipated by 125414(0000), 21447(1919)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK
      • Refutation
        • K(c);P-FLIGHT,XB(A)
    • Try
      • R(B);
      • Threat
        • QAR1(C)
      • Vars
        • K(c);P-FLIGHT,XB(A)::R(B)
        • R(a);SBLOCK,XB(A)::QAB1(C)
        • R(a);SBLOCK::QAR(C)
      • Refutation
        • R(a);P_PINQ(C)
    • Try
      • R(B);
      • Threat
        • QAR1(C)
      • Vars
        • K(c);P-FLIGHT,XB(A)::R(B)
        • R(a);SBLOCK,XB(A)::QAB1(C)
        • R(a);SBLOCK::QAR(C)
      • Refutation
        • R(a);P_PINQ(C)
    • Try
      • R(B);
      • Threat
        • QAR1(C)
      • Vars
        • K(c);P-FLIGHT,XB(A)::R(B)
        • R(a);SBLOCK,XB(A)::QAB1(C)
        • R(a);SBLOCK::QAR(C)
      • Refutation
        • R(a);P_PINQ(C)
    • Try
      • R(B);
      • Threat
        • QAR1(C)
      • Vars
        • K(c);P-FLIGHT,XB(A)::R(B)
        • R(a);SBLOCK,XB(A)::QAB1(C)
        • R(a);SBLOCK::QAR(C)
      • Refutation
        • R(a);P_PINQ(C)
    • Try
      • R(B);
      • Threat
        • QAR1(C)
      • Vars
        • K(c);P-FLIGHT,XB(A)::R(B)
        • R(a);SBLOCK,XB(A)::QAB1(C)
        • R(a);SBLOCK::QAR(C)
      • Refutation
        • R(a);P_PINQ(C)
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Refutation
        • R(a);CHECK
  • Actual
    • R(B);
    • Threat
      • QAR1(C)
    • Vars
      • K(c);P-FLIGHT,XB(A)::R(B)
      • R(a);SBLOCK,XB(A)::QAB1(C)
      • R(a);SBLOCK::QAR(C)
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