MESON Chess Problem Database

Problem Display
PID: 244494 (2R1R1K1/3Q4/8/p2p2p1/2pkp3/3N4/2r1r3/nn1N4 w - - 0 1)

Fomichev, Evgeny Vasilevich

Problem-Forum, 2004

2R1R1K1/3Q4/8/p2p2p1/2pkp3/3N4/2r1r3/nn1N4

#2

6 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd3
      • 2.Qxd5#
    • 1...cxd3
      • 2.Qg7#
    • 1...exd3
      • 2.Qa7#
  • Tries
    • 1.Sc1?
      • threat
        • 2.Qa7#
        • 2.Qg7#
      • 1...Rb2
        • 2.Qg7#
      • 1...Rf2
        • 2.Qa7#
      • 1...Sb3
        • 2.Qg7#
      • 1...Rxc1!
    • 1.Se1?
      • threat
        • 2.Qa7#
        • 2.Qg7#
      • 1...Rb2
        • 2.Qg7#
      • 1...Rf2
        • 2.Qa7#
      • 1...Sb3
        • 2.Qg7#
      • 1...Rxe1!
    • 1.S3b2?
      • threat
        • 2.Qa7#
        • 2.Qg7#
      • 1...Rf2
        • 2.Qa7#
      • 1...Sb3
        • 2.Qg7#
      • 1...Rxb2!
    • 1.S3f2?
      • threat
        • 2.Qa7#
        • 2.Qg7#
      • 1...Rb2
        • 2.Qg7#
      • 1...Sb3
        • 2.Qg7#
      • 1...Rxf2!
    • 1.Sb4?
      • threat
        • 2.Qxd5#
        • 2.Qa7#
        • 2.Qg7#
      • 1...Rf2
        • 2.Qxd5#
        • 2.Qa7#
      • 1...Sb3
        • 2.Qxd5#
        • 2.Qg7#
      • 1...Sc3
        • 2.Qa7#
        • 2.Qg7#
      • 1...axb4!
    • 1.Sf4?
      • threat
        • 2.Qxd5#
        • 2.Qa7#
        • 2.Qg7#
      • 1...Rb2
        • 2.Qxd5#
        • 2.Qg7#
      • 1...Sb3
        • 2.Qxd5#
        • 2.Qg7#
      • 1...Sc3
        • 2.Qa7#
        • 2.Qg7#
      • 1...gxf4!
    • 1.Se5?
      • threat
        • 2.Qa7#
      • 1...e3
        • 2.Qg4#
      • 1...Rb2
        • 2.Rxc4#
      • 1...Sb3!
    • 1.Rc5?
      • threat
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Kxd3
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...cxd3
        • 2.Qxd5#
      • 1...c3
        • 2.Qxd5#
      • 1...Sc3!
    • 1.Rcd8?
      • threat
        • 2.Qxd5#
      • 1...Kxd3
        • 2.Qxd5#
      • 1...Sc3!
    • 1.Re5?
      • threat
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Kxd3
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...exd3
        • 2.Qxd5#
      • 1...e3
        • 2.Qxd5#
      • 1...Sc3!
    • 1.Red8?
      • threat
        • 2.Qxd5#
      • 1...Kxd3
        • 2.Qxd5#
      • 1...Sc3!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Qg7#
      • 1...c3
        • 2.Qa4#
      • 1...Rf2
        • 2.Rxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • K(f);P-FLIGHT,XS(B)::QAR2(C),XP(i)
    • P(e);SBLOCK,XS(B)::QAB(C)
    • P(g);SBLOCK,XS(B)::QAB(C)
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);::QAB(C)
        • R(d);::QAB(C)
        • S(a);::QAB(C)
      • Refutation
        • R(c);XS(B)
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);::QAB(C)
        • R(d);::QAB(C)
        • S(a);::QAB(C)
      • Refutation
        • R(d);XS(B)
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(d);::QAB(C)
        • S(a);::QAB(C)
      • Refutation
        • R(c);XS(B)
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);::QAB(C)
        • S(a);::QAB(C)
      • Refutation
        • R(d);XS(B)
    • Try
      • S(B);
      • Threat
        • DUALS(3)
      • Refutation
        • P(h);XS(B)
    • Try
      • S(B);
      • Threat
        • DUALS(3)
      • Refutation
        • P(j);XS(B)
    • Try
      • S(B);
      • Threat
        • QAB(C)
      • Vars
        • P(g);OGATEB::QAR(C)
        • R(c);N_GUARD::R1(D),XP(e)
      • Refutation
        • S(a);
    • Try
      • R(D);
      • Threat
        • DUALS(2)
      • Vars
        • P(e);SBLOCK,XS(B)::QAR1(C),XP(i)
        • P(e);::QAR1(C),XP(i)
      • Refutation
        • S(b);
    • Try
      • R(D);
      • Threat
        • QAR1(C),XP(i)
      • Vars
        • K(f);P-FLIGHT,XS(B)::QAR2(C),XP(i)
      • Refutation
        • S(b);
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • P(g);SBLOCK,XS(B)::QAR1(C),XP(i)
        • P(g);::QAR1(C),XP(i)
      • Refutation
        • S(b);
    • Try
      • R(E);
      • Threat
        • QAR1(C),XP(i)
      • Vars
        • K(f);P-FLIGHT,XS(B)::QAR2(C),XP(i)
      • Refutation
        • S(b);
  • Actual
    • S(B);
    • Threat
      • QAB(C)
    • Vars
      • P(e);OGATEB::QAR(C)
      • R(d);N_GUARD::R1(E),XP(g)
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