MESON Chess Problem Database

Problem Display
PID: 18317 (8/8/3p4/2pP1P2/2p1kPNp/2p1P2K/2R3N1/7Q w - - 0 1)

Wright Wood, S (= Wood, SW)

Time & Tide, 1954

8/8/3p4/2pP1P2/2p1kPNp/2p1P2K/2R3N1/7Q

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Se1#
    • 1...Kf3
      • 2.Se1#
      • 2.Sxh4#
    • 1...Kxd5
      • 2.Se1#
      • 2.Sxh4#
    • 1...Kxf5
      • 2.Sxh4#
  • Tries
    • 1.Kxh4?
      • 1...Kd3
        • 2.Se1#
      • 1...Kf3
        • 2.Se1#
      • 1...Kxd5
        • 2.Se1#
      • 1...Kxf5!
    • 1.Sf2+?
      • 1...Kf3
        • 2.Qd1#
      • 1...Kxd5
        • 2.Se1#
        • 2.Sxh4#
      • 1...Kxf5!
    • 1.Sf6+?
      • 1...Kd3
        • 2.Qd1#
      • 1...Kf3
        • 2.Qd1#
        • 2.Qf1#
      • 1...Kxf5!
    • 1.Ra2?
      • 1...Kd3
        • 2.Se1#
        • 2.Sf2#
      • 1...Kf3
        • 2.Se1#
        • 2.Sxh4#
      • 1...Kxd5
        • 2.Se1#
        • 2.Sxh4#
      • 1...Kxf5
        • 2.Sxh4#
      • 1...c2!
    • 1.Rd2?
      • threat
        • 2.Sxh4#
      • 1...Kf3
        • 2.Se1#
        • 2.Sxh4#
      • 1...Kxf5
        • 2.Sxh4#
      • 1...cxd2!
    • 1.Rf2?
      • 1...Kd3
        • 2.Se1#
      • 1...Kxd5
        • 2.Se1#
        • 2.Sxh4#
      • 1...Kxf5
        • 2.Sxh4#
      • 1...c2!
    • 1.Rxc3?
      • threat
        • 2.Sxh4#
      • 1...Kxd5
        • 2.Se1#
        • 2.Sxh4#
      • 1...Kxf5
        • 2.Sxh4#
        • 2.Qb1#
      • 1...Kf3!
    • 1.Qf1?
      • 1...Kxd5
        • 2.Qf3#
      • 1...Kxf5!
    • 1.f6?
      • 1...Kd3
        • 2.Se1#
      • 1...Kf3
        • 2.Se1#
        • 2.Sxh4#
      • 1...Kf5
        • 2.Sxh4#
      • 1...Kxd5!
  • Keys
    • 1.Qb1!
      • 1...Kd3
        • 2.Sf2#
      • 1...Kf3
        • 2.Rf2#
      • 1...Kxd5
        • 2.Qb7#
      • 1...Kxf5
        • 2.Rxc3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::S(C)
    • K(c);S_FLIGHT,XP(I)::S(C),XP(d)
  • Tries
    • Try
      • K(E);P-FLIGHT,XP(d)
      • Vars
        • K(c);S_FLIGHT::S(C)
        • K(c);S_FLIGHT::QAB(A)+S(C),DCHECK
        • K(c);S_FLIGHT,XP(H)::QAB(A)+S(C)
      • Refutation
        • K(c);S_FLIGHT,XP(I)
    • Try
      • S(G);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB(A)
      • Refutation
        • K(c);S_FLIGHT,XP(I)
    • Try
      • S(G);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR2(A)
      • Refutation
        • K(c);S_FLIGHT,XP(I)
    • Try
      • R(B);
      • Vars
        • K(c);S_FLIGHT,XP(I)::S(C),XP(d)
      • Refutation
        • P(a);
    • Try
      • R(B);
      • Threat
        • QAB(A)+S(C),XP(d)
      • Vars
        • K(c);S_FLIGHT,XP(I)::S(C),XP(d)
      • Refutation
        • P(a);XR(B)
    • Try
      • R(B);
      • Vars
        • K(c);S_FLIGHT::S(C)
        • K(c);S_FLIGHT,XP(I)::S(C),XP(d)
      • Refutation
        • P(a);
    • Try
      • R(B);XP(a)
      • Threat
        • QAB(A)+S(C),XP(d)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(c);S_FLIGHT,XP(H)::QAB(A)
      • Refutation
        • K(c);S_FLIGHT,XP(I)
    • Try
      • P(I);
      • Vars
        • K(c);S_FLIGHT::S(C)
        • K(c);S_FLIGHT::S(C),XP(d)
      • Refutation
        • K(c);S_FLIGHT,XP(H)
  • Actual
    • Q(A);
    • Vars
      • K(c);S_FLIGHT::S(G)
      • K(c);S_FLIGHT::R1(B)
      • K(c);OGATEB,S_FLIGHT,XP(H)::QAB(A)
      • K(c);S_FLIGHT,XP(I)::QAB(A)+R(B),XP(a)
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