MESON Chess Problem Database

Problem Display
PID: 286393 (3Q4/B2b4/8/2R3N1/3n4/1P1P1PKB/P3P3/R1N3k1 w - - 0 1)

Clements, RH

The Problemist, 1952

3Q4/B2b4/8/2R3N1/3n4/1P1P1PKB/P3P3/R1N3k1

#2

13 + 3

5454 Near Snap 2026
6490 yacpdb 2026

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe2+
      • 2.Sxe2#
    • 1...Sxb3
      • 2.Sxb3#
  • Tries
    • 1.e3?
      • threat
        • 2.Se2#
      • 1...Se2+
        • 2.Sxe2#
      • 1...Kh1
        • 2.Se2#
      • 1...Sf5+!
    • 1.e4?
      • threat
        • 2.Se2#
      • 1...Se2+
        • 2.Sxe2#
      • 1...Kh1
        • 2.Se2#
      • 1...Sf5+!
  • Keys
    • 1.Bg2!
      • 1...Sxe2+
        • 2.Sxe2#
      • 1...Sf5+
        • 2.Rxf5#
      • 1...Sxb3
        • 2.Sxb3#
      • 1...Sxf3
        • 2.Sxf3#
      • 1...Bh3
        • 2.Sxh3#
        • 2.Qxd4#
      • 1...Ba4
        • 2.Sh3#
        • 2.Qxd4#
      • 1...Bg4
        • 2.Qxd4#
      • 1...Bb5
        • 2.Sh3#
        • 2.Qxd4#
      • 1...Bf5
        • 2.Qxd4#
      • 1...Bc6
        • 2.Sh3#
        • 2.Qxd4#
      • 1...Be6
        • 2.Qxd4#
      • 1...Bc8
        • 2.Qxd4#
      • 1...Be8
        • 2.Sh3#
        • 2.Qxd4#
      • 1...Sc2
        • 2.Rxc2#
      • 1...Sb5
        • 2.Rxb5#
      • 1...Sc6
        • 2.Rxc6#
      • 1...Se6
        • 2.Sh3#

This anticipates 173149(2005)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • S(b);CHECK,XP(D)::R(A)+S(B),DCHECK,XS(b)
    • S(b);XP(E)::R(A)+S(B),XS(b)
  • Tries
    • Try
      • P(D);
      • Threat
        • R(A)+S(B),DCHECK
      • Vars
        • S(b);CHECK::R(A)+S(B),DCHECK,XS(b)
        • K(a);P-FLIGHT::R(A)+S(B)
      • Refutation
        • S(b);CHECK
    • Try
      • P(D);
      • Threat
        • R(A)+S(B),DCHECK
      • Vars
        • S(b);CHECK::R(A)+S(B),DCHECK,XS(b)
        • K(a);P-FLIGHT::R(A)+S(B)
      • Refutation
        • S(b);CHECK
  • Actual
    • B(I);
    • Vars
      • S(b);CHECK,XP(D)::R(A)+S(B),DCHECK,XS(b)
      • S(b);CHECK,OGATEB::B(L)+R(J),XS(b)
      • S(b);XP(E)::R(A)+S(B),XS(b)
      • S(b);XP(G)::S(K),XS(b)
      • B(c);OGATE::QAB(M),XS(b)
      • S(b);OGATEB::B(L)+R(J),XS(b)
      • S(b);S_CUTB(c)::S(K)
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